BMW Drive Belts & V-Belts

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

10X Entries Into Our F80 M3 Sweepstakes

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

T#:554448

Part#: N54ACCKT

Ships in 1 Business Day

Sale - Save 5% $ 197.99

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

$ 187.11 USD

Add to Wish List

Qty

Sale - Save 5%

$ 197.99

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

$ 187.11 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

T#:567679

Part#: 11287582946KT4

Ships in 1 day

$ 213.63 USD

Add to Wish List

Qty

$ 213.63 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

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

T#:22163422

Part#: 11287568247TKT

Ships on Nov 12, 2026

Sale - Save 15% $ 209.99

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

$ 178.94 USD

Add to Wish List

Qty

Sale - Save 15%

$ 209.99

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

$ 178.94 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

Lower Idler Pulley

10X Entries Into Our F80 M3 Sweepstakes

T#:32350850

Part#: 11287557851

In Stock

Sale - Save 15% $ 27.99

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

$ 23.79 USD

Add to Wish List

Qty

Sale - Save 15%

$ 27.99

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

$ 23.79 USD

Add to Wish List

OEM Accessory Belt Service Kit - F3X F10 N20 2.0L

10X Entries Into Our F80 M3 Sweepstakes

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 Tensioner Assembly

10X Entries Into Our F80 M3 Sweepstakes

T#:32350851

Part#: 11288604266

In Stock

Sale - Save 7% $ 51.99

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

$ 48.59 USD

Add to Wish List

Qty

Sale - Save 7%

$ 51.99

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

$ 48.59 USD

Add to Wish List

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

10X Entries Into Our F80 M3 Sweepstakes

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

Mechanical A/C Belt Tensioner Assembly

10X Entries Into Our F80 M3 Sweepstakes

T#:26305100

Part#: 11281433571

In Stock

Sale - Save 21% $ 59.99

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

$ 47.32 USD

Add to Wish List

Qty

Sale - Save 21%

$ 59.99

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

$ 47.32 USD

Add to Wish List

Accessory Belt Tensioner - Mechanical

10X Entries Into Our F80 M3 Sweepstakes

T#:32450133

Part#: 11288570439

In Stock

Sale - Save 20% $ 93.99

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

$ 75.06 USD

Add to Wish List

Qty

Sale - Save 20%

$ 93.99

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

$ 75.06 USD

Add to Wish List

Upper Idler Pulley

10X Entries Into Our F80 M3 Sweepstakes

T#:26305073

Part#: 11287556251

In Stock

Sale - Save 25% $ 31.99

This product was last offered at the strikethrough price on
07-14-2026

$ 23.99 USD

Add to Wish List

Qty

Sale - Save 25%

$ 31.99

This product was last offered at the strikethrough price on
07-14-2026

$ 23.99 USD

Add to Wish List

Accessory Belt Tensioner Assembly

10X Entries Into Our F80 M3 Sweepstakes

T#:29101657

Part#: 11287563927

In Stock

Sale - Save 17% $ 69.99

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

$ 57.79 USD

Add to Wish List

Qty

Sale - Save 17%

$ 69.99

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

$ 57.79 USD

Add to Wish List

Deflection Pulley

10X Entries Into Our F80 M3 Sweepstakes

T#:34080699

Part#: 11287578674

In Stock

Sale - Save 21% $ 28.99

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

$ 22.84 USD

Add to Wish List

Qty

Sale - Save 21%

$ 28.99

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

$ 22.84 USD

Add to Wish List

N54 AC Delete Accessory Belt Kit - BMW N54 3.0L

10X Entries Into Our F80 M3 Sweepstakes

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

T#:22097555

Part#: 11287618848TKT

Ships on Nov 12, 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

Deflection Pulley

10X Entries Into Our F80 M3 Sweepstakes

T#:32450136

Part#: 11288673720

In Stock

Sale - Save 10% $ 27.99

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

$ 25.19 USD

Add to Wish List

Qty

Sale - Save 10%

$ 27.99

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

$ 25.19 USD

Add to Wish List

Bremmen Belt Tensioner Assembly -- E60 E61 E70 E82 E88 E9X Z4 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:39497969

Part#: 11287530314

In Stock

Sale - Save 21% $ 54.99

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

$ 43.24 USD

Add to Wish List

Qty

Sale - Save 21%

$ 54.99

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

$ 43.24 USD

Add to Wish List

This tensioner keeps the belt for the alternator, power steering, and air conditioning taut to provide maximum performance of each system.

Mechanical A/C Belt Tensioner Assembly

10X Entries Into Our F80 M3 Sweepstakes

T#:32350880

Part#: 11287512758

In Stock

Sale - Save 15% $ 52.99

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

$ 45.04 USD

Add to Wish List

Qty

Sale - Save 15%

$ 52.99

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

$ 45.04 USD

Add to Wish List

Accessory Belt Tensioner Assembly

10X Entries Into Our F80 M3 Sweepstakes

T#:32350878

Part#: 11287594969

In Stock

Sale - Save 15% $ 47.99

This product was last offered at the strikethrough price on
06-18-2026

$ 40.79 USD

Add to Wish List

Qty

Sale - Save 15%

$ 47.99

This product was last offered at the strikethrough price on
06-18-2026

$ 40.79 USD

Add to Wish List

Belt Tensioner

10X Entries Into Our F80 M3 Sweepstakes

T#:32450132

Part#: 11287549873

In Stock

Sale - Save 20% $ 85.99

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

$ 68.54 USD

Add to Wish List

Qty

Sale - Save 20%

$ 85.99

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

$ 68.54 USD

Add to Wish List

A/C Belt Tensioner - 11281717210

10X Entries Into Our F80 M3 Sweepstakes

T#:36913367

Part#: 11281717210

In Stock

Sale - Save 25% $ 66.99

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

$ 50.00 USD

Add to Wish List

Qty

Sale - Save 25%

$ 66.99

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

$ 50.00 USD

Add to Wish List

Also known as a shock damper, the accessory belt tensioner is used to tension the air conditioning compressor belt. This ensures proper contact with the belt drive pulleys and prevents premature wear from improper tension.

If your belt is wearing prematurely or has excess slack, your belt tensioner may be to blame. Replace it with this high-quality Bremmen Parts tensioner to ensure proper tension and air conditioning functionality.

Show More Show Less

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

10X Entries Into Our F80 M3 Sweepstakes

T#:23482929

Part#: 8PK1478TKT

Ships on Nov 12, 2026

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 - E39 E46 M54 (2002+)

10X Entries Into Our F80 M3 Sweepstakes

T#:401685

Part#: 11287512762KT3

Back Ordered

Sale - Save 5% $ 228.99

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

$ 217.54 USD

Add to Wish List

Qty

Sale - Save 5%

$ 228.99

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

$ 217.54 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 - F22/23 F3X B58...

10X Entries Into Our F80 M3 Sweepstakes

T#:22097533

Part#: 11288613707TKT

Ships on Nov 12, 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

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

10X Entries Into Our F80 M3 Sweepstakes

T#:22163417

Part#: 11287582946TKT

Ships on Nov 12, 2026

Sale - Save 5% $ 223.99

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

$ 212.39 USD

Add to Wish List

Qty

Sale - Save 5%

$ 223.99

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

$ 212.39 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

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

10X Entries Into Our F80 M3 Sweepstakes

T#:29798952

Part#: 11288650740T1KT

Ships on Nov 12, 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

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

10X Entries Into Our F80 M3 Sweepstakes

T#:15710772

Part#: 11281730349-KT

Back Ordered

Sale - Save 1% $ 499.99

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

$ 494.69 USD

Add to Wish List

Qty

Sale - Save 1%

$ 499.99

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

$ 494.69 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

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

10X Entries Into Our F80 M3 Sweepstakes

T#:22130428

Part#: 11281437929TKT

Back Ordered

Sale - Save 8% $ 264.99

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

$ 244.54 USD

Add to Wish List

Qty

Sale - Save 8%

$ 264.99

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

$ 244.54 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

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

10X Entries Into Our F80 M3 Sweepstakes

T#:554446

Part#: M54ACCKT2

Back Ordered

Sale - Save 5% $ 256.99

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

$ 244.82 USD

Add to Wish List

Qty

Sale - Save 5%

$ 256.99

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

$ 244.82 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

Hydraulic Alternator Belt Tensioner Conversion Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15710833

Part#: 11287838797-KT

Back Ordered

Sale - Save 1% $ 165.99

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

$ 163.64 USD

Add to Wish List

Qty

Sale - Save 1%

$ 165.99

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

$ 163.64 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

Idler Pulley

10X Entries Into Our F80 M3 Sweepstakes

T#:34080698

Part#: 11287578675

In Stock

Sale - Save 21% $ 27.99

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

$ 22.02 USD

Add to Wish List

Qty

Sale - Save 21%

$ 27.99

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

$ 22.02 USD

Add to Wish List

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

10X Entries Into Our F80 M3 Sweepstakes

T#:401686

Part#: 11281748131KT2

Back Ordered

Sale - Save 4% $ 272.99

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

$ 260.88 USD

Add to Wish List

Qty

Sale - Save 4%

$ 272.99

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

$ 260.88 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 - BMW E60 N54 3....

10X Entries Into Our F80 M3 Sweepstakes

T#:22163416

Part#: 4485241TKT

Ships on Nov 12, 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

Deflection Pulley - Priced Each

10X Entries Into Our F80 M3 Sweepstakes

T#:32450135

Part#: 11287790448

In Stock

Sale - Save 21% $ 26.99

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

$ 21.24 USD

Add to Wish List

Qty

Sale - Save 21%

$ 26.99

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

$ 21.24 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
Call In, Chat, Or Email, For Best Price! Limited Time Only!

T#:586064

Part#: D561-0002

Ships in 5 Business Days

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

Accessory Belt Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15744006

Part#: 11281469266KT-KT

Back Ordered

Sale - Save 2% $ 236.99

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

$ 233.22 USD

Add to Wish List

Qty

Sale - Save 2%

$ 236.99

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

$ 233.22 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

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

10X Entries Into Our F80 M3 Sweepstakes

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

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

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

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

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes

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

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.

E9X M3 6/2008+ Dinan Underdrive Pulley Kit

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes

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

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

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes

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

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

10X Entries Into Our F80 M3 Sweepstakes

T#:23416570

Part#: 11287792059TKT

Ships in 1 day

Sale - Save 6% $ 240.99

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

$ 226.75 USD

Add to Wish List

Qty

Sale - Save 6%

$ 240.99

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

$ 226.75 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 - E46 M3, Z3M, Z...

10X Entries Into Our F80 M3 Sweepstakes

T#:23482931

Part#: S54KEVACCKT

Back Ordered

Sale - Save 2% $ 333.99

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

$ 327.68 USD

Add to Wish List

Qty

Sale - Save 2%

$ 333.99

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

$ 327.68 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

Belt - Main Drive and A/C Belt Set for Turner Pulley Kit - E60 M5, E6...

10X Entries Into Our F80 M3 Sweepstakes

T#:16580

Part#: E60-M5-UDP-BELTS

Ships in 5 Business Days

Sale - Save 3% $ 49.95

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

$ 48.44 USD

Add to Wish List

Qty

Sale - Save 3%

$ 49.95

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

$ 48.44 USD

Add to Wish List

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

OEM Accessory Belt Service Kit - B46/48 B58

10X Entries Into Our F80 M3 Sweepstakes

T#:587399

Part#: 112886137071ABKT

In Stock

Sale - Save 19% $ 121.99

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

$ 98.77 USD

Add to Wish List

Qty

Sale - Save 19%

$ 121.99

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

$ 98.77 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 - E46 E39 M54 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:23482922

Part#: 4PK863ATKT

Back Ordered

Sale - Save 3% $ 254.99

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

$ 246.93 USD

Add to Wish List

Qty

Sale - Save 3%

$ 254.99

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

$ 246.93 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

Hydraulic Alternator Belt Tensioner Assembly

10X Entries Into Our F80 M3 Sweepstakes

T#:55030822

Part#: 11287838797

Ships on Nov 10, 2026

Sale - Save 10% $ 59.99

This product was last offered at the strikethrough price on
10-08-2026

$ 53.99 USD

Add to Wish List

Qty

Sale - Save 10%

$ 59.99

This product was last offered at the strikethrough price on
10-08-2026

$ 53.99 USD

Add to Wish List

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

10X Entries Into Our F80 M3 Sweepstakes

T#:554445

Part#: M54ACCKT

Back Ordered

Sale - Save 5% $ 249.99

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

$ 238.20 USD

Add to Wish List

Qty

Sale - Save 5%

$ 249.99

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

$ 238.20 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:
09/2002-2006 E53 BMW X5 M54
09/2002-2003 E39 BMW M54
09/2002-2005 E46 BMW M54

Show More Show Less

Project Cars

SELECT YOUR BMW

Sub-Categories

Select Vehicle

Purpose

Category

Brand

Price

Special Offers

Shipping

Narrow Results