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BMW 335i Engine Pulley Parts

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N52/N54/N55/S55 Crank Seal Guard

ES#4674312 - 049453LA01-02 - N52/N54/N55/S55 Crank Seal Guard - You can't put a price on piece of mind. A simple bolt on solution to keep your engine safe from catastrophic failure. - Turner Motorsport - BMW

You can't put a price on piece of mind. A simple bolt on solution to keep your engine safe from catastrophic failure. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4674312
Mfg#:
049453LA01-02
In Stock
ON SALE! SAVE 40%
$129.99

This product was last offered at the strikethrough price on
05-02-2026

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

New Alternator - 180amp

ES#4759696 - 12317558220 - New Alternator - 180amp - Brand new, not remanufactured. No core charge! - Bavarian Autosport - BMW

Brand new, not remanufactured. No core charge! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4759696
Mfg#:
12317558220
In Stock
ON SALE! SAVE 10%
$291.99

This product was last offered at the strikethrough price on
05-02-2026

$262.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Accessory Belt Kit - Kevlar Reinforced

ES#4636403 - 11287568247KBKT - Performance Accessory Belt Kit - Kevlar Reinforced - Utilizes high quality components and our performance Kevlar reinforced belt - Assembled By ECS - BMW
ECS Tuning recommends this product.

Utilizes high quality components and our performance Kevlar reinforced belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4636403
Mfg#:
11287568247KBKT
In Stock
ON SALE! SAVE 19%
$169.99

This product was last offered at the strikethrough price on
05-02-2026

$138.37 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Service Kit

ES#3160979 - 11287628661KT - Accessory Belt Service Kit - Includes belt, tensioner and idler pulley - Assembled By ECS - BMW

Includes belt, tensioner and idler pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3160979
Mfg#:
11287628661KT
Ships in 9 Business Days
Auto Notify
ON SALE!
$128.99

This product was last offered at the strikethrough price on
01-03-2026

$116.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Accessory Belt Kit - Kevlar Reinforced

ES#4636405 - 11287582946KBKT - Performance Accessory Belt Kit - Kevlar Reinforced - Utilizes high quality components and our performance Kevlar reinforced belt. Includes idlers and tensioner assembly. - Assembled By ECS - BMW

Utilizes high quality components and our performance Kevlar reinforced belt. Includes idlers and tensioner assembly. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4636405
Mfg#:
11287582946KBKT
In Stock
ON SALE!
$208.99

This product was last offered at the strikethrough price on
01-26-2026

$193.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Accessory Belt Kit - Kevlar Reinforced

ES#4636406 - 11287628661KBKT - Performance Accessory Belt Kit - Kevlar Reinforced - Utilizes high quality components and our performance Kevlar reinforced belt - Assembled By ECS - BMW

Utilizes high quality components and our performance Kevlar reinforced belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4636406
Mfg#:
11287628661KBKT
Ships in 9 Business Days
Auto Notify
ON SALE!
$130.99

This product was last offered at the strikethrough price on
05-02-2026

$129.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW N54 Accessory Belt Kit

ES#2581868 - N54ACBELTKT - BMW N54 Accessory Belt Kit - Everything you need to service your belt drive system including all high-quality, German-made components - Assembled By ECS - BMW

Everything you need to service your belt drive system including all high-quality, German-made components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2581868
Mfg#:
N54ACBELTKT
In Stock
ON SALE! SAVE 15%
$224.99

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

$192.18 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMW N55 Accessory Belt Kit

ES#2713375 - 11287582946KT2 - BMW N55 Accessory Belt Kit - Everything you need to service your belt drive system - featuring all original equipment parts from INA and Continental! - Assembled By ECS - BMW

Everything you need to service your belt drive system - featuring all original equipment parts from INA and Continental! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2713375
Mfg#:
11287582946KT2
In Stock
ON SALE! SAVE 13%
$212.99

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

$185.23 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N54/N55/S55 Billet Crank Seal Guard

ES#4315842 - VTT-CRANKGUARD - N54/N55/S55 Billet Crank Seal Guard - Prevent your sepentine belt from being sucked into your engine! - Vargas Turbo Technologies - BMW

Prevent your sepentine belt from being sucked into your engine! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4315842
Mfg#:
VTT-CRANKGUARD
In Stock
Starting at $84.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Belt - N54

ES#4485240 - 7pk1855 - Performance Kevlar Reinforced Belt - N54 - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - BMW
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4485240
Mfg#:
7PK1855
In Stock
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#3134113 - 11288604266 - Accessory Belt Tensioner Assembly - This is the main belt tensioner for A/C, power steering and alternator - Ina - BMW
ECS Tuning recommends this product.

This is the main belt tensioner for A/C, power steering and alternator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3134113
Mfg#:
11288604266
In Stock
$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#4810167 - 11287563927 - Accessory Belt Tensioner Assembly - This is the main belt tensioner for A/C, Alternator, and power steering. - Bremmen Parts - BMW

This is the main belt tensioner for A/C, Alternator, and power steering. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4810167
Mfg#:
11287563927
In Stock
ON SALE! SAVE 17%
$69.99

This product was last offered at the strikethrough price on
05-02-2026

$57.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ASA Bolt - M8x16

ES#20555 - 11237564511 - ASA Bolt - M8x16 - Crankshaft pulley bolt, 6 required per vehicle - Genuine BMW - BMW

Crankshaft pulley bolt, 6 required per vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
20555
Mfg#:
11237564511
In Stock
7% off MSRP

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

$18.28

This product was last offered at the strikethrough price on
06-02-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#2580613 - 11287563927 - Accessory Belt Tensioner Assembly - This is the main belt tensioner for A/C, Alternator, and power steering. - Ina - BMW
ECS Tuning recommends this product.

This is the main belt tensioner for A/C, Alternator, and power steering. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2580613
Mfg#:
11287563927
In Stock
$107.99

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

$71.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#3131376 - 11287582946 - Accessory Belt Tensioner Assembly - Mechanical belt tensioner for the A/C and power steering system - Ina - BMW
ECS Tuning recommends this product.

Mechanical belt tensioner for the A/C and power steering system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3131376
Mfg#:
11287582946
In Stock
$95.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N54 Crank Seal Guard & Performance Kevlar-Reinforced Accessory Belt

ES#4876652 - 049453LA01-02KT8 - N54 Crank Seal Guard & Performance Kevlar-Reinforced Accessory Belt - Protect your engine from catastrophic damage and upgrade your accessory belt with this Enthusiast Bundle! - Enthusiast Bundles - BMW

Protect your engine from catastrophic damage and upgrade your accessory belt with this Enthusiast Bundle! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876652
Mfg#:
049453LA01-02KT8
In Stock
ON SALE! SAVE 48%
$170.99

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

$89.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Pulley Parts

Pulleys drive accessories essential to vehicle operation. Whether you need to install a stock original equipment pulley during a repair, or improve engine performance and appearance with a lightweight aluminum or underdrive pulley, count on ECS Tuning for pulley solutions that work.

Let us help you find the parts that fit your BMW

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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