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BMW Drive Belts & V-Belts for BMW F83 M4 S55 3.0L

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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 Deflection Pulley - N55 3.0L, S55 3.0L

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T#:554453

Part#: 11288673720

In Stock

$ 45.99 USD

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$ 45.99 USD

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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.

Genuine BMW Accessory Belt Kit - F8X S55

T#:577516

Part#: 11288088632KT1

Ships in 2 Business Days

$ 483.99

This product was last offered at the strikethrough price on
08-07-2026

$ 459.99 USD

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$ 459.99 USD

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Everything you need to service the belt drive system.

Genuine BMW Water Pump Belt - F80 M3,F82 M4,F83

T#:194159

Part#: 11287848606

In Stock

13% off MSRP $ 30.99

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

$ 26.99 USD

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13% off MSRP

$ 30.99

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

$ 26.99 USD

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Replacement genuine BMW water pump drive belt.

Genuine BMW Deflection Pulley - 11287848607 - F80 M3,F82 M4,F83 ...

T#:194160

Part#: 11287848607

In Stock

10% off MSRP $ 123.34

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

$ 111.05 USD

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10% off MSRP

$ 123.34

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

$ 111.05 USD

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Genuine BMW Deflection Pulley -
This item fits the following BMW Chassis:
F80 M3,F82 M4,F83

Fits BMW Engines including:
S55

Genuine BMW Vibration Damper

T#:32906

Part#: 11237574827

Ships in 3 Business Days

6% 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.

$ 98.99 USD

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6% 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.

$ 98.99 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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Genuine BMW Accessory Belt - F80 M3,F82 M4,F83

T#:194158

Part#: 11287848605

In Stock

7% off MSRP $ 75.99

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

$ 70.99 USD

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7% off MSRP

$ 75.99

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

$ 70.99 USD

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If your belt has begun to squeal, make sure you replace it soon to avoid stoplight embarrassment and potential accessory failure. Even if your belt is not making noise, its a good idea to replace these every 60,000 miles.

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - F8X S55 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:22163426

Part#: 11287848605TKT

Ships on Nov 12, 2026

$ 414.99

This product was last offered at the strikethrough price on
08-07-2026

$ 385.99 USD

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$ 385.99 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 ECS Kevlar Reinforced Drive Belts, tensioner assembly, and idler 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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Genuine BMW Deflection Pulley - 11287589361

T#:33686

Part#: 11287589361

In Stock

5% 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.

$ 78.99 USD

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5% 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.

$ 78.99 USD

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Genuine BMW Mechanical Belt Tensioner -

T#:574081

Part#: 11288088632

Ships in 2 Business Days

3% 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.

$ 173.99 USD

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3% 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.

$ 173.99 USD

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S55 "Bulletproof" Crank Hub & Serpentine Kit - BMW F8X S55 3.0L ...

10X Entries Into Our F80 M3 Sweepstakes

T#:1241399

Part#: TMSS55BPKT

Ships on Nov 25, 2026

$ 794.99

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

$ 769.99 USD

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$ 769.99 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 OEM 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 Looking to go even further and upgrade your Crank Hub as well? Check out T#585961 and T#599784!

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OEM Accessory Belt Service Kit - BMW F8X S55

10X Entries Into Our F80 M3 Sweepstakes

T#:589853

Part#: PBTABF8XS55KT

Ships in 2 Business Days

$ 433.99

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

$ 379.99 USD

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$ 379.99 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 replaced such as the belts, tensioners, and hardware.

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Harmonic Balancer Replacement Kit - S55

10X Entries Into Our F80 M3 Sweepstakes

T#:641974

Part#: 11237853850KT1

Ships on Nov 25, 2026

$ 1,099.99

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

$ 1,073.99 USD

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$ 1,073.99 USD

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The harmonic balancer on the S55 is designed to keep unwanted vibrations from destroying the engine. If your harmonic balancer is worn out or damaged your engine is at risk of possible catastrophic failure. This kit contains all of the components commonly replaced when servicing the harmonic balancer, including serpentine belts and mounting hardware.

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