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BMW 335i Engine Pulley Parts

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Accessory Belt Tensioner Assembly

ES#4830507 - 11288604266 - Accessory Belt Tensioner Assembly - This is the main belt tensioner for A/C, power steering and alternator - Bremmen Parts - BMW

This is the main belt tensioner for A/C, power steering and alternator 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4830507
Mfg#:
11288604266
In Stock
ON SALE!
$51.99

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

$48.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N55 "Bulletproof" Crank Kit

ES#4365386 - ECSf30n55bpKT - N55 "Bulletproof" Crank Kit - .or at least as "Bulletproof" as your F3X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. - Assembled By ECS - BMW

...or at least as "Bulletproof" as your F3X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4365386
Mfg#:
ECSF30N55BPKT
In Stock
ON SALE!
$510.99

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

$478.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Accessory Belt - Alternator/AC/Power Steering Belt

ES#2800503 - 11287628661 - Accessory Belt - Alternator/AC/Power Steering Belt - Keep your A/C system operating properly. - Continental - BMW
ECS Tuning recommends this product.

Keep your A/C system operating properly. We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2800503
Mfg#:
11287628661
In Stock
$51.48

This product was last offered at the strikethrough price on
02-17-2026

$37.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Belt - N55 E Chassis/ N54 E61 E84

ES#4485241 - 7pk1860 - Performance Kevlar Reinforced Belt - N55 E Chassis/ N54 E61 E84 - 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. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4485241
Mfg#:
7PK1860
In Stock
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Vibration Damper

ES#4781517 - 11237573655 - Crankshaft Vibration Damper - Also referred to as a harmonic balancer - URO - BMW

Also referred to as a harmonic balancer 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4781517
Mfg#:
11237573655
In Stock
$341.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Belt - N55 F Chassis

ES#4485242 - 8pk1390 - Performance Kevlar Reinforced Belt - N55 F Chassis - 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. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4485242
Mfg#:
8PK1390
In Stock
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54 "Bulletproof" Crank Kit

ES#4642990 - ECSN54BPKRKT - N54 "Bulletproof" Crank Kit - .or at least as "Bulletproof" as your N54 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. Featuring Kevlar reinforced belt! - Assembled By ECS - BMW

...or at least as "Bulletproof" as your N54 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. Featuring Kevlar reinforced belt! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4642990
Mfg#:
ECSN54BPKRKT
Ships in 10 Business Days
Auto Notify
ON SALE!
$574.99

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

$541.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

N55 (F-Chassis) Crank Seal Guard & Performance Kevlar-Reinforced Accessory Belt

ES#4876647 - 049453LA01-02KT6 - N55 (F-Chassis) 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!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876647
Mfg#:
049453LA01-02KT6
In Stock
ON SALE! SAVE 46%
$180.99

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

$97.62 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crank Case Fasteners

ES#17488 - 11110392552 - Crank Case Fasteners - Bolts your lower crank case assembly to the upper crank case block. - Genuine BMW - BMW

Bolts your lower crank case assembly to the upper crank case block.

Brand:
Genuine BMW - Corporate Logo
ES#:
17488
Mfg#:
11110392552
In Stock
2% off MSRP

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

$42.99

This product was last offered at the strikethrough price on
07-18-2026

$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54/N55 (E-Chassis) Crank Seal Guard & Performance Kevlar-Reinforced Accessory Belt

ES#4876650 - 049453LA01-02KT7 - N54/N55 (E-Chassis) 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!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876650
Mfg#:
049453LA01-02KT7
In Stock
ON SALE! SAVE 43%
$178.98

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

$101.21 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N55 "Bulletproof" Crank Kit

ES#4660307 - ECSF30N55BP540KT - N55 "Bulletproof" Crank Kit - .or at least as "Bulletproof" as your F3X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. - Assembled By ECS - BMW

...or at least as "Bulletproof" as your F3X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. 10X Entries For Our 25th Anniversary Sweepstakes!
Includes 5w-40 oil which is a slighty higher viscosity than recommended by BMW - great for performance ap

Brand:
Assembled By ECS - Corporate Logo
ES#:
4660307
Mfg#:
ECSF30N55BP540KT
In Stock
ON SALE!
$503.99

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

$470.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

VAC V2 Harmonic SuperDamper By ATI - N54

ES#4335469 - VAC-HPCD-N54 - VAC V2 Harmonic SuperDamper By ATI - N54 - Isolate harmonics before they can destroy your engine - The Updated V2 VAC Motorsports Harmonic Damper is capable of 9,500 RPM - ATI Performance Products - BMW

Isolate harmonics before they can destroy your engine - The Updated V2 VAC Motorsports Harmonic Damper is capable of 9,500 RPM

Brand:
ATI Performance Products - Corporate Logo
ES#:
4335469
Mfg#:
VAC-HPCD-N54
Ships in 8 Business Days
$1059.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Power Steering Pulley - Priced Each

ES#4019981 - 32427553955PRM - Aluminum Power Steering Pulley - Priced Each - Replacement pulley for the power steering system - URO Premium - BMW
ECS Tuning recommends this product.

Replacement pulley for the power steering system 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO Premium - Corporate Logo
ES#:
4019981
Mfg#:
32427553955PRM
Ships in 1 Business Day
$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#2562556 - 11287568247 - Accessory Belt - Drives power steering pump, alternator and A/C compressor - Continental - BMW
ECS Tuning recommends this product.

Drives power steering pump, alternator and A/C compressor We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2562556
Mfg#:
11287568247
Back Ordered
$36.44

This product was last offered at the strikethrough price on
04-28-2026

$33.17 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#3184303 - 11288673720 - Idler Pulley - Directs the accessory serpentine belt. - Ina - BMW
ECS Tuning recommends this product.

Directs the accessory serpentine belt. We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3184303
Mfg#:
11288673720
In Stock
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N55 "Bulletproof" Crank Kit

ES#4642986 - ECSEN55BPKRKT - N55 "Bulletproof" Crank Kit - .or at least as "Bulletproof" as your E9X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. Featuring Kevlar reinforced belt! - Assembled By ECS - BMW

...or at least as "Bulletproof" as your E9X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. Featuring Kevlar reinforced belt! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4642986
Mfg#:
ECSEN55BPKRKT
In Stock
ON SALE!
$588.99

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

$581.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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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