BMW Drive Belts & V-Belts for BMW 2 Series F23 (2015+)

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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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Genuine BMW Engine Harmonic Balancer & Crank Pulley - BMW Gen1 B46 (B46A)
Genuine BMW Engine Harmonic Balancer & Crank Pulley - BMW Gen1 B46 (B...
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Genuine BMW - Corporate Logo
T#:535740
Part#: 11238638446
Ships in 2 Business Days
8% off MSRP $ 782.99

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

$ 716.99 USD
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8% off MSRP
$ 782.99

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

$ 716.99 USD
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Harmonic balancers protect your engine from vibrations caused by the combustion process. If your balancer is showing signs of failure and your engine is vibrating excessively, it is best to replace this as soon as possible to prevent damage to the crankshaft and internal engine components.
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Genuine BMW Harmonic Balancer & Crank Pulley Replacement Kit - BMW B46 (Gen 1 / B46A)
Genuine BMW Harmonic Balancer & Crank Pulley Replacement Kit - BMW B4...
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Genuine BMW - Corporate Logo
T#:51602367
Part#: 11238638446KT
Ships in 2 Business Days
New Item
$ 810.99 USD
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$ 810.99 USD
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Harmonic balancers protect your engine from vibrations caused by the combustion process. If your balancer is showing signs of failure and your engine is vibrating excessively, it is best to replace this as soon as possible to prevent damage to the crankshaft and internal engine components.
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Genuine BMW Harmonic Balancer & Crank Pulley Replacement Kit - BMW B58 & B58TU (Non-48V)
Genuine BMW Harmonic Balancer & Crank Pulley Replacement Kit - BMW B5...
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Genuine BMW - Corporate Logo
T#:51426490
Part#: 11239846660KT
Ships in 5 Business Days
New Item
$ 933.00

This product was last offered at the strikethrough price on
03-10-2026

$ 849.99 USD
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$ 849.99 USD
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Harmonic balancers protect your engine from vibrations caused by the combustion process. If your balancer is showing signs of failure and your engine is vibrating excessively, it is best to replace this as soon as possible to prevent damage to the crankshaft and internal engine components.
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OEM Continental Accessory Belt - BMW B58A B58C B58D & B46D B48D
OEM Continental Accessory Belt - BMW B58A B58C B58D & B46D B48D ...
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Continental - Corporate Logo
T#:29765763
Part#: 6PK1153
Back Ordered
$ 18.99 USD
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$ 18.99 USD
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Accessory drive belts keep everything turning off of the crank pulley. Generator, fans, water pumps and AC compressors all rely on this belt to keep everything working properly. If your drive belt is getting old, cracking, glazing, or squeaking, replace it. It's easy to see when the belts are beginning to wear. Visually, the belt will begin to glaze on the underside, making it far less effective. Cracks can appear on the back of the belt from “dry rot” caused by exposure to engine heat or age. Squealing is common on worn belts which basically means that the belt is slipping on pulleys. In either case, your vehicle needs a new belt. Designed for long life, this belt will keep everything turning great and all of your accessories working properly. With a worn belt, accessories aren't working at maximum efficiency. Do not wait for this belt to break to replace. Replace it as part of your next maintenance plans.
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Gates Accessory Belt Tensioner Assembly
Gates Accessory Belt Tensioner Assembly
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Gates - Corporate Logo
T#:567373
Part#: 11287594969
Ships on Jul 30, 2026
$ 150.99 USD
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$ 150.99 USD
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This is the main belt tensioner for A/C, and alternator
Deflection Pulley
Deflection Pulley
For vehicles with a production date up to 03/2016
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Ina - Corporate Logo
T#:593550
Part#: 11288604267
Special Order: No Guaranteed ETA
$ 49.48 USD
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$ 49.48 USD
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Crankshaft Pulley
Crankshaft Pulley
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Febi - Corporate Logo
T#:55066632
Part#: 1004202
Special Order: No Guaranteed ETA
New Item
$ 154.99 USD
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$ 154.99 USD
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This replacement crankshaft harmonic balancer from febi bilstein is designed to restore factory-level drivetrain refinement and protect your engine.
Vaico Mechanical Accessory Belt Tensioner - BMW B46/48 B58
Vaico Mechanical Accessory Belt Tensioner - BMW B46/48 B58
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Vaico - Corporate Logo
T#:50346424
Part#: 11288580360
Special Order: No Guaranteed ETA
New Item
$ 68.99 USD
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$ 68.99 USD
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Accessory belt tensioners provide tension to the belt drive system, ensuring the belt is able to properly turn engine accessories without slipping. If your tensioner has failed, replace it with a brand-new unit to ensure proper water pump and alternator functionality.
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Meyle Mechanical Accessory Belt Tensioner - BMW B46/48 B58
Meyle Mechanical Accessory Belt Tensioner - BMW B46/48 B58
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Meyle - Corporate Logo
T#:5108968
Part#: 11288580360
Special Order: No Guaranteed ETA
$ 95.99 USD
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$ 95.99 USD
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Accessory belt tensioners provide tension to the belt drive system, ensuring the belt is able to properly turn engine accessories without slipping. If your tensioner has failed, replace it with a brand-new unit to ensure proper water pump and alternator functionality.
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ATI Super Damper / Harmonic Balancer - 10% Underdrive - BMW B58A (Gen1), B58C B58D (Gen2/TU) 3.0L
ATI Super Damper / Harmonic Balancer - 10% Underdrive - BMW B58A (Gen...
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ATI - Corporate Logo
T#:43142743
Part#: 918352
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$ 451.99 USD
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$ 451.99 USD
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This ATI Super Damper is a direct replacement for the OEM Harmonic Balancer, designed to further reduce harmful engine harmonics that could lead to damage to sensitive engine components. The 10% underdrive function of this super damper is designed to increase usable horsepower by reducing parasitic power loss without greatly affecting engine accessories.
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ATI Super Damper / Harmonic Balancer - 21% Underdrive - BMW B58A (Gen1), B58C B58D (Gen2/TU) 3.0L
ATI Super Damper / Harmonic Balancer - 21% Underdrive - BMW B58A (Gen...
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ATI - Corporate Logo
T#:43142744
Part#: 918351
Back Ordered
$ 418.99 USD
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$ 418.99 USD
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This ATI Super Damper is a direct replacement for the OEM Harmonic Balancer, designed to further reduce harmful engine harmonics that could lead to damage to sensitive engine components. The 21% underdrive function of this super damper is designed to greatly increase usable horsepower for racing applications by driving engine accessories slower, reducing overall parasitic power loss.
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