Find Parts That Fit Your Vehicle

BMW Drive Belts & V-Belts

Your BMW's drive belts are wear items, and will degrade and crack over time. Don't wait until you have a belt failure... don't get stranded! Replacing your BMW's belts, such as the alternator belt, power steering belt, air conditioning AC belt, or serpentine belt is a low cost insurance policy to preventing a break down -- or worse, engine damage. We recommend checking your belts every 10,000 miles. If your belts have excessive cracks, dry rot, missing teeth and/or grooves, are cause noise, it's time for new ones.

While also inspecting your serpentine belts, also check for wear or resistance in the pulleys. The tensioner pulley and deflection pulley are the primary sources for belt squealing. The rubber-isolated pulleys can also break apart, leading to total belt failure. We sell the tensioner and deflection pulleys for the M50 engine family used in the E34, E36, E39, E46, X5, Z3, and Z4.

Sub-Categories

Sort By:

Packaged by Turner - Corporate Logo
T#:22097553
Part#: 11287628661TKT
In Stock
Sale - Save 23% $ 131.99

This product was last offered at the strikethrough price on
06-16-2026

$ 101.98 USD
Free Shipping on orders $49 and up
Sale - Save 23%
$ 131.99

This product was last offered at the strikethrough price on
06-16-2026

$ 101.98 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, tensioner assembly, and idler pulley. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
Packaged by Turner - Corporate Logo
T#:554448
Part#: N54ACCKT
In Stock
Sale - Save 15% $ 197.99

This product was last offered at the strikethrough price on
04-15-2026

$ 169.24 USD
Free Shipping
Sale - Save 15%
$ 197.99

This product was last offered at the strikethrough price on
04-15-2026

$ 169.24 USD
Free Shipping
Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.
Show More Show Less
Packaged by Turner - Corporate Logo
T#:22163422
Part#: 11287568247TKT
Ships in 7 Business Days
Sale - Save 15% $ 209.99

This product was last offered at the strikethrough price on
04-15-2026

$ 178.94 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 209.99

This product was last offered at the strikethrough price on
04-15-2026

$ 178.94 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, tensioner assembly, and idler pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less

Packaged by Turner - Corporate Logo
T#:587390
Part#: 11287594969ABKT
In Stock
Sale - Save 29% $ 89.15

This product was last offered at the strikethrough price on
06-29-2026

$ 62.94 USD
Free Shipping
Sale - Save 29%
$ 89.15

This product was last offered at the strikethrough price on
06-29-2026

$ 62.94 USD
Free Shipping
This kit includes the basic components recommended to replace when it comes time to swap out your accessory belt.

Packaged by Turner - Corporate Logo
T#:567679
Part#: 11287582946KT4
In Stock
Sale - Save 12% $ 212.99

This product was last offered at the strikethrough price on
03-19-2026

$ 187.17 USD
Free Shipping
Sale - Save 12%
$ 212.99

This product was last offered at the strikethrough price on
03-19-2026

$ 187.17 USD
Free Shipping
Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need to be replaced such as the belts, tensioners, and hardware.
Show More Show Less
Packaged by Turner - Corporate Logo
T#:593693
Part#: N52ABKT
In Stock
Sale - Save 18% $ 135.99

This product was last offered at the strikethrough price on
07-08-2026

$ 111.50 USD
Free Shipping
Sale - Save 18%
$ 135.99

This product was last offered at the strikethrough price on
07-08-2026

$ 111.50 USD
Free Shipping
Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.
Show More Show Less

Packaged by Turner - Corporate Logo
T#:22130432
Part#: 11287530314TKT
Ships in 7 Business Days
Sale - Save 18% $ 127.99

This product was last offered at the strikethrough price on
05-03-2026

$ 104.71 USD
Free Shipping on orders $49 and up
Sale - Save 18%
$ 127.99

This product was last offered at the strikethrough price on
05-03-2026

$ 104.71 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, tensioner assembly, and idler pulley. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
Packaged by Turner - Corporate Logo
T#:26771665
Part#: 7PK1660KT
In Stock
Sale - Save 13% $ 75.99

This product was last offered at the strikethrough price on
05-03-2026

$ 66.28 USD
Free Shipping on orders $49 and up
Sale - Save 13%
$ 75.99

This product was last offered at the strikethrough price on
05-03-2026

$ 66.28 USD
Free Shipping on orders $49 and up
This AC Delete Accessory Belt Kit includes a new idler pulley and a shorter ECS Kevlar belt for deleting your AC compressor. ECS Tuning Performance Kevlar reinforced belts give you that extra piece of mind! Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432
Show More Show Less

Packaged by Turner - Corporate Logo
T#:22097555
Part#: 11287618848TKT
In Stock
Sale - Save 34% $ 106.99

This product was last offered at the strikethrough price on
06-01-2026

$ 70.48 USD
Free Shipping on orders $49 and up
Sale - Save 34%
$ 106.99

This product was last offered at the strikethrough price on
06-01-2026

$ 70.48 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt and an OEM tensioner assembly. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the tensioner and upgrading your accessory belt is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less

Packaged by Turner - Corporate Logo
T#:554454
Part#: N55BMWKT
In Stock at Vendor
Sale - Save 8% $ 200.99

This product was last offered at the strikethrough price on
06-09-2026

$ 185.68 USD
Free Shipping
Sale - Save 8%
$ 200.99

This product was last offered at the strikethrough price on
06-09-2026

$ 185.68 USD
Free Shipping

Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

For vehicles with dynamic or adaptive drive 

Fits the following BMWs:
F01/02 BMW
 740i/Li/Li xDrive
F10 BMW 535i/i xDrive
F12/3 BMW 640i/i xDrive
F15 BMW X5 s/xDrive35i
F16 BMW X6 s/xDrive35i

Show More Show Less
Packaged by Turner - Corporate Logo
T#:401685
Part#: 11287512762KT3
In Stock
Sale - Save 3% $ 228.99

This product was last offered at the strikethrough price on
06-23-2026

$ 222.24 USD
Free Shipping
Sale - Save 3%
$ 228.99

This product was last offered at the strikethrough price on
06-23-2026

$ 222.24 USD
Free Shipping
This kit covers many of the common wear items that should be changed any time the serpentine belt is being replaced. As these cars gain years and mileage the belt tensioners will also need to be replaced along with the actual belts. It won't do any good to replace the belt if the tensioners are worn. This kit will save you time and money over buying these pieces individually. This kit includes an updated hydraulic alternator tensioner for added reliability and longevity.
Show More Show Less
Packaged by Turner - Corporate Logo
T#:1241396
Part#: TMSN54BPKT
Back Ordered
Sale - Save 6% $ 541.99

This product was last offered at the strikethrough price on
05-03-2026

$ 509.74 USD
Free Shipping
Sale - Save 6%
$ 541.99

This product was last offered at the strikethrough price on
05-03-2026

$ 509.74 USD
Free Shipping
BMW has a seemingly endless number of fans of the N54/N55/S55 engines, three straight-six turbo engines that are each capable of 750+ horsepower, but that doesn't mean they were without their faults! BMW's N54 had a notoriously rocky start with reliability due to multiple issues such as fuel injectors failing, turbos failing, serpentine belt failure, crank hubs coming loose, and more... BMW made multiple attempts to fix the issues plaguing the N54, but they could only do so much and the fixes rolled out seemed temporary at best. Following the N54, BMW released their updated N55 and S55 engines, giving many people hope that these engines would address the previous issues. Unfortunately, this was only some-what the case. Crank hubs and crank bolts continued to loosen over time and serpentine belts continued to shred themselves and get pulled into the oil pan through the front main seal. For all three engines, this meant a single failure could effectively turn your engine into an oversized paperweight. Luckily for us, the BMW community is full of skilled enthusiasts who have gladly taken up the task to offer solutions! The first headache to be addressed was the Crank Hub and Bolt. Using a simple plate that fits perfectly over your crank hub's hex-head bolt and mounts up against the damper, the crank bolt is effectively locked in place, preventing it from being able to back out until the plate is fully removed. Next up was the serpentine belt failures. It's not known what exactly causes the serpentine belt to split, but once it does, the pieces hanging off of the belt wrap around and behind the damper. This leads to the belt breaking up into smaller pieces and eventually getting pushed between the crank hub and rear main seal into the oil pan. These small pieces of debris get caught in and block the oil pickup, preventing oil flow and leading to engine failure. To prevent this, multiple aftermarket companies came up with their own versions of Crank Seal Plates. This plate is installed behind the front damper, blocking the opening that allows the serpentine belt to pass between the crank hub and seal, keeping debris out of your oil pan! Also included in this kit are the components to service your front Oil Cooler/Filter Housing gaskets, refresh your drive belt system, and install the aftermarket upgrades. Kit Features and Contents: Vargas Turbo Crank Bolt Capture Vargas Turbo Crank Seal Plate OEM Accessory Belt OEM Belt Tensioner & Idler Pullies Liqui-Moly Longtime High Tech Engine Oil (5w-30) - 7 Liters OEM Hengst Oil Filter OEM Oil Filter/Cooler Housing Gaskets TMS Oil Change Sticker Genuine BMW Full-Strength Coolant - 1 Liter Looking to go even further and upgrade your Crank Hub as well? Check out T#558924
Show More Show Less


Packaged by Turner - Corporate Logo
T#:22097533
Part#: 11288613707TKT
Ships on Oct 27, 2026
Sale - Save 24% $ 137.99

This product was last offered at the strikethrough price on
05-03-2026

$ 105.35 USD
Free Shipping on orders $49 and up
Sale - Save 24%
$ 137.99

This product was last offered at the strikethrough price on
05-03-2026

$ 105.35 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, tensioner assembly, and the hardware required to install the new tensioner. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
Packaged by Turner - Corporate Logo
T#:29798952
Part#: 11288650740T1KT
Ships on Oct 27, 2026
Sale - Save 24% $ 137.99

This product was last offered at the strikethrough price on
05-03-2026

$ 105.35 USD
Free Shipping on orders $49 and up
Sale - Save 24%
$ 137.99

This product was last offered at the strikethrough price on
05-03-2026

$ 105.35 USD
Free Shipping on orders $49 and up
Having your accessory belt fail is a major inconvenience and can leave you on the side of the road if the alternator isn't charging and the mechanical water pump isn't turning. Over time the tensioner and the belt itself wears out and will eventually fail. This kit includes everything you need to service the belt drive system and keep everything in check. Included: ECS Tuning Kevlar Reinforced Performance Accessory Belt - Designed to resist OEM Febi Belt Tensioner Genuine BMW Tensioner Hardware
Show More Show Less
Packaged by Turner - Corporate Logo
T#:22163417
Part#: 11287582946TKT
In Stock
Sale - Save 7% $ 220.99

This product was last offered at the strikethrough price on
01-27-2026

$ 204.63 USD
Free Shipping on orders $49 and up
Sale - Save 7%
$ 220.99

This product was last offered at the strikethrough price on
01-27-2026

$ 204.63 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, belt tensioner, and idler pullies. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less

Packaged by Turner - Corporate Logo
T#:587399
Part#: 112886137071ABKT
Back Ordered
Sale - Save 18% $ 121.99

This product was last offered at the strikethrough price on
05-03-2026

$ 99.57 USD
Free Shipping
Sale - Save 18%
$ 121.99

This product was last offered at the strikethrough price on
05-03-2026

$ 99.57 USD
Free Shipping
Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need to be replaced such as the belts, tensioners, and hardware.
Show More Show Less

Alta Performance - Corporate Logo
T#:26238480
Part#: AMPENG520
In Stock at Vendor
Sale - Save 11% $ 129.99

This product was last offered at the strikethrough price on
07-17-2026

$ 116.28 USD
Free Shipping on orders $49 and up
Sale - Save 11%
$ 129.99

This product was last offered at the strikethrough price on
07-17-2026

$ 116.28 USD
Free Shipping on orders $49 and up

Enhance the performance of your Mini with the ALTA Lightened Crank Pulley (LCP), engineered to increase horsepower and torque. Available in 0% Stock Sized and +2% Oversized options, this pulley is crafted from 6061T6 aluminum, weighing only 0.65 lbs. Significantly lighter than the stock crank pulley, the ALTA LCP ensures improved engine efficiency without adding vibration or noise. The +2% Oversized pulley provides additional boost for Supercharged Cooper S models, delivering safe and reliable performance. With increased belt contact, this pulley reduces wear and enhances durability, making it a must-have upgrade for Mini enthusiasts.

  • Increases horsepower and torque
  • Lightweight 6061T6 aluminum construction
  • Available in 0% Stock Sized and +2% Oversized options
  • Does not affect charging system
  • Improves engine efficiency and performance
Show More Show Less
Packaged by Turner - Corporate Logo
T#:1241397
Part#: TMSE90N55BPKT
In Stock
$ 576.99

This product was last offered at the strikethrough price on
07-22-2026

$ 576.37 USD
Free Shipping
$ 576.37 USD
Free Shipping
BMW has a seemingly endless number of fans of the N54/N55/S55 engines, three straight-six turbo engines that are each capable of 750+ horsepower, but that doesn't mean they were without their faults! BMW's N54 had a notoriously rocky start with reliability due to multiple issues such as fuel injectors failing, turbos failing, serpentine belt failure, crank hubs coming loose, and more... BMW made multiple attempts to fix the issues plaguing the N54, but they could only do so much and the fixes rolled out seemed temporary at best. Following the N54, BMW released their updated N55 and S55 engines, giving many people hope that these engines would address the previous issues. Unfortunately, this was only some-what the case. Crank hubs and crank bolts continued to loosen over time and serpentine belts continued to shred themselves and get pulled into the oil pan through the front main seal. For all three engines, this meant a single failure could effectively turn your engine into an oversized paperweight. Luckily for us, the BMW community is full of skilled enthusiasts who have gladly taken up the task to offer solutions! The first headache to be addressed was the Crank Hub and Bolt. Using a simple plate that fits perfectly over your crank hub's hex-head bolt and mounts up against the damper, the crank bolt is effectively locked in place, preventing it from being able to back out until the plate is fully removed. Next up was the serpentine belt failures. It's not known what exactly causes the serpentine belt to split, but once it does, the pieces hanging off of the belt wrap around and behind the damper. This leads to the belt breaking up into smaller pieces and eventually getting pushed between the crank hub and rear main seal into the oil pan. These small pieces of debris get caught in and block the oil pickup, preventing oil flow and leading to engine failure. To prevent this, multiple aftermarket companies came up with their own versions of Crank Seal Plates. This plate is installed behind the front damper, blocking the opening that allows the serpentine belt to pass between the crank hub and seal, keeping debris out of your oil pan! Also included in this kit are the components to service your front Oil Cooler/Filter Housing gaskets, refresh your drive belt system, and install the aftermarket upgrades. Kit Features and Contents: Vargas Turbo Crank Bolt Capture Vargas Turbo Crank Seal Plate OEM Accessory Belt OEM Belt Tensioner & Idler Pullies Liqui-Moly Longtime High Tech Engine Oil (5w-30) - 7 Liters OEM Hengst Oil Filter OEM Oil Filter/Cooler Housing Gaskets TMS Oil Change Sticker Genuine BMW Full-Strength Coolant - 1 Liter
Show More Show Less

Alta Performance - Corporate Logo
T#:394899
Part#: AMPENG500
In Stock at Vendor
Sale - Save 11% $ 129.99

This product was last offered at the strikethrough price on
07-17-2026

$ 116.28 USD
Free Shipping
Sale - Save 11%
$ 129.99

This product was last offered at the strikethrough price on
07-17-2026

$ 116.28 USD
Free Shipping

ALTA Lightweight Crank Pulley (LCP) for Mini

Upgrade your Mini's performance with the ALTA Lightweight Crank Pulley (LCP), designed to increase horsepower and torque. Available in two sizes - 0% Stock Sized and +2% Oversized - this pulley is engineered for Supercharged Cooper S models. Crafted from 6061T6 aluminum, the ALTA pulley is lightweight, weighing just 0.65 lbs, providing a weight reduction of over 2.3 lbs compared to the stock crank pulley.

  • Increases horsepower and torque
  • Lightweight design reduces rotational mass
  • Does not wear out engine bearings or oil pump
  • Adds boost safely and reliably
  • Improves belt contact with pulleys, reducing wear
Show More Show Less
Packaged by Turner - Corporate Logo
T#:401686
Part#: 11281748131KT2
In Stock
Sale - Save 3% $ 272.99

This product was last offered at the strikethrough price on
06-23-2026

$ 265.58 USD
Free Shipping
Sale - Save 3%
$ 272.99

This product was last offered at the strikethrough price on
06-23-2026

$ 265.58 USD
Free Shipping
This kit covers many of the common wear items that should be changed any time the serpentine belt is being replaced. As these cars gain years and mileage the belt tensioners will also need to be replaced along with the actual belts. It won't do any good to replace the belt if the tensioners are worn. This kit will save you time and money over buying these pieces individually. This kit includes an updated hydraulic alternator tensioner for added reliability and longevity.
Show More Show Less

Packaged by Turner - Corporate Logo
T#:22130428
Part#: 11281437929TKT
In Stock
Sale - Save 8% $ 264.99

This product was last offered at the strikethrough price on
05-03-2026

$ 244.54 USD
Free Shipping on orders $49 and up
Sale - Save 8%
$ 264.99

This product was last offered at the strikethrough price on
05-03-2026

$ 244.54 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulleys and cracked drive belts with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, an OEM A/C belt, belt tensioners, an idler pulley, and the hardware required for installation ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the belts, rollers, and tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less

Packaged by Turner - Corporate Logo
T#:554446
Part#: M54ACCKT2
In Stock
Sale - Save 3% $ 256.99

This product was last offered at the strikethrough price on
06-23-2026

$ 249.51 USD
Free Shipping
Sale - Save 3%
$ 256.99

This product was last offered at the strikethrough price on
06-23-2026

$ 249.51 USD
Free Shipping

Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
2000-09/2002 E53 BMW X5 M54
2000-09/2002 E39 BMW M54
1999-09/2002 E46 BMW M54

Show More Show Less
Packaged by Turner - Corporate Logo
T#:22163416
Part#: 4485241TKT
In Stock
Sale - Save 23% $ 177.99

This product was last offered at the strikethrough price on
05-03-2026

$ 136.47 USD
Free Shipping on orders $49 and up
Sale - Save 23%
$ 177.99

This product was last offered at the strikethrough price on
05-03-2026

$ 136.47 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, belt tensioner, and idler pullies. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
Packaged by Turner - Corporate Logo
T#:1241399
Part#: TMSS55BPKT
Ships on Oct 5, 2026
Sale - Save 3% $ 794.99

This product was last offered at the strikethrough price on
07-07-2026

$ 769.97 USD
Free Shipping
Sale - Save 3%
$ 794.99

This product was last offered at the strikethrough price on
07-07-2026

$ 769.97 USD
Free Shipping
BMW has a seemingly endless number of fans of the N54/N55/S55 engines, three straight-six turbo engines that are each capable of 750+ horsepower, but that doesn't mean they were without their faults! BMW's N54 had a notoriously rocky start with reliability due to multiple issues such as fuel injectors failing, turbos failing, serpentine belt failure, crank hubs coming loose, and more... BMW made multiple attempts to fix the issues plaguing the N54, but they could only do so much and the fixes rolled out seemed temporary at best. Following the N54, BMW released their updated N55 and S55 engines, giving many people hope that these engines would address the previous issues. Unfortunately, this was only some-what the case. Crank hubs and crank bolts continued to loosen over time and serpentine belts continued to shred themselves and get pulled into the oil pan through the front main seal. For all three engines, this meant a single failure could effectively turn your engine into an oversized paperweight. Luckily for us, the BMW community is full of skilled enthusiasts who have gladly taken up the task to offer solutions! The first headache to be addressed was the Crank Hub and Bolt. Using a simple plate that fits perfectly over your crank hub's hex-head bolt and mounts up against the damper, the crank bolt is effectively locked in place, preventing it from being able to back out until the plate is fully removed. Next up was the serpentine belt failures. It's not known what exactly causes the serpentine belt to split, but once it does, the pieces hanging off of the belt wrap around and behind the damper. This leads to the belt breaking up into smaller pieces and eventually getting pushed between the crank hub and rear main seal into the oil pan. These small pieces of debris get caught in and block the oil pickup, preventing oil flow and leading to engine failure. To prevent this, multiple aftermarket companies came up with their own versions of Crank Seal Plates. This plate is installed behind the front damper, blocking the opening that allows the serpentine belt to pass between the crank hub and seal, keeping debris out of your oil pan! Also included in this kit are the components to service your front Oil Cooler/Filter Housing gaskets, refresh your drive belt system, and install the aftermarket upgrades. Kit Features and Contents: Vargas Turbo Crank Bolt Capture Vargas Turbo Crank Seal Plate OEM Accessory Belt OEM Belt Tensioner & Idler Pullies Liqui-Moly Longtime High Tech Engine Oil (5w-30) - 7 Liters OEM Hengst Oil Filter OEM Oil Filter/Cooler Housing Gaskets TMS Oil Change Sticker Genuine BMW Full-Strength Coolant - 1 Liter Looking to go even further and upgrade your Crank Hub as well? Check out T#585961 and T#599784!
Show More Show Less


Packaged by Turner - Corporate Logo
T#:23482929
Part#: 8PK1478TKT
In Stock
Sale - Save 23% $ 167.99

This product was last offered at the strikethrough price on
05-03-2026

$ 129.72 USD
Free Shipping on orders $49 and up
Sale - Save 23%
$ 167.99

This product was last offered at the strikethrough price on
05-03-2026

$ 129.72 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, tensioner assembly, and new pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
Packaged by Turner - Corporate Logo
T#:1241398
Part#: TMSF30N55BPKT
In Stock
Sale - Save 6% $ 520.99

This product was last offered at the strikethrough price on
05-03-2026

$ 491.62 USD
Free Shipping
Sale - Save 6%
$ 520.99

This product was last offered at the strikethrough price on
05-03-2026

$ 491.62 USD
Free Shipping
BMW has a seemingly endless number of fans of the N54/N55/S55 engines, three straight-six turbo engines that are each capable of 750+ horsepower, but that doesn't mean they were without their faults! BMW's N54 had a notoriously rocky start with reliability due to multiple issues such as fuel injectors failing, turbos failing, serpentine belt failure, crank hubs coming loose, and more... BMW made multiple attempts to fix the issues plaguing the N54, but they could only do so much and the fixes rolled out seemed temporary at best. Following the N54, BMW released their updated N55 and S55 engines, giving many people hope that these engines would address the previous issues. Unfortunately, this was only some-what the case. Crank hubs and crank bolts continued to loosen over time and serpentine belts continued to shred themselves and get pulled into the oil pan through the front main seal. For all three engines, this meant a single failure could effectively turn your engine into an oversized paperweight. Luckily for us, the BMW community is full of skilled enthusiasts who have gladly taken up the task to offer solutions! The first headache to be addressed was the Crank Hub and Bolt. Using a simple plate that fits perfectly over your crank hub's hex-head bolt and mounts up against the damper, the crank bolt is effectively locked in place, preventing it from being able to back out until the plate is fully removed. Next up was the serpentine belt failures. It's not known what exactly causes the serpentine belt to split, but once it does, the pieces hanging off of the belt wrap around and behind the damper. This leads to the belt breaking up into smaller pieces and eventually getting pushed between the crank hub and rear main seal into the oil pan. These small pieces of debris get caught in and block the oil pickup, preventing oil flow and leading to engine failure. To prevent this, multiple aftermarket companies came up with their own versions of Crank Seal Plates. This plate is installed behind the front damper, blocking the opening that allows the serpentine belt to pass between the crank hub and seal, keeping debris out of your oil pan! Also included in this kit are the components to service your front Oil Cooler/Filter Housing gaskets, refresh your drive belt system, and install the aftermarket upgrades. Kit Features and Contents: Vargas Turbo Crank Bolt Capture Vargas Turbo Crank Seal Plate ECS Kevlar reinforced accessory belt OEM Belt Tensioner & Idler Pullies Liqui-Moly Longtime High Tech Engine Oil (5w-30) - 7 Liters OEM Hengst Oil Filter OEM Oil Filter/Cooler Housing Gaskets TMS Oil Change Sticker Genuine BMW Full-Strength Coolant - 1 Liter
Show More Show Less
Packaged by Turner - Corporate Logo
T#:23482931
Part#: S54KEVACCKT
Ships in 7 Business Days
Sale - Save 3% $ 333.99

This product was last offered at the strikethrough price on
05-03-2026

$ 323.77 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 333.99

This product was last offered at the strikethrough price on
05-03-2026

$ 323.77 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less

Packaged by Turner - Corporate Logo
T#:23416570
Part#: 11287792059TKT
In Stock
Sale - Save 3% $ 240.99

This product was last offered at the strikethrough price on
06-01-2026

$ 233.95 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 240.99

This product was last offered at the strikethrough price on
06-01-2026

$ 233.95 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less

Packaged by Turner - Corporate Logo
T#:16580
Part#: E60-M5-UDP-BELTS
Ships in 6 Business Days
Sale - Save 3% $ 49.95

This product was last offered at the strikethrough price on
05-03-2026

$ 48.44 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 49.95

This product was last offered at the strikethrough price on
05-03-2026

$ 48.44 USD
Free Shipping on orders $49 and up
These are the replacement drive belts used in our Turner Pulley Kit on the S85 V10 engine (E60 M5 and E63/E64 M6). These belts are shorter than the stock belt since our underdrive crank pulley is a larger diameter than stock. Because of the different lengths, you cannot use a stock belt with the Pulley Kit. This set of belts includes the main drive belt (6PK-1400) and the A/C belt (6PK-1045).

This belt set fits the following BMWs with the Turner Pulley Kit:
2006-2010 E60 BMW M5
2004-2011 E63 E64 BMW M6
Show More Show Less
Packaged by Turner - Corporate Logo
T#:23482922
Part#: 4PK863ATKT
Ships on Aug 24, 2026
Sale - Save 3% $ 254.99

This product was last offered at the strikethrough price on
05-03-2026

$ 246.93 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 254.99

This product was last offered at the strikethrough price on
05-03-2026

$ 246.93 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less

Packaged by Turner - Corporate Logo
T#:554445
Part#: M54ACCKT
In Stock
Sale - Save 3% $ 249.99

This product was last offered at the strikethrough price on
06-23-2026

$ 242.90 USD
Free Shipping
Sale - Save 3%
$ 249.99

This product was last offered at the strikethrough price on
06-23-2026

$ 242.90 USD
Free Shipping

Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
09/2002-2006 E53 BMW X5 M54
09/2002-2003 E39 BMW M54
09/2002-2005 E46 BMW M54

Show More Show Less
Packaged by Turner - Corporate Logo
T#:393209
Part#: E46S54SIPULLEY
Ships on Aug 11, 2026
Sale - Save 16% $ 1,029.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 870.23 USD
Free Shipping
Sale - Save 16%
$ 1,029.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 870.23 USD
Free Shipping

Shark Injector Performance Software
The enthusiast's choice for over a decade, the Shark Injector's performance is only equaled by its own ease of install! Tune your ECU at the press of a button simply by plugging into the under-dash OBDII diagnostic port, there is no removal of your car's computer; no laptop or cables required. What does the Shark offer?

  • Excellent horsepower and torque gains - peak: 18whp/11wtq, max: 22whp/16wtq
  • Faster and smoother throttle response
  • Top speed limiter removed
  • Extremely easy to install/uninstall
  • Reversible and reusable
  • Elevated 8,250 RPM rev limiter
  • Compatible with 91 octane; 93 recommended

Turner Motorsport Power Pulleys 
Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! We measured 10.7 whp at 6960 rpm and 8.1 lb-ft of torque at 5550 on a 1995 M3. Race pulleys deliver even more power. 

Another "no-downside" upgrade, we even include a new belt. Total install time for a 3-piece pulley set should be around 1.5 hours. We offer three options in pulleys:
1.) No alternator pulley included - for cars with big amps and powerful stereo systems that need the extra juice.
2.) Street Power Pulleys - our most popular option with no downside!
3.) Race Power Pulleys - delivering 15 "free" horsepower, this set underdrives the water pump, power steering pulley, and alternator for lower temps, less wear, and more power. Not for street use. 

 

 

Intake Air Temperature Relocation Kit
Looking to maximize your power gains? Add a Turner IAT Relocation to combat power-robbing heat soak - the only true plug-and-play solution available. Heat soak is a real plague on consistent power for a stock or tuned vehicle. Click here to read more about our IAT relocation kit.

 

This item fits the following BMWs:
2001-2006 E46 BMW M3

 

Show More Show Less

Packaged by Turner - Corporate Logo
T#:22196328
Part#: 3PK968TKT
In Stock
Sale - Save 23% $ 121.99

This product was last offered at the strikethrough price on
05-03-2026

$ 93.74 USD
Free Shipping on orders $49 and up
Sale - Save 23%
$ 121.99

This product was last offered at the strikethrough price on
05-03-2026

$ 93.74 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt and tensioner assembly. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less

Packaged by Turner - Corporate Logo
T#:29798950
Part#: 11288650740TKT
In Stock
Sale - Save 15% $ 141.99

This product was last offered at the strikethrough price on
05-03-2026

$ 121.31 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 141.99

This product was last offered at the strikethrough price on
05-03-2026

$ 121.31 USD
Free Shipping on orders $49 and up
Having your accessory belt fail is a major inconvenience and can leave you on the side of the road if the alternator isn't charging and the mechanical water pump isn't turning. Over time the tensioner and the belt itself wears out and will eventually fail. This kit includes everything you need to service the belt drive system and keep everything in check. Included: Gates Green Heavy Duty Accessory Belt - Designed to exceed OE durability, felxibility, and longevity OEM Febi Belt Tensioner Genuine BMW Tensioner Hardware
Show More Show Less
Alta Performance - Corporate Logo
T#:27938418
Part#: AMPENG195BK
In Stock at Vendor
Sale - Save 10% $ 99.99

This product was last offered at the strikethrough price on
07-17-2026

$ 89.51 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 99.99

This product was last offered at the strikethrough price on
07-17-2026

$ 89.51 USD
Free Shipping on orders $49 and up

MINI R52 R53 Adjustable Tensioner Stop - Black

Upgrade your Mini's engine with the MINI R52 R53 Adjustable Tensioner Stop - Black. Engineered for precision and durability, this tensioner stop allows for easy adjustment of belt tension, ensuring optimal performance. Say goodbye to belt slippage and enjoy improved engine reliability with this high-quality accessory.

  • Allows for easy adjustment of belt tension
  • Prevents belt slippage for improved engine reliability
  • Engineered for precision and durability
  • Enhances performance of your Mini's engine
  • Sleek black design adds a stylish touch
Show More Show Less
Packaged by Turner - Corporate Logo
T#:30430718
Part#: 11288646475KT2
In Stock
Sale - Save 19% $ 130.99

This product was last offered at the strikethrough price on
05-03-2026

$ 105.75 USD
Free Shipping on orders $49 and up
Sale - Save 19%
$ 130.99

This product was last offered at the strikethrough price on
05-03-2026

$ 105.75 USD
Free Shipping on orders $49 and up

Don't let an accessory belt failure leave you stranded! Over time, the tensioner and belt wear out, risking your alternator's ability to charge and your vehicle's overall reliability. Turner Motorsport has assembled a comprehensive belt drive service kit to keep everything in check and ensure smooth operation.

Key Benefits:

Complete Service Kit: Includes all necessary components to maintain your belt drive system. Enhanced Reliability: Prevents unexpected belt failures and keeps your vehicle running smoothly. Optimized Performance: Ensures your alternator and A/C system function efficiently. Kit Contents:

Accessory Belt Belt Tensioner Assembly A/C Belt Maintain your BMW's performance and reliability with the Turner Motorsport drive belt service kit!

Show More Show Less


Packaged by Turner - Corporate Logo
T#:589745
Part#: PBTABE3XM60KT
Ships in 8 Business Days
Sale - Save 9% $ 702.99

This product was last offered at the strikethrough price on
05-03-2026

$ 640.44 USD
Free Shipping
Sale - Save 9%
$ 702.99

This product was last offered at the strikethrough price on
05-03-2026

$ 640.44 USD
Free Shipping
Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.
Show More Show Less
Packaged by Turner - Corporate Logo
T#:589743
Part#: PBTAB323KT
Ships in 8 Business Days
Sale - Save 2% $ 349.11

This product was last offered at the strikethrough price on
06-23-2026

$ 342.70 USD
Free Shipping
Sale - Save 2%
$ 349.11

This product was last offered at the strikethrough price on
06-23-2026

$ 342.70 USD
Free Shipping
Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.
Show More Show Less
Packaged by Turner - Corporate Logo
T#:56218611
Part#: N55BMWKT4
In Stock at Vendor
New Item
$ 185.68 USD
Free Shipping on orders $49 and up
This comprehensive drive service kit is built around high grade Continental and INA original equipment parts. Designed to handle high load operation, this kit restores factory belt geometry and dynamic tensioning
Show More Show Less

Packaged by Turner - Corporate Logo
T#:22196333
Part#: 11287636373T2KT
Ships in 1-2 days
Sale - Save 5% $ 120.99

This product was last offered at the strikethrough price on
03-27-2026

$ 114.42 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 120.99

This product was last offered at the strikethrough price on
03-27-2026

$ 114.42 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, hydraulic tensioner, and two new pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less

Packaged by Turner - Corporate Logo
T#:22163421
Part#: 64551727378TKT
Ships in 1-2 days
Sale - Save 2% $ 69.99

This product was last offered at the strikethrough price on
05-03-2026

$ 68.85 USD
Free Shipping on orders $49 and up
Sale - Save 2%
$ 69.99

This product was last offered at the strikethrough price on
05-03-2026

$ 68.85 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt and adjuster pulley. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
Packaged by Turner - Corporate Logo
T#:22196332
Part#: 11287636373TKT
Ships in 1-2 days
Sale - Save 6% $ 123.00

This product was last offered at the strikethrough price on
02-27-2026

$ 115.39 USD
Free Shipping on orders $49 and up
Sale - Save 6%
$ 123.00

This product was last offered at the strikethrough price on
02-27-2026

$ 115.39 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, hydraulic tensioner, and two new pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less

Packaged by Turner - Corporate Logo
T#:22163412
Part#: 11288581628TKT
In Stock
Sale - Save 2% $ 246.99

This product was last offered at the strikethrough price on
05-03-2026

$ 242.70 USD
Free Shipping on orders $49 and up
Sale - Save 2%
$ 246.99

This product was last offered at the strikethrough price on
05-03-2026

$ 242.70 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, tensioner assembly, and the hardware required to install the new tensioner. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
Packaged by Turner - Corporate Logo
T#:29798955
Part#: 11288650740T2KT
Back Ordered
Sale - Save 18% $ 121.99

This product was last offered at the strikethrough price on
05-03-2026

$ 99.57 USD
Free Shipping on orders $49 and up
Sale - Save 18%
$ 121.99

This product was last offered at the strikethrough price on
05-03-2026

$ 99.57 USD
Free Shipping on orders $49 and up
Having your accessory belt fail is a major inconvenience and can leave you on the side of the road if the alternator isn't charging and the mechanical water pump isn't turning. Over time the tensioner and the belt itself wears out and will eventually fail. This kit includes everything you need to service the belt drive system and keep everything in check. Included: OEM Continental Accessory Belt OEM Febi Belt Tensioner Genuine BMW Tensioner Hardware
Show More Show Less

Packaged by Turner - Corporate Logo
T#:27672133
Part#: 11238511371TKT5
Ships in 7 Business Days
Sale - Save 3% $ 714.99

This product was last offered at the strikethrough price on
02-10-2026

$ 696.95 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 714.99

This product was last offered at the strikethrough price on
02-10-2026

$ 696.95 USD
Free Shipping on orders $49 and up
The vibration damper in the E70 X5 35d is a common failure item and can fail at as low as 60 thousand miles leaving you stranded. This kit includes everything needed to replace your vibration damper and service your drive belt system! Vibration Dampers (also called Harmonic Dampers or Harmonic Balancers) absorb and remove unwanted vibrations due to torsional twisting of the crankshaft. During cylinder combustions, the crank quickly flexes ever so slightly, resulting in resonance vibrations. These vibrations could lead to damage of the crankshaft or crank bearings over time if not accounted for. The vibration damper helps to eliminate these vibrations, thereby extending the life of your engine's mechanical components and preventing damage. If your vibration damper has failed, you will likely notice excess engine vibrations or shaking that will gradually get worse, especially around certain RPMs where the vibration resonance is most pronounced. This kit includes all of the components necessary to replace your damper with an OEM damper from Corteco, including belts, pulleys, hardware, and more. Also included in this kit is a brand-new line of specialty tools from Schwaben designed specifically for this replacement! You will get a Crankshaft Pulley Turner Tool, Stretch Belt Remover/Installer, T50 Alternator Wrench, and a 15/16" Pass-Through Socket, all included to make swapping out your old damper a quick and easy process! Standard tools you might need but are not included: 8mm Drill Bit (to use as flywheel locking pin) 32mm Fan Clutch Wrench - You may want a second 32mm to hold the coupler in place 24mm Box Wrench - For releasing tensioner Torque Wrench - To torque new crankshaft bolts Breaker Bar - to drive the crankshaft bolts further
Show More Show Less

Packaged by Turner - Corporate Logo
T#:27672134
Part#: 11238511371TKT6
Ships in 7 Business Days
Sale - Save 1% $ 577.99

This product was last offered at the strikethrough price on
05-03-2026

$ 573.43 USD
Free Shipping on orders $49 and up
Sale - Save 1%
$ 577.99

This product was last offered at the strikethrough price on
05-03-2026

$ 573.43 USD
Free Shipping on orders $49 and up
The vibration damper in the E70 X5 35d is a common failure item and can fail at as low as 60 thousand miles leaving you stranded. This kit includes everything needed to replace your vibration damper and service your drive belt system! Vibration Dampers (also called Harmonic Dampers or Harmonic Balancers) absorb and remove unwanted vibrations due to torsional twisting of the crankshaft. During cylinder combustions, the crank quickly flexes ever so slightly, resulting in resonance vibrations. These vibrations could lead to damage of the crankshaft or crank bearings over time if not accounted for. The vibration damper helps to eliminate these vibrations, thereby extending the life of your engine's mechanical components and preventing damage. If your vibration damper has failed, you will likely notice excess engine vibrations or shaking that will gradually get worse, especially around certain RPMs where the vibration resonance is most pronounced. This basic kit includes the components necessary to replace your damper with an OEM damper from Corteco, including two belts and the Corteco Vibration Damper pulley. Also included in this kit is a brand-new line of specialty tools from Schwaben designed specifically for this replacement! You will get a Crankshaft Pulley Turner Tool, Stretch Belt Remover/Installer, T50 Alternator Wrench, and a 15/16" Pass-Through Socket, all included to make swapping out your old damper a quick and easy process! Standard tools you might need but are not included: 8mm Drill Bit (to use as flywheel locking pin) 32mm Fan Clutch Wrench - You may want a second 32mm to hold the coupler in place 24mm Box Wrench - For releasing tensioner Torque Wrench - To torque new crankshaft bolts Breaker Bar - to drive the crankshaft bolts further
Show More Show Less
Packaged by Turner - Corporate Logo
T#:22097548
Part#: 11281706545TKT
Ships on Aug 24, 2026
Sale - Save 8% $ 263.99

This product was last offered at the strikethrough price on
05-03-2026

$ 241.79 USD
Free Shipping on orders $49 and up
Sale - Save 8%
$ 263.99

This product was last offered at the strikethrough price on
05-03-2026

$ 241.79 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes everything you need to service the belt drive system and keep everything in check, including the updated Hydraulic tensioner to keep your E46 driving like a dream. This kit also includes ECS Tuning's Kevlar reinforced belt for longer life and resistance. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
Packaged by Turner - Corporate Logo
T#:23482925
Part#: 4PK863CTKT
Ships on Aug 24, 2026
Sale - Save 9% $ 219.99

This product was last offered at the strikethrough price on
05-03-2026

$ 201.15 USD
Free Shipping on orders $49 and up
Sale - Save 9%
$ 219.99

This product was last offered at the strikethrough price on
05-03-2026

$ 201.15 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less


Packaged by Turner - Corporate Logo
T#:23482923
Part#: 4PK863BTKT
Ships on Aug 24, 2026
Sale - Save 1% $ 283.99

This product was last offered at the strikethrough price on
05-03-2026

$ 279.92 USD
Free Shipping on orders $49 and up
Sale - Save 1%
$ 283.99

This product was last offered at the strikethrough price on
05-03-2026

$ 279.92 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
Packaged by Turner - Corporate Logo
T#:589856
Part#: PBTABM62KT
Ships on Aug 10, 2026
Sale - Save 2% $ 531.99

This product was last offered at the strikethrough price on
05-03-2026

$ 519.30 USD
Free Shipping
Sale - Save 2%
$ 531.99

This product was last offered at the strikethrough price on
05-03-2026

$ 519.30 USD
Free Shipping
Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.
Show More Show Less