BMW Drive Belts & V-Belts for BMW X Series E71 (2008-2014)

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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 INA Accessory Belt Tensioner Assembly - N55 S55
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Ina - Corporate Logo
T#:394063
Part#: 11288604266
In Stock
$ 79.99

This product was last offered at the strikethrough price on
06-08-2026

$ 60.99 USD
Free Shipping on orders $49 and up
$ 60.99 USD
Free Shipping on orders $49 and up

Pulleys begin to squeak once they are reaching the end of their life span and the tensioners can fail, no longer applying enough tension to the accessory belt. If not replaced, tese can seize up and lead to a long host of problems that would leave you stranded on the side of the road. Prevent this with routine maintenance and replace your belts and pulleys every 50,000 miles to ensure continued reliability.

Fits the following BMW chassis:
F22/23 F87 F3X F07/10/11 F06/12/13 F01/02 F25/26 E70/71 F15/16

Fits the following BMW engines:
N55 3.0L, S65 3.0L

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Enthusiast Bundles - Corporate Logo
T#:37419777
Part#: 049453LA01-02KT8
Ships in 7 Business Days
Sale - Save 47% $ 170.99

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

$ 91.08 USD
Free Shipping on orders $49 and up
Sale - Save 47%
$ 170.99

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

$ 91.08 USD
Free Shipping on orders $49 and up

Enthusiast Bundle: Turner Motorsport Crank Seal Guard with ECS Kevlar-Reinforced Belt

Protect your N5X/S55 from catastrophic failure with this must-have upgrade!

The Turner Motorsport Crank Seal Guard is meticulously designed to safeguard your engine’s crank seal from potential damage caused by a shredded serpentine belt. Oil or coolant leaks can lead to accessory belt slippage, fraying, and tearing, which can send belt debris behind the harmonic balancer and into the crank seal, risking serious engine damage.

Key Benefits:

Shields crank seal from accessory belt debris, preventing engine failure Custom-fit for N54/N55/S55 engines Zinc-coated fasteners for superior corrosion resistance Durable 6061 billet aluminum construction, with Turner blue anodized finish for added strength and style Cutting-Edge Design:

Designed using FARO laser scanning and Solidworks CAD for precision fitment Rigorous testing ensures reliable protection in all conditions Easily installs with 2 securing bolts torqued to 20Nm ECS Performance Kevlar-Reinforced Accessory Belt:

Reduced elongation for consistent performance over time Enhanced shock and impact resistance Superior oil and temperature resistance tested to JASO E 109-94 and SAE J2432 standards Ensure long-term engine health and peace of mind with the Turner Motorsport Crank Seal Guard and ECS Kevlar-Reinforced Accessory Belt combo. Prevent the "when, not if" risk of belt-related engine failure today!

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Packaged by Turner - Corporate Logo
T#:554448
Part#: N54ACCKT
In Stock
Sale - Save 15% $ 197.99

This product was last offered at the strikethrough price on
04-15-2026

$ 169.24 USD
Free Shipping
Sale - Save 15%
$ 197.99

This product was last offered at the strikethrough price on
04-15-2026

$ 169.24 USD
Free Shipping
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 overheated 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.
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OEM INA Deflection Pulley - N55 3.0L, S55 3.0L
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:554453
Part#: 11288673720
In Stock
$ 45.99 USD
Free Shipping on orders $49 and up
Pulleys begin to squeak once they are reaching the end of their life span and if not replaced, can seize up and lead to a long host of problems that would leave you stranded on the side of the road.

OEM INA Idler Pulley -- N55
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:402395
Part#: 11287615130
In Stock
$ 35.34

This product was last offered at the strikethrough price on
05-06-2026

$ 24.99 USD
Free Shipping on orders $49 and up
$ 24.99 USD
Free Shipping on orders $49 and up

This is an OEM INA Idler Pulley, also known as the roller pulley or deflection pulley. The idler pulleys are known to be the primary sources for 'belt squealing'. The pulley is also encased in rubber which will crack over time. If left without service the rubber could fail completely, chucking the belt and leaving you stranded. Replacement is a very simple procedure and can be done anytime the fan is off the engine (belt replacement, water pump service, alternator replacement, etc).

 OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMW Chassis:
E70,E71,F06,F07,F10,F12,F13,F15,F16,F01,F02,

Fits BMW Engines including:
N55

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Packaged by Turner - Corporate Logo
T#:23516122
Part#: 11287631824TKT
In Stock
$ 220.99 USD
Free Shipping on orders $49 and up
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, replacement A/C belt, and a new tensioner. 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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Packaged by Turner - Corporate Logo
T#:41661238
Part#: 11287631825TKT
Ships in 2 Business Days
$ 40.99 USD
Free Shipping on orders $49 and up
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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Deflection Pulley
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:593550
Part#: 11288604267
Special Order: No Guaranteed ETA
$ 49.48 USD
$ 49.48 USD