BMW Drive Belts & V-Belts

OEM Accessory Belt Service Kit - F3X F22/23 N55 3.0L

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:587391

Part#: 11287628661ABKT

In Stock

$ 171.99

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

$ 153.99 USD

Add to Wish List

Qty

$ 153.99 USD

Add to Wish List

This kit includes the basic components recommended to replace when it comes time to swap out your accessory belt.

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - BMW N55 F-Chas...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:22097553

Part#: 11287628661TKT

Ships on Feb 23, 2027

Sale - Save 23% $ 131.99

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

$ 101.98 USD

Add to Wish List

Qty

Sale - Save 23%

$ 131.99

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

$ 101.98 USD

Add to Wish List

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

OEM Accessory Belt Service Kit - N54 3.0L

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:554448

Part#: N54ACCKT

Ships in 3 Business Days

Sale - Save 16% $ 187.99

This product was last offered at the strikethrough price on
10-19-2026

$ 158.57 USD

Add to Wish List

Qty

Sale - Save 16%

$ 187.99

This product was last offered at the strikethrough price on
10-19-2026

$ 158.57 USD

Add to Wish List

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

OEM Accessory Belt Service Kit - E82/88 E9X N55

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:567679

Part#: 11287582946KT4

In Stock

Sale - Save 13% $ 213.99

This product was last offered at the strikethrough price on
10-15-2026

$ 187.17 USD

Add to Wish List

Qty

Sale - Save 13%

$ 213.99

This product was last offered at the strikethrough price on
10-15-2026

$ 187.17 USD

Add to Wish List

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

OEM Accessory Belt Service Kit - N52 3.0L

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:593693

Part#: N52ABKT

In Stock

Sale - Save 22% $ 135.99

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

$ 105.43 USD

Add to Wish List

Qty

Sale - Save 22%

$ 135.99

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

$ 105.43 USD

Add to Wish List

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

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - BMW E82/88 E9X...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:22163422

Part#: 11287568247TKT

Ships on Dec 8, 2026

Sale - Save 7% $ 179.99

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

$ 167.32 USD

Add to Wish List

Qty

Sale - Save 7%

$ 179.99

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

$ 167.32 USD

Add to Wish List

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

OEM Accessory Belt Service Kit - F3X F10 N20 2.0L

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

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

Add to Wish List

Qty

Sale - Save 29%

$ 89.15

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

$ 62.94 USD

Add to Wish List

This kit includes the basic components recommended to replace when it comes time to swap out your accessory belt.

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - BMW N52 ...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:22130432

Part#: 11287530314TKT

In Stock

Sale - Save 18% $ 127.99

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

$ 104.71 USD

Add to Wish List

Qty

Sale - Save 18%

$ 127.99

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

$ 104.71 USD

Add to Wish List

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

N54 AC Delete Accessory Belt Kit - BMW N54 3.0L

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

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

Add to Wish List

Qty

Sale - Save 13%

$ 75.99

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

$ 66.28 USD

Add to Wish List

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

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - F3X F10 N20 2....

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:22097555

Part#: 11287618848TKT

Ships on Dec 8, 2026

Sale - Save 34% $ 106.99

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

$ 70.48 USD

Add to Wish List

Qty

Sale - Save 34%

$ 106.99

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

$ 70.48 USD

Add to Wish List

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

Accessory Belt Service Kit - E39 E46 M54 (2002+)

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:401685

Part#: 11287512762KT3

Ships in 1 Business Day

Sale - Save 22% $ 228.99

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

$ 179.56 USD

Add to Wish List

Qty

Sale - Save 22%

$ 228.99

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

$ 179.56 USD

Add to Wish List

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

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - F07/10 F06/12/...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:23482929

Part#: 8PK1478TKT

Ships in 10 Business Days

Sale - Save 23% $ 167.99

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

$ 129.72 USD

Add to Wish List

Qty

Sale - Save 23%

$ 167.99

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

$ 129.72 USD

Add to Wish List

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

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - F8X S55 ...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:22163426

Part#: 11287848605TKT

Ships in 10 Business Days

Sale - Save 10% $ 414.99

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

$ 374.04 USD

Add to Wish List

Qty

Sale - Save 10%

$ 414.99

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

$ 374.04 USD

Add to Wish List

Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes ECS Kevlar Reinforced Drive Belts, 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

S54 Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul S...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:15710772

Part#: 11281730349-KT

Ships in 1 Business Day

Sale - Save 8% $ 499.99

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

$ 458.99 USD

Add to Wish List

Qty

Sale - Save 8%

$ 499.99

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

$ 458.99 USD

Add to Wish List

The idea of power pulleys is simple. The less effort the engine puts into running accessories such as the water pump, power steering, pump alternator etc., the more of that power can be used elsewhere - your wheels! The way this is done by reducing the rotation of the pulleys by as much as 10-20%! The end result is more horsepower at your disposal. Turner has done extensive testing (on and off the track), to ensure that the accessory systems still function as intended and without failure. These pulleys offer an excellent compromise of power gains, reliability and performance. All Turner pulleys are constructed of high quality T-6061 aluminum for durability and longevity. They are also finished in a black hard anodizing, which is highly resistant to wear including chemical and heat exposure. They have been designed to carry stock-like aesthetics, but with increased strength properties and lighter weight. Because of the durable aluminum construction, you can also put the worries of a serious plastic failure to rest. These pulleys will last, all the while increasing horsepower too! While you're installing your Power Pulley Kit, it makes sense to overhaul your Accessory Belt System as well, so this kit includes our Accessory Belt Kit as well.

Show More Show Less

OEM Accessory Belt Service Kit - B46/48 B58

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:587399

Part#: 112886137071ABKT

In Stock

Sale - Save 24% $ 121.99

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

$ 92.60 USD

Add to Wish List

Qty

Sale - Save 24%

$ 121.99

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

$ 92.60 USD

Add to Wish List

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

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - F22/23 F3X B58...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:22097533

Part#: 11288613707TKT

Ships on Nov 16, 2026

Sale - Save 24% $ 137.99

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

$ 105.35 USD

Add to Wish List

Qty

Sale - Save 24%

$ 137.99

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

$ 105.35 USD

Add to Wish List

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

Performance Accessory Belt Kit - Kevlar Reinforced - BMW B46TU/B48TU...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:29798952

Part#: 11288650740T1KT

Ships on Nov 16, 2026

Sale - Save 24% $ 137.99

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

$ 105.35 USD

Add to Wish List

Qty

Sale - Save 24%

$ 137.99

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

$ 105.35 USD

Add to Wish List

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

ARP Harmonic Damper Bolt Set - BMW S58

Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:49092362

Part#: ARP-CBS-S58

Ships in 3 Business Days

$ 134.99 USD

Add to Wish List

Qty

$ 134.99 USD

Add to Wish List

The OE crank bolts are grade 10 torque-to-yield bolts, designed for only a single use. For vehicles making stock power, the stock bolts are more than enough. Unfortunately, vehicles making more power than stock have experienced issues with the stock damper bolts coming loose and breaking, leading to engine and crank damage. 5150 AutoSport worked with ARP to create this ARP Harmonic Damper Bolt Set to address this issue. These upgraded bolts are stronger than the factory bolts and are designed to provide even repeatable torque load, preventing them from breaking and allowing them to be re-torqued as needed.

Show More Show Less

OEM Accessory Belt Service Kit - BMW F8X S55

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:589853

Part#: PBTABF8XS55KT

In Stock

$ 433.99

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

$ 412.99 USD

Add to Wish List

Qty

$ 412.99 USD

Add to Wish List

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

OEM Accessory Belt Service Kit - E30 M20

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:554430

Part#: 64521706826KT1

Ships on Nov 16, 2026

$ 204.09

This product was last offered at the strikethrough price on
10-23-2026

$ 200.25 USD

Add to Wish List

Qty

$ 200.25 USD

Add to Wish List

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:
1984-1991 E30 BWM 325, 325i/is/ix, 325e/es

Show More Show Less

N54 "Bulletproof" Crank Hub & Serpentine Kit - BMW E82/88 E9X N54 3.0...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:1241396

Part#: TMSN54BPKT

In Stock

Sale - Save 10% $ 570.99

This product was last offered at the strikethrough price on
10-28-2026

$ 513.26 USD

Add to Wish List

Qty

Sale - Save 10%

$ 570.99

This product was last offered at the strikethrough price on
10-28-2026

$ 513.26 USD

Add to Wish List

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

ALTA Crank Pulley - 0% (Stock Size) MINI W11 1.6L Engine

Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:394899

Part#: AMPENG500

In Stock

$ 129.99 USD

Add to Wish List

Qty

$ 129.99 USD

Add to Wish List

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

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - BMW E82/88 E9X...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:22163417

Part#: 11287582946TKT

Ships on Dec 8, 2026

Sale - Save 9% $ 223.99

This product was last offered at the strikethrough price on
09-16-2026

$ 204.63 USD

Add to Wish List

Qty

Sale - Save 9%

$ 223.99

This product was last offered at the strikethrough price on
09-16-2026

$ 204.63 USD

Add to Wish List

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

N55 "Bulletproof" Crank Hub & Serpentine Kit - BMW E82/88 E9X N55 3.0...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:1241397

Part#: TMSE90N55BPKT

In Stock

Sale - Save 6% $ 624.99

This product was last offered at the strikethrough price on
10-17-2026

$ 584.91 USD

Add to Wish List

Qty

Sale - Save 6%

$ 624.99

This product was last offered at the strikethrough price on
10-17-2026

$ 584.91 USD

Add to Wish List

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

OEM Accessory Belt Service Kit - E39, E46 M54 (up to 2002)

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:401686

Part#: 11281748131KT2

Ships in 1 Business Day

Sale - Save 22% $ 272.99

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

$ 212.21 USD

Add to Wish List

Qty

Sale - Save 22%

$ 272.99

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

$ 212.21 USD

Add to Wish List

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

Hydraulic Alternator Belt Tensioner Conversion Kit

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:15710833

Part#: 11287838797-KT

Ships in 1 Business Day

Sale - Save 27% $ 165.99

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

$ 120.96 USD

Add to Wish List

Qty

Sale - Save 27%

$ 165.99

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

$ 120.96 USD

Add to Wish List

The original mechanical design is has been discontinued by BMW. So now Turner offers this complete hydraulic tensioner conversion kit for your BMW alternator/water pump/power steering belt. Changes the old style mechanical design to the updated hydraulic design recommended by BMW. Includes the following parts Hydraulic Tensioner Adjusting Pulley Caps & Dust Guards Securing Hardware

Show More Show Less

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - BMW E60 N54 3....

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:22163416

Part#: 4485241TKT

Ships on Dec 8, 2026

Sale - Save 23% $ 177.99

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

$ 136.47 USD

Add to Wish List

Qty

Sale - Save 23%

$ 177.99

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

$ 136.47 USD

Add to Wish List

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

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E36 Z3 M52 S52...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:22130428

Part#: 11281437929TKT

Ships on Nov 16, 2026

Sale - Save 23% $ 264.99

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

$ 204.94 USD

Add to Wish List

Qty

Sale - Save 23%

$ 264.99

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

$ 204.94 USD

Add to Wish List

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

ALTA Crank Pulley - 2% - R52 R53

Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:26238480

Part#: AMPENG520

In Stock

$ 129.99 USD

Add to Wish List

Qty

$ 129.99 USD

Add to Wish List

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

OEM Accessory Belt Service Kit - E46 E39 E53 M54 (Pre-09/2002) ...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:554446

Part#: M54ACCKT2

Ships in 1 Business Day

Sale - Save 27% $ 256.99

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

$ 186.35 USD

Add to Wish List

Qty

Sale - Save 27%

$ 256.99

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

$ 186.35 USD

Add to Wish List

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

Dinan Replacement Underdrive Pulley Belt For D560-0001 - Alternator/W...

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:21078444

Part#: D561-0006

Ships in 5 Business Days

Sale - Save 10% $ 63.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 57.56 USD

Add to Wish List

Qty

Sale - Save 10%

$ 63.99

This product was last offered at the strikethrough price on
09-29-2026

$ 57.56 USD

Add to Wish List

Replacement Belt for Underdrive Pulley Kit (D560-0001). This belt drives the alternator and water pump.

Dinan Replacement Underdrive Pulley Belt For D560-0001 - Power Steeri...

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:21078443

Part#: D561-0005

Ships in 5 Business Days

Sale - Save 10% $ 63.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 57.56 USD

Add to Wish List

Qty

Sale - Save 10%

$ 63.99

This product was last offered at the strikethrough price on
09-29-2026

$ 57.56 USD

Add to Wish List

Replacement Belt for Underdrive Pulley Kit (D560-0001). This belt attaches to the power steering and air conditioner.

S55 "Bulletproof" Crank Hub & Serpentine Kit - BMW F8X S55 3.0L ...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:1241399

Part#: TMSS55BPKT

Ships on Jan 12, 2027

Sale - Save 3% $ 804.99

This product was last offered at the strikethrough price on
10-28-2026

$ 780.84 USD

Add to Wish List

Qty

Sale - Save 3%

$ 804.99

This product was last offered at the strikethrough price on
10-28-2026

$ 780.84 USD

Add to Wish List

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

Replacement Belt For Underdrive Pulley Kit D560-0003 & D560-0004 ...

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:586065

Part#: D561-0007

Ships in 5 Business Days

Sale - Save 10% $ 95.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 86.30 USD

Add to Wish List

Qty

Sale - Save 10%

$ 95.99

This product was last offered at the strikethrough price on
09-29-2026

$ 86.30 USD

Add to Wish List

OEM Accessory Belt Service Kit - E36 328 M3, Z3 2.8 M Coupe/Roadster ...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:593717

Part#: M52ABSKT

Ships in 1 Business Day

Sale - Save 23% $ 241.99

This product was last offered at the strikethrough price on
10-12-2026

$ 185.69 USD

Add to Wish List

Qty

Sale - Save 23%

$ 241.99

This product was last offered at the strikethrough price on
10-12-2026

$ 185.69 USD

Add to Wish List

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

OEM Accessory Belt Service Kit - F10 F12 F13 F15 F16 F01 F02 ...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:554454

Part#: N55BMWKT

Ships on Jan 11, 2027

Sale - Save 7% $ 200.99

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

$ 187.58 USD

Add to Wish List

Qty

Sale - Save 7%

$ 200.99

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

$ 187.58 USD

Add to Wish List

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

Accessory Belt Kit

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:15744006

Part#: 11281469266KT-KT

Ships in 1 Business Day

Sale - Save 21% $ 236.99

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

$ 187.00 USD

Add to Wish List

Qty

Sale - Save 21%

$ 236.99

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

$ 187.00 USD

Add to Wish List

Having your accessory belt fail is definitely inconvenient, and can leave you on the side of the road if the alternator isn't charging. Over time the tensioner and the belt itself gets worn and will eventually fail. Turner Motorsport has assembled a convenient kit with this in mind. This kit includes everything you need to service the belt drive system and keep everything in check. This kit includes: Continental accessory belts Ruville A/C belt tensioner URO idler and belt tensioner pulleys LUK hydraulic tensioner assembly Idler pulley securing bolt

Show More Show Less

E9X M3 6/2008+ Dinan Underdrive Pulley Kit

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:389532

Part#: D560-0004

Ships in 5 Business Days

Sale - Save 10% $ 449.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 404.96 USD

Add to Wish List

Qty

Sale - Save 10%

$ 449.99

This product was last offered at the strikethrough price on
09-28-2026

$ 404.96 USD

Add to Wish List

BMW E9X M3 Replacement Belt For Underdrive Pulley Kit - (D560-0004) ...

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Call In, Chat, Or Email, For Best Price! Limited Time Only!

T#:586064

Part#: D561-0002

Back Ordered

Sale - Save 10% $ 126.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 114.26 USD

Add to Wish List

Qty

Sale - Save 10%

$ 126.99

This product was last offered at the strikethrough price on
09-29-2026

$ 114.26 USD

Add to Wish List

BMW E9X M3 Replacement Belt For Underdrive Pulley Kit - (D560-0004) is an essential component designed specifically for the Underdrive Pulley Kit. This belt is one of the two required for optimal performance of the kit.

Designed for Precision: Tailored to fit the BMW E9X M3 Underdrive Pulley Kit perfectly.
High-Quality Construction: Built to withstand the demands of high-performance driving.
Optimal Performance: Ensures smooth operation and reliable power delivery.
Easy Replacement: Simple to install, making maintenance straightforward.

Show More Show Less

Dinan Underdrive Crankshaft Pulley Kit - E60 M5, E63/64 M6 S85 5.0L ...

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:21078436

Part#: D560-0001

Ships in 5 Business Days

Sale - Save 10% $ 449.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 404.96 USD

Add to Wish List

Qty

Sale - Save 10%

$ 449.99

This product was last offered at the strikethrough price on
09-28-2026

$ 404.96 USD

Add to Wish List

Dinan's lightweight billet aluminum crankshaft pulley underdrives each of the accessories by 13 percent, reducing parasitic drag on the engine for a 6 HP @ 8000 RPM and 4 lb-ft torque @ 8000 RPM gain on a stock vehicle. The Dinan underdrive pulley retains the factory harmonic crankshaft damper, eliminating vibration that might otherwise damage the crankshaft. The kit includes all of the necessary mounting hardware, a lightweight pulley, and shorter belts. This product is backed by our industry-leading 4 year/50,000 mile warranty so you can rest assured that you are purchasing the best quality product for your BMW. Features: All accessories are underdriven by 13% to decrease drag on the engine. Lightweight billet aluminum crankshaft pulley, black anodized and engraved. Includes mounting hardware and shorter belts.

Show More Show Less

Serpentine Belt Kit - S58

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:41661237

Part#: 11288581628T1KT

Ships in 1 day

$ 305.99 USD

Add to Wish List

Qty

$ 305.99 USD

Add to Wish List

Ensure your BMW S58-powered vehicle continues to perform at its best with this reliable and performance-oriented serpentine belt kit.

N55 "Bulletproof" Crank Hub & Serpentine Kit - BMW F22/23 F3X N55 3.0...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:1241398

Part#: TMSF30N55BPKT

Ships on Feb 23, 2027

Sale - Save 10% $ 555.99

This product was last offered at the strikethrough price on
10-28-2026

$ 499.54 USD

Add to Wish List

Qty

Sale - Save 10%

$ 555.99

This product was last offered at the strikethrough price on
10-28-2026

$ 499.54 USD

Add to Wish List

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

Water Pump/Alternator Accessory Belt Service Kit w/ Kevlar Reinforced...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:22097556

Part#: 6PK1548TKT

Ships on Feb 23, 2027

$ 129.99 USD

Add to Wish List

Qty

$ 129.99 USD

Add to Wish List

Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Accessory Belt, tensioner assembly, and your 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

OEM Accessory Belt Service Kit - E60 M5, E63 E64 M6 S85

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:584180

Part#: 11287838226KT4

Ships in 5 Business Days

$ 908.99

This product was last offered at the strikethrough price on
09-26-2026

$ 903.99 USD

Add to Wish List

Qty

$ 903.99 USD

Add to Wish List

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

OEM Belt and Tensioner Service Kit for Power Pulley Kit - E9X M3 ...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:391555

Part#: S65LPPK-BELTKT

Ships in 4 Business Days

$ 931.99 USD

Add to Wish List

Qty

$ 931.99 USD

Add to Wish List

We’ve put together the Ultimate Belt & Tensioner Renewal Kit, curated specifically for M3 owners running our Turner E9X M3 Pulley Upgrade. Designed to restore factory fresh mechanical precision while maintaining high performance reliability

Show More Show Less

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 M3, Z3M, Z...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:23482931

Part#: S54KEVACCKT

Ships on Nov 16, 2026

Sale - Save 14% $ 333.99

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

$ 285.88 USD

Add to Wish List

Qty

Sale - Save 14%

$ 333.99

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

$ 285.88 USD

Add to Wish List

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

Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E90 335d M57 ...

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:23416570

Part#: 11287792059TKT

Back Ordered

$ 244.10 USD

Add to Wish List

Qty

$ 244.10 USD

Add to Wish List

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

OEM Accessory Belt Service Kit - E9X M3 S65

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:391554

Part#: 11287837898

Ships in 4 Business Days

$ 964.99

This product was last offered at the strikethrough price on
08-24-2026

Starting at $ 931.99 USD

Add to Wish List

Starting at $ 931.99 USD

Add to Wish List

This comprehensive kit includes both belts, belt tensioners, upper and lower deflection pulleys, and the adjusting pulley. Select from all Genuine BMW parts or a combination of OEM/OE BMW parts. Staying on top of your belt maintenance is the smart move. Cracked or worn belts are a recipe for a headache or worse. The main drive belt runs critical components - the alternator, water pump, and power steering pump. The pulleys contain bearings that may be worn when it comes time to replace the belts. You can check the pulleys by relieving tension on the belt and feeling each pulley for play or grinding. The tensioner also sees similar wear. If your pulleys are new or don't need replacement, you can pick up the belts on their own.

Show More Show Less

OEM Accessory Belt Kit - E46 M3

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:554437

Part#: E46M3ACCKT

Ships in 1 Business Day

Sale - Save 24% $ 350.99

This product was last offered at the strikethrough price on
08-24-2026

$ 267.56 USD

Add to Wish List

Qty

Sale - Save 24%

$ 350.99

This product was last offered at the strikethrough price on
08-24-2026

$ 267.56 USD

Add to Wish List

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:
2001-2006 E46 BMW M3

Show More Show Less

OEM Accessory Belt Service Kit - E34 525i M20

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:589759

Part#: PBTABE34M20KT

Ships on Jan 11, 2027

$ 144.23 USD

Add to Wish List

Qty

$ 144.23 USD

Add to Wish List

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

Project Cars

SELECT YOUR BMW

Sub-Categories

ALTA Lightweight Crank Pulley (LCP) for Mini

Select Vehicle

Purpose

Category

Brand

Price

Special Offers

Shipping

Narrow Results