Belt Service Kits for BMW 3 Series F34 (2014+)

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Drive belt service is critical to keeping your BMW on the road. We've taken the liberty of compiling complete drive belt service kits for your vehicle to make your shopping experience as painless as possible. All components we use in these kits are either Genuine BMW or quality OE aftermarket brands that we trust to keep our own BMWs on the road.
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OEM Accessory Belt Service Kit - F3X F22/23 N55 3.0L
OEM Accessory Belt Service Kit - F3X F22/23 N55 3.0L
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T#:587391
Part#: 11287628661ABKT
In Stock
$ 157.99

This product was last offered at the strikethrough price on
02-18-2026

$ 146.99 USD
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$ 146.99 USD
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This kit includes the basic components recommended to replace when it comes time to swap out your accessory belt.
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - BMW N55 F-Chassis
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - BMW N55 F-Chas...
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T#:22097553
Part#: 11287628661TKT
Ships in 7 Business Days
Sale - Save 1% $ 130.99

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

$ 129.95 USD
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$ 130.99

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05-03-2026

$ 129.95 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 idler pulley. 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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OEM Accessory Belt Service Kit - F3X F10 N20 2.0L
OEM Accessory Belt Service Kit - F3X F10 N20 2.0L
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T#:587390
Part#: 11287594969ABKT
In Stock at Vendor
$ 89.15 USD
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$ 89.15 USD
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This kit includes the basic components recommended to replace when it comes time to swap out your accessory belt.
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - F3X F10 N20 2.0L
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - F3X F10 N20 2....
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T#:22097555
Part#: 11287618848TKT
Ships in 7 Business Days
Sale - Save 25% $ 106.99

This product was last offered at the strikethrough price on
06-01-2026

$ 80.08 USD
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Sale - Save 25%
$ 106.99

This product was last offered at the strikethrough price on
06-01-2026

$ 80.08 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 and an OEM tensioner assembly. 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 tensioner and upgrading your accessory belt 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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Genuine BMW Accessory Belt Service Kit - B38 B46/48 B58
Genuine BMW Accessory Belt Service Kit - B38 B46/48 B58
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Genuine BMW - Corporate Logo
T#:577317
Part#: 11288613707KT
In Stock
$ 217.99 USD
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$ 217.99 USD
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Avoid inconvenience and roadside issues with ECS Tuning's comprehensive kit designed for BMW owners. Don't get stranded due to a failed accessory belt impacting the alternator's charging ability. Over time, the tensioner and belt wear out, leading to potential failure. ECS Tuning's kit is assembled to address this concern, including a Genuine BMW accessory belt, belt tensioner assembly, and necessary hardware. Keep your BMW's belt drive system in optimal condition with this convenient, all-inclusive kit.

Key Benefits:

  • Prevents inconvenience from belt failure
  • Comprehensive kit for servicing the belt drive system
  • Includes Genuine BMW parts for reliability
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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - F22/23 F3X B58
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - F22/23 F3X B58...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:22097533
Part#: 11288613707TKT
In Stock
Sale - Save 26% $ 140.99

This product was last offered at the strikethrough price on
01-03-2026

$ 104.59 USD
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Sale - Save 26%
$ 140.99

This product was last offered at the strikethrough price on
01-03-2026

$ 104.59 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 the hardware required to install the 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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Genuine BMW Basic Accessory Belt Service Kit - F22/23 F3X N20 2.0L
Genuine BMW Basic Accessory Belt Service Kit - F22/23 F3X N20 2.0L ...
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Genuine BMW - Corporate Logo
T#:577518
Part#: 11287594969KT1
Ships in 1 day
$ 192.99 USD
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$ 192.99 USD
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This kit includes the basic components recommended to replace when it comes time to swap out your accessory belt.
OEM Accessory Belt Service Kit - B46/48 B58
OEM Accessory Belt Service Kit - B46/48 B58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:587399
Part#: 112886137071ABKT
Ships in 9 Business Days
Sale - Save 20% $ 123.99

This product was last offered at the strikethrough price on
01-03-2026

$ 99.57 USD
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Sale - Save 20%
$ 123.99

This product was last offered at the strikethrough price on
01-03-2026

$ 99.57 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 overheated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need to be replaced such as the belts, tensioners, and hardware.
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Genuine BMW Basic Accessory Belt Service Kit - F22/23 F3X N55 3.0L
Genuine BMW Basic Accessory Belt Service Kit - F22/23 F3X N55 3.0L ...
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Genuine BMW - Corporate Logo
T#:548963
Part#: 11282457049
Ships in 1 day
6% off MSRP $ 280.99

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

$ 262.99 USD
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6% off MSRP
$ 280.99

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

$ 262.99 USD
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This kit includes the basic components recommended to replace when it comes time to swap out your accessory belt.
N55 "Bulletproof" Crank Hub & Serpentine Kit - BMW F22/23 F3X N55 3.0L
N55 "Bulletproof" Crank Hub & Serpentine Kit - BMW F22/...
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Packaged by Turner - Corporate Logo
T#:1241398
Part#: TMSF30N55BPKT
Ships in 7 Business Days
Sale - Save 4% $ 520.99

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

$ 500.79 USD
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Sale - Save 4%
$ 520.99

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

$ 500.79 USD
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BMW has a seemingly endless number of fans of the N54/N55/S55 engines, three straight-six turbo engines that are each capable of 750+ horsepower, but that doesn't mean they were without their faults! BMW's N54 had a notoriously rocky start with reliability due to multiple issues such as fuel injectors failing, turbos failing, serpentine belt failure, crank hubs coming loose, and more... BMW made multiple attempts to fix the issues plaguing the N54, but they could only do so much and the fixes rolled out seemed temporary at best. Following the N54, BMW released their updated N55 and S55 engines, giving many people hope that these engines would address the previous issues. Unfortunately, this was only some-what the case. Crank hubs and crank bolts continued to loosen over time and serpentine belts continued to shred themselves and get pulled into the oil pan through the front main seal. For all three engines, this meant a single failure could effectively turn your engine into an oversized paperweight. Luckily for us, the BMW community is full of skilled enthusiasts who have gladly taken up the task to offer solutions! The first headache to be addressed was the Crank Hub and Bolt. Using a simple plate that fits perfectly over your crank hub's hex-head bolt and mounts up against the damper, the crank bolt is effectively locked in place, preventing it from being able to back out until the plate is fully removed. Next up was the serpentine belt failures. It's not known what exactly causes the serpentine belt to split, but once it does, the pieces hanging off of the belt wrap around and behind the damper. This leads to the belt breaking up into smaller pieces and eventually getting pushed between the crank hub and rear main seal into the oil pan. These small pieces of debris get caught in and block the oil pickup, preventing oil flow and leading to engine failure. To prevent this, multiple aftermarket companies came up with their own versions of Crank Seal Plates. This plate is installed behind the front damper, blocking the opening that allows the serpentine belt to pass between the crank hub and seal, keeping debris out of your oil pan! Also included in this kit are the components to service your front Oil Cooler/Filter Housing gaskets, refresh your drive belt system, and install the aftermarket upgrades. Kit Features and Contents: Vargas Turbo Crank Bolt Capture Vargas Turbo Crank Seal Plate ECS Kevlar reinforced accessory belt OEM Belt Tensioner & Idler Pullies Liqui-Moly Longtime High Tech Engine Oil (5w-30) - 7 Liters OEM Hengst Oil Filter OEM Oil Filter/Cooler Housing Gaskets TMS Oil Change Sticker Genuine BMW Full-Strength Coolant - 1 Liter
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Accessory Belt Service Kit - F3X F2X B46/B48
Accessory Belt Service Kit - F3X F2X B46/B48
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:30430718
Part#: 11288646475KT2
In Stock at Vendor
Sale - Save 20% $ 132.99

This product was last offered at the strikethrough price on
01-03-2026

$ 105.75 USD
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Sale - Save 20%
$ 132.99

This product was last offered at the strikethrough price on
01-03-2026

$ 105.75 USD
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Don't let an accessory belt failure leave you stranded! Over time, the tensioner and belt wear out, risking your alternator's ability to charge and your vehicle's overall reliability. Turner Motorsport has assembled a comprehensive belt drive service kit to keep everything in check and ensure smooth operation.

Key Benefits:

Complete Service Kit: Includes all necessary components to maintain your belt drive system. Enhanced Reliability: Prevents unexpected belt failures and keeps your vehicle running smoothly. Optimized Performance: Ensures your alternator and A/C system function efficiently. Kit Contents:

Accessory Belt Belt Tensioner Assembly A/C Belt Maintain your BMW's performance and reliability with the Turner Motorsport drive belt service kit!

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