BMW E39 Alternator Belt Tensioners

For BMW owners seeking reliability and factory-spec performance, the OEM INA Accessory Belt Idler Pulley from ECS Tuning delivers unmatched value and durability. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission only with production date from 05/1999

Brand:

ES#:

4920273

Mfg#:

FP02931

$32.99 USD

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on orders $49 and up

Lifetime Replacement

Make sure your new belt has proper tension affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 08/1997

Brand:

ES#:

21679

Mfg#:

11281742013

3% off MSRP

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

$368.99

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

$356.99 USD

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Lifetime Replacement

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 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:

ES#:

5480937

Mfg#:

11287838797

$59.99 USD

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Lifetime Replacement