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BMW 335i Engine Drive Belt Parts

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N55 "Bulletproof" Crank Kit

ES#4365385 - ECSe90n55bpKT - 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. - 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. 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#:
4365385
Mfg#:
ECSE90N55BPKT
In Stock
ON SALE!
$573.99

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

$557.86 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Idler Pulley

ES#4845404 - 11287578675 - Idler Pulley - An important belt drive component - Bremmen Parts - BMW

An important belt drive component affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4845404
Mfg#:
11287578675
In Stock
ON SALE! SAVE 21%
$27.99

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

$22.02 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Deflection Pulley

ES#4845406 - 11287578674 - Deflection Pulley - A/C belt idler pulley - Bremmen Parts - BMW

A/C belt idler pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4845406
Mfg#:
11287578674
In Stock
ON SALE! SAVE 21%
$28.99

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

$22.84 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ASA-BOLT - Priced Each

ES#2641280 - 07129905738 - ASA-BOLT - Priced Each - M10X35 - Genuine BMW - BMW

M10X35 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2641280
Mfg#:
07129905738
In Stock
16% off MSRP

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

$9.69

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

$8.15 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Idler Pulley

ES#21769 - 11287556251 - Upper Idler Pulley - The higher idler pulley - Genuine BMW - BMW

The higher idler pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21769
Mfg#:
11287556251
Ships in 1-2 days
12% off MSRP

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

$82.24

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

$71.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Upper Idler Pulley

ES#3451040 - 11287556251 - Upper Idler Pulley - The higher idler pulley - URO - BMW

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

Brand:
URO - Corporate Logo
ES#:
3451040
Mfg#:
11287556251
In Stock
$28.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#4759324 - 11288673720 - Idler Pulley - Directs the accessory serpentine belt. - URO - BMW

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

Brand:
URO - Corporate Logo
ES#:
4759324
Mfg#:
11288673720
Ships in 2 Business Days
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Idler Pulley

ES#21772 - 11287557851 - Lower Idler Pulley - The lowest of the idler pulleys on the accessory drive belt. - Genuine BMW - BMW

The lowest of the idler pulleys on the accessory drive belt. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21772
Mfg#:
11287557851
In Stock
12% off MSRP

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

$82.99

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

$72.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Washer - Priced Each

ES#20551 - 11237557561 - Washer - Priced Each - Hardware for drive belt assembly - Genuine BMW - BMW

Hardware for drive belt assembly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
20551
Mfg#:
11237557561
Ships in 1-2 days
9% off MSRP

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

$21.99

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

$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vibration Damper - Priced Each

ES#2159205 - 11237574827 - Vibration Damper - Priced Each - For Drive belt Pulley - Genuine BMW - BMW

For Drive belt Pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2159205
Mfg#:
11237574827
Ships in 1-2 days
9% off MSRP

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

$104.99

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

$95.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#2079663 - 11287582946 - Accessory Belt Tensioner Assembly - Mechanical belt tensioner for the A/C and power steering system - Genuine BMW - BMW

Mechanical belt tensioner for the A/C and power steering system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2079663
Mfg#:
11287582946
Ships in 1-2 days
9% 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
06-02-2026

$163.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#5376079 - 11287582946 - Accessory Belt Tensioner Assembly - Mechanical belt tensioner for the A/C and power steering system - Hamburg Tech - BMW

Mechanical belt tensioner for the A/C and power steering system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hamburg Tech - Corporate Logo
ES#:
5376079
Mfg#:
11287582946
Ships in 2 Business Days
$83.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A/C Deflection Pulley

ES#4879311 - 11287578674 - A/C Deflection Pulley - A/C belt idler pulley - URO - BMW

A/C belt idler pulley 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!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4879311
Mfg#:
11287578674
In Stock
Limited Qty Sale
$25.99

This product was last offered at the strikethrough price on
05-18-2026

$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multi Rib Serpentine Belt

ES#4027414 - 7pk1660 - Multi Rib Serpentine Belt - OE Equivalent for N54 Engine - Mitsuboshi - BMW

OE Equivalent for N54 Engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mitsuboshi - Corporate Logo
ES#:
4027414
Mfg#:
7PK1660
Ships in 5 Business Days
$65.92 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Idler Pulley

ES#2978865 - 11287557851 - Lower Idler Pulley - The lowest of the idler pulleys on the accessory drive belt. Featuring NTN/NSK bearing. - URO - BMW

The lowest of the idler pulleys on the accessory drive belt. Featuring NTN/NSK bearing. 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!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2978865
Mfg#:
11287557851
Ships in 2 Business Days
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Protection Cap

ES#21792 - 11287795159 - Protection Cap - Used to cover the securing bolt - Genuine BMW - BMW

Used to cover the securing bolt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21792
Mfg#:
11287795159
Ships in 1-2 days
$6.99

This product was last offered at the strikethrough price on
03-04-2026

$2.99 USD
Free Shipping
on orders $49 and up
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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