Drive Belt Service for BMW X Series E84 (2013-2015)

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Drive belts should be inspected and changed regularly to avoid further complications. We offer Genuine BMW and other aftermarket brands that we trust or know to be OE manufacturers. We like to make it easy on you and do all the research for you - check out our Drive Belt Service kits.

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Crank Seal Guard - N52/N54/N55/S55
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Turner Motorsport - Corporate Logo
T#:15876877
Part#: 049453LA01-02
In Stock
Sale - Save 40% $ 129.99

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

$ 77.99 USD
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Sale - Save 40%
$ 129.99

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

$ 77.99 USD
Free Shipping on orders $49 and up

Introducing our Turner Motorsport Crank Seal Guard – the essential shield for your BMW's engine integrity. Safeguarding the heart of your vehicle, this meticulously designed guard offers robust protection for the crank seal concealed behind the harmonic balancer.

Considered an indispensable maintenance component for your BMW, the Crank Seal Guard acts as a crucial defense against a potential and preventable catastrophe involving your accessory belt. Facing the reality of potential oil or coolant leaks in your engine, this guard becomes a reliable barrier, preventing these fluids from reaching the accessory belt. The consequence of a compromised belt includes walking, slipping, fraying, and rubber particles finding their way behind the harmonic balancer and into the crank seal – a scenario that can lead to severe engine failure.

Let's be honest, engine leaks are a common occurrence, and whether your engine is currently leaking or not, the Crank Seal Guard is a proactive measure against future threats. The wear and tear on the accessory belt due to oil and coolant exposure can result in slipping, tearing, or, worst-case scenario, belt snapping – posing a significant risk to your engine's well-being.

Prepare your car for the long haul and protect the vital components, It's not a matter of "if" but "when" your belt will become a problem, and our Crank Seal Guard is your proactive solution. Rigorously tested on N52/N54/N55 and S55 for 100% confirmed fitment, it stands as a reliable guardian for your engine's health. Invest in the protection your BMW deserves with the Turner Motorsport Crank Seal Guard.

Key benefits:

Protect crank seal from rogue accessory belts and their shredded debris
Optimized to fit N52, N54, N55, and S55 engines
Rigid design that fits within the space constraints between the engine block and harmonic balancer
Zinc-coated fasteners for corrosion and oxidation resistance
Design:

Modeled and designed from FARO laser scanning and Solidworks CAD
Manufactured from 6061 billet aluminum
Turner blue anodizing
Installation:

It is a good idea to note how your belt is routed before starting the installation.

2 securing bolts for crank seal guard - Torque value of 20Nm

You will find either 6 or 8 E10 bolts are holding the harmonic balancer depending on the engine.

E10 (P#11237564511) ​
​N52: 6 bolts - Torque value of 25nm
N54: 6 bolts - Torque value of 35nm
N55: 8 bolts - Torque value of 35nm

E10 (P#11237575488)
S55: 8 Bolts - Torque value of 35nm

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Crank Seal Guard & Performance Kevlar-Reinforced Accessory Belt -...
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Enthusiast Bundles - Corporate Logo
T#:37419776
Part#: 049453LA01-02KT7
In Stock
Sale - Save 45% $ 178.98

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

$ 99.00 USD
Free Shipping on orders $49 and up
Sale - Save 45%
$ 178.98

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

$ 99.00 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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OEM Continental Serpentine Belt - E90 E92 E82 E60 E84
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Continental - Corporate Logo
T#:340662
Part#: 11287628653
In Stock
$ 51.99

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

$ 29.99 USD
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$ 29.99 USD
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This serpentine belt (7pk-1860) drives the Air conditioning, Alternator, and power steering system for BMW's with the N54/N55 engine. We recommend replacing the AC / Alternator / Power Steering belt every 80,000 miles.

This item fits the following BMWs:
2011-2013  E82 BMW  135i 135is
2011-2011  E90 BMW  335i 335xi 335i xDrive - Sedan
2011-2013  E92 BMW  335i 335xi 335i xDrive - Coupe
2011-2013  E93 BMW  335i Convertible
2008-2010  E60 BMW  535i 535i xDrive
2013+  E84 BMW  X1 xDrive35i
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Conti Tech AC & Alternator Accessory Belt - N20 2.0L
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Continental - Corporate Logo
T#:379606
Part#: 11287618848
In Stock
$ 41.81

This product was last offered at the strikethrough price on
03-17-2026

$ 20.90 USD
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$ 20.90 USD
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OEM replacement A/C & Alternator accessory belt.

Belt - Serpentine Belt - F30 F32 F22 F10 +
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Genuine BMW - Corporate Logo
T#:22238
Part#: 11287618848
In Stock
20% off MSRP $ 31.24

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

$ 25.01 USD
Free Shipping on orders $49 and up
20% off MSRP
$ 31.24

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

$ 25.01 USD
Free Shipping on orders $49 and up
This serpentine belt (6Pkx1003) drives the Air conditioning, Alternator, and power steering system for BMW's with the N20 N26 engines. We recommend replacing the AC / Alternator / Power Steering belt every 80,000 miles.
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
2014+ F22 BMW 228i 228i xDrive
2014+ F23 BMW 228i 228i xDrive
2012+ F30 BMW 320i 320i xDrive 328i 328i xDrive - Sedan
2013+ F31 BMW 328i xDrive 328d xDrive - Wagon
2013+ F32 BMW 428i 428i xDrive - Coupe
2013+ F33 BMW 428i Convertible 428i xDrive Convertible - Convertible
2014+ F34 BMW 328i xDrive GT- Gran Tourismo
2014+ F36 BMW 428i Gran Coupe 428i xDrive Gran Coupe
2012+ F10 BMW 528i 528i xDrive
2011+ F25 BMW X3 xDrive28i
2015+ F26 BMW X4 xDrive28i
2009+ E89 BMW Z4 sDrive28i
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OEM INA Deflection Pulley -- E88 E82 E9X E84
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Ina - Corporate Logo
T#:386298
Part#: 11287578674
In Stock
$ 46.99

This product was last offered at the strikethrough price on
01-26-2026

$ 34.99 USD
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$ 34.99 USD
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This is an OEM INA Idler Pulley, also known as the roller pulley or deflection pulley. The idler pulley is 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!

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Genuine BMW Vibration Damper
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Genuine BMW - Corporate Logo
T#:32906
Part#: 11237574827
Ships in 1-2 days
7% off MSRP $ 104.99

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

$ 97.99 USD
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7% off MSRP
$ 104.99

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

$ 97.99 USD
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Genuine BMW Hub -
This item fits the following BMW Chassis:
E71,E82,E90,E92,E93,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4,F30,F32,F33,F34,F36,F80 M3,F82 M4,F83

Fits BMW Engines including:
N55,S55

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Deflection Pulley
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Bremmen Parts - Corporate Logo
T#:34080699
Part#: 11287578674
In Stock
Sale - Save 21% $ 28.99

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

$ 22.84 USD
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Sale - Save 21%
$ 28.99

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

$ 22.84 USD
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Genuine BMW Alternator/AC/Power Steering Accessory Belt - E60/61 N54,...
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Genuine BMW - Corporate Logo
T#:361829
Part#: 11287628653
In Stock
16% off MSRP $ 63.99

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

$ 53.99 USD
Free Shipping on orders $49 and up
16% off MSRP
$ 63.99

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

$ 53.99 USD
Free Shipping on orders $49 and up
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.
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Idler Pulley
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:37892100
Part#: 11287578675
In Stock
$ 28.54

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

$ 24.99 USD
Limited Qty Sale
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$ 28.54

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

$ 24.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
The idler pulley serves as a guide and support for the serpentine belt, ensuring it runs smoothly over the entire system.
Genuine BMW Power Steering Pulley - E82 E84 E90 E92 E93 N55 3.0L ...
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Genuine BMW - Corporate Logo
T#:58581
Part#: 32427582947
Ships in 1-2 days
6% off MSRP $ 107.99

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

$ 100.99 USD
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6% off MSRP
$ 107.99

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

$ 100.99 USD
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Genuine BMW Pulley -
This item fits the following BMW Chassis:
E82,E90,E92,E93

Genuine BMW Accessory Belt Tensioner Assembly - N20 2.0L
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Genuine BMW - Corporate Logo
T#:33687
Part#: 11287594969
Ships in 3 Business Days
7% off MSRP $ 179.99

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

$ 167.99 USD
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7% off MSRP
$ 179.99

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

$ 167.99 USD
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Genuine BMW Mechanical Belt Tensioner -
This item fits the following BMW Chassis:
E89 Z4,F10,F22,F25 X3,F26 X4,F30,F31,F32,F33,F34,F36

Fits BMW Engines including:
N20,N26

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Genuine BMW Deflection Pulley - E82 E84 E88 E90 E92 E93 X1 335 N55 3....
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Genuine BMW - Corporate Logo
T#:33680
Part#: 11287578674
Ships in 3 Business Days
10% off MSRP $ 82.99

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

$ 74.99 USD
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10% off MSRP
$ 82.99

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

$ 74.99 USD
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Genuine BMW Deflection Pulley -
This item fits the following BMW Chassis:
E82,E90,E92,E93

Fits BMW Engines including:
N55

Genuine BMW Mechanical Belt Tensioner - E82/88 E90/92/93 N55 3.0L ...
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Genuine BMW - Corporate Logo
T#:33684
Part#: 11287582946
Ships in 3 Business Days
7% off MSRP $ 179.99

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

$ 167.99 USD
Free Shipping
7% off MSRP
$ 179.99

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

$ 167.99 USD
Free Shipping


Genuine BMW Mechanical Belt Tensioner -
This item fits the following BMW Chassis:
E82,E90,E92,E93

Fits BMW Engines including:
N55

Gates Accessory Belt - E84, F10, F26, F30, F31, F32, F33, F34, F36 ...
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Gates - Corporate Logo
T#:591624
Part#: 11287618848
Ships on Jun 24, 2026
$ 28.99 USD
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Alternator / AC Belt

URO A/C Idler Pulley - BMW E82/88 E84 E9X N55 3.0L
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2X Entries For Our G87 M2 Sweepstakes!
URO - Corporate Logo
T#:43446142
Part#: 11287578674
In Stock
$ 25.99

This product was last offered at the strikethrough price on
05-19-2026

$ 22.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 25.99

This product was last offered at the strikethrough price on
05-19-2026

$ 22.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Commonly replaced when servicing belts or the cooling system, or when it begins to make noise.

Rein Power Steering Pulley E88 135i, E90 335i/335xi, E84 X1 35i xDriv...
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:34147755
Part#: 32427582947
Ships in 4 Business Days
$ 71.99 USD
Free Shipping on orders $49 and up

Power Steering Pulley is a vital component in your BMW’s power steering system, designed to maintain smooth and responsive steering performance. Available from Turner Motorsport, this high-quality pulley ensures the efficient operation of your power steering pump by providing optimal belt tension and reducing wear. Built to OEM specifications, the Power Steering Pulley is a direct-fit replacement, making installation easy and hassle-free for BMW owners and mechanics alike.

Made from durable materials, this pulley is designed to withstand the rigors of daily driving, offering long-lasting performance and reliability. It’s the perfect solution for those looking to restore or maintain the functionality of their BMW’s power steering system.

Key Benefits:

  • Ensures smooth and efficient power steering operation
  • Direct OEM fit for easy installation
  • Reduces wear on the power steering belt and pump
  • Made from durable materials for long-lasting performance
  • Available from Turner Motorsport, a trusted source for BMW parts

This Power Steering Pulley is an essential part for maintaining the functionality and reliability of your BMW’s power steering system.

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Genuine BMW Idler Pulley - E82 E88 E90 E92 E93 N55 3.0L
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Genuine BMW - Corporate Logo
T#:33681
Part#: 11287578675
Ships in 3 Business Days
10% off MSRP $ 102.99

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

$ 92.99 USD
Free Shipping
10% off MSRP
$ 102.99

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

$ 92.99 USD
Free Shipping


Genuine BMW Deflection Pulley -
This item fits the following BMW Chassis:
E82,E90,E92,E93

Fits BMW Engines including:
N55


Gates Accessory Belt - E60, E61, E82, E84, E88, E90, E92, E93 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Gates - Corporate Logo
T#:591629
Part#: 11287628653
Ships on Jun 24, 2026
$ 55.99 USD
Free Shipping on orders $49 and up
Drive belt for the A/C and power steering