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BMW 335i Engine Drive Belt Parts

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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

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

Basic Accessory Belt Service Kit

ES#3486401 - YC0E - Basic Accessory Belt Service Kit - Includes belt, tensioner and idler pulley - Genuine BMW - BMW

Includes belt, tensioner and idler pulley

Brand:
Genuine BMW - Corporate Logo
ES#:
3486401
Mfg#:
11282457049
In Stock
6% off MSRP

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

$280.99

This product was last offered at the strikethrough price on
07-20-2026

$264.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Schwaben BMW Belt Tensioner Tool

ES#3136158 - 020023SCH01A - Schwaben BMW Belt Tensioner Tool - Much easier than using a T60 Torx socket! A must have for belt service on N54/N55 engines. - Schwaben - BMW
ECS Tuning recommends this product.

Much easier than using a T60 Torx socket! A must have for belt service on N54/N55 engines. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Schwaben - Corporate Logo
ES#:
3136158
Mfg#:
020023SCH01A
In Stock
ON SALE! SAVE 25%
$67.99

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

$50.99 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 9 Business Days
Auto Notify
ON SALE!
$574.99

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

$541.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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

$582.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Accessory Belt

ES#2652156 - 11287628653 - Accessory Belt - Drive belt for the A/C and power steering - Continental - BMW

Drive belt for the A/C and power steering We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2652156
Mfg#:
11287628653
In Stock
$51.99

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

$31.99 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

$470.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

N54 AC Delete Kit

ES#4045332 - n54acdltKT - N54 AC Delete Kit - Includes new idler pulley and shorter belt for deleting your AC compressor - Assembled By ECS - BMW

Includes new idler pulley and shorter belt for deleting your AC compressor 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4045332
Mfg#:
N54ACDLTKT
In Stock
ON SALE! SAVE 18%
$78.99

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

$64.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#2228184 - 11287628652 - Accessory Belt - Drives power steering pump, alternator and A/C compressor - Genuine BMW - BMW

Drives power steering pump, alternator and A/C compressor

Brand:
Genuine BMW - Corporate Logo
ES#:
2228184
Mfg#:
11287628652
In Stock
8% off MSRP

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

$63.99

This product was last offered at the strikethrough price on
07-20-2026

$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crank Bolt Capture Plate - BMW N55, S55

ES#5396565 - 034-113-Z016 - Crank Bolt Capture Plate - BMW N55, S55 - Don't slip your crank hub! Replace the factory crank bolt capture plate with this upgraded motorsport grade plate. - 034Motorsport - BMW

Don't slip your crank hub! Replace the factory crank bolt capture plate with this upgraded motorsport grade plate.

Brand:
034Motorsport - Corporate Logo
ES#:
5396565
Mfg#:
034-113-Z016
In Stock
$78.00 USD
Free Shipping

Deflection Pulley

ES#4830650 - 11288673720 - Deflection Pulley - Directs the accessory serpentine belt. - Bremmen Parts - BMW

Directs the accessory serpentine belt. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4830650
Mfg#:
11288673720
In Stock
ON SALE! SAVE 10%
$27.99

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

$25.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Idler Pulley

ES#2593863 - 11287556251 - Upper Idler Pulley - The higher idler pulley - Ina - BMW
ECS Tuning recommends this product.

The higher idler pulley We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2593863
Mfg#:
11287556251
In Stock
$41.86

This product was last offered at the strikethrough price on
03-25-2026

$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#2714083 - 11288604266 - Accessory Belt Tensioner Assembly - This is the main belt tensioner for A/C, power steering and alternator - Genuine BMW - BMW

This is the main belt tensioner for A/C, power steering and alternator

Brand:
Genuine BMW - Corporate Logo
ES#:
2714083
Mfg#:
11288604266
Ships in 4 Business Days
6% off MSRP

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

$179.99

This product was last offered at the strikethrough price on
07-20-2026

$168.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Drive Belt Parts

Drive belts transfer crankshaft power to various accessories, including the alternator, water pump, power steering pump, and air conditioning compressor. Replacement of drive belts, serpentine belts, and drive belt tensioners at recommended service intervals helps you avoid untimely breakdowns and expensive vehicle repairs.

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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