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BMW Drive Belts & V-Belts for BMW X Series F15 (2014+)

Your BMW's drive belts are wear items, and will degrade and crack over time. Don't wait until you have a belt failure... don't get stranded! Replacing your BMW's belts, such as the alternator belt, power steering belt, air conditioning AC belt, or serpentine belt is a low cost insurance policy to preventing a break down -- or worse, engine damage. We recommend checking your belts every 10,000 miles. If your belts have excessive cracks, dry rot, missing teeth and/or grooves, are cause noise, it's time for new ones.

While also inspecting your serpentine belts, also check for wear or resistance in the pulleys. The tensioner pulley and deflection pulley are the primary sources for belt squealing. The rubber-isolated pulleys can also break apart, leading to total belt failure. We sell the tensioner and deflection pulleys for the M50 engine family used in the E34, E36, E39, E46, X5, Z3, and Z4.

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OEM Accessory Belt Service Kit - F10 F12 F13 F15 F16 F01 F02 ...

For vehicles with dynamic or adaptive drive

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

T#:554454

Part#: N55BMWKT

In Stock

Sale - Save 9% $ 200.99

This product was last offered at the strikethrough price on
06-09-2026

$ 182.89 USD

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Sale - Save 9%

$ 200.99

This product was last offered at the strikethrough price on
06-09-2026

$ 182.89 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

For vehicles with dynamic or adaptive drive

Fits the following BMWs:
F01/02 BMW 740i/Li/Li xDrive
F10 BMW 535i/i xDrive
F12/3 BMW 640i/i xDrive
F15 BMW X5 s/xDrive35i
F16 BMW X6 s/xDrive35i

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - F07/10 F06/12/...

For vehicles with dynamic or adaptive drive

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

T#:23482929

Part#: 8PK1478TKT

In Stock

Sale - Save 23% $ 167.99

This product was last offered at the strikethrough price on
05-03-2026

$ 129.72 USD

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Qty

Sale - Save 23%

$ 167.99

This product was last offered at the strikethrough price on
05-03-2026

$ 129.72 USD

Add to Wish List

Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, tensioner assembly, and new pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - BMW N47 N57 ...

For vehicles without Active Steering or Adaptive/Dynamic Suspension

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

T#:23516116

Part#: 6PK1697TKT

Ships on Oct 27, 2026

$ 206.99 USD

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$ 206.99 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belt, tensioner assembly, and new tensioner bolts. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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A/C Belt Replacement Kit With Service Tools - F Chassis

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

T#:41661238

Part#: 11287631825TKT

In Stock

$ 40.99 USD

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$ 40.99 USD

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Maintain peak performance of your BMW’s climate control system with the A/C Belt Replacement Kit With Service Tools - F Chassis, trusted by enthusiasts and technicians for its fit, quality, and ease of use.

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OEM Febi Accessory Belt Tensioner Assembly - BMW N20 2.0L

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

T#:38419107

Part#: 11287594969

In Stock at Vendor

$ 75.99 USD

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$ 75.99 USD

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This is the main belt tensioner for the accessory belt.

BMW idler pulley

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

T#:38385319

Part#: 11287589886

Special Order: No Guaranteed ETA

$ 63.99 USD

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$ 63.99 USD

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If your accessory belt idler pulley shows signs of excessive wear—such as wobbling, grinding, or squealing from a failing bearing—it should be replaced before it leads to belt failure. When replacing your idler pulley, it's a good time to inspect other belt drive components like the tensioner and belt for wear. Turner Motorsports offers a full selection of belts, tensioners, pulleys, and related hardware to keep your BMW’s belt drive system running smoothly.

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