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BMW E83 X3 M54 3.0L

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BMW E83 X3 M54 3.0L Engine Drive Belt Parts

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Mechanical A/C Belt Tensioner Assembly

ES#4830572 - 11287512758 - Mechanical A/C Belt Tensioner Assembly - Complete tensioner assembly with roller - Bremmen Parts - BMW

Complete tensioner assembly with roller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4830572
Mfg#:
11287512758
In Stock
ON SALE! SAVE 20%
$50.99

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

$40.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechanical A/C Belt Tensioner Assembly

ES#2972821 - 11287512758 - Mechanical A/C Belt Tensioner Assembly - Complete tensioner assembly with roller - URO - BMW

Complete tensioner assembly with roller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2972821
Mfg#:
11287512758
In Stock
$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Roller

ES#21691 - 11281748131 - Hydraulic Alternator Belt Tensioner Roller - Replacement is recommend with every belt service - Genuine BMW - BMW

Replacement is recommend with every belt service affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21691
Mfg#:
11281748131
In Stock
4% off MSRP

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

$82.54

This product was last offered at the strikethrough price on
06-24-2026

$78.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belt Tensioner Conversion Kit

ES#4164847 - 11287838797K - Belt Tensioner Conversion Kit - Update from a mechanical tensioner to a hydraulic style tensioner - URO - BMW

Update from a mechanical tensioner to a hydraulic style tensioner affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4164847
Mfg#:
11287838797K
Back Ordered
Auto Notify
$82.99

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

$65.99 USD
Free Shipping
on orders $49 and up

Fillister Head Screw - M10x25mm

ES#16139 - 07129905534 - Fillister Head Screw - M10x25mm - Secures roller to hydraulic alternator belt tensioner assembly - Genuine BMW - BMW

Secures roller to hydraulic alternator belt tensioner assembly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
16139
Mfg#:
07129905534
In Stock
$4.09

This product was last offered at the strikethrough price on
01-07-2026

$4.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechanical Alternator Belt Tensioner Assembly

ES#3673292 - 11281427252 - Mechanical Alternator Belt Tensioner Assembly - Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller. - Bremmen Parts - BMW

Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
3673292
Mfg#:
11281427252
In Stock
ON SALE! SAVE 10%
$41.99

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

$37.63 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Drive Belt Pulley Cap

ES#4316566 - 11281727159 - Drive Belt Pulley Cap - Replace that missing protective cap and protect your belt tensioner bearing from debris. - URO - BMW

Replace that missing protective cap and protect your belt tensioner bearing from debris. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4316566
Mfg#:
11281727159
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt - Alternator/Water Pump/Power Steering Belt

ES#2678566 - 11287636379 - Accessory Belt - Alternator/Water Pump/Power Steering Belt - Drives critical components - Genuine BMW - BMW

Drives critical components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2678566
Mfg#:
11287636379
Ships in 1 day
10% off MSRP

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

$69.99

This product was last offered at the strikethrough price on
06-24-2026

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner

ES#21655 - 11281717188 - Hydraulic Alternator Belt Tensioner - Hydraulic tensioner for alternator belt, ideal for servicing high mileage tensioner - Genuine BMW - BMW

Hydraulic tensioner for alternator belt, ideal for servicing high mileage tensioner affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21655
Mfg#:
11281717188
Ships in 1 day
7% off MSRP

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

$165.99

This product was last offered at the strikethrough price on
06-24-2026

$154.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Assembly

ES#21813 - 11287838797 - Hydraulic Alternator Belt Tensioner Assembly - Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley - Genuine BMW - BMW

Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21813
Mfg#:
11287838797
Ships in 1 day
7% off MSRP

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

$304.99

This product was last offered at the strikethrough price on
06-24-2026

$284.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Accessory Belt Kit - Kevlar Reinforced

ES#4736840 - 4PK863BKT - Performance Accessory Belt Kit - Kevlar Reinforced - Utilizes high quality components and our performance Kevlar reinforced belts - Assembled By ECS - BMW

Utilizes high quality components and our performance Kevlar reinforced belts 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#:
4736840
Mfg#:
4PK863BKT
Ships on Aug 24, 2026
Auto Notify
ON SALE!
$283.99

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

$279.92 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Roller

ES#2534799 - 11281748131 - Hydraulic Alternator Belt Tensioner Roller - Replacement is recommend with every belt service - URO - BMW

Replacement is recommend with every belt service affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534799
Mfg#:
11281748131
In Stock
$14.83

This product was last offered at the strikethrough price on
04-06-2026

$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Protection Ring

ES#21663 - 11281730532 - Protection Ring - Seals the back side of the hydraulic alternator belt tensioner roller from debris - Genuine BMW - BMW

Seals the back side of the hydraulic alternator belt tensioner roller from debris affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21663
Mfg#:
11281730532
In Stock
$3.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Service Kit

ES#2784774 - 11287838797KT4 - Accessory Belt Service Kit - Utilizes high quality aftermarket components - Assembled By ECS - BMW

Utilizes high quality aftermarket 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#:
2784774
Mfg#:
11287838797KT4
Ships on Jul 16, 2026
Auto Notify
ON SALE!
$266.99

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

$259.47 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mechanical A/C Belt Tensioner Assembly

ES#21722 - 11287512758 - Mechanical A/C Belt Tensioner Assembly - Complete tensioner assembly with roller - Genuine BMW - BMW

Complete tensioner assembly with roller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21722
Mfg#:
11287512758
Ships in 1 day
4% off MSRP

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

$229.99

This product was last offered at the strikethrough price on
06-24-2026

$220.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Roller

ES#2776538 - 11281748131 - Hydraulic Alternator Belt Tensioner Roller - Replacement is recommend with every belt service - Vaico - BMW

Replacement is recommend with every belt service affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2776538
Mfg#:
11281748131
In Stock
$30.99

This product was last offered at the strikethrough price on
05-07-2026

$17.99 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.

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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