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BMW Drive Belts & V-Belts for BMW 3 Series E46 (1999-2005)

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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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E36/E46/Z3/Z4 ECS Tuning Aluminum Water Pump Pulley - Black

10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!

T#:363707

Part#: 001977ECS03A

In Stock

Sale - Save 10% $ 104.99

This product was last offered at the strikethrough price on
11-07-2026

$ 94.49 USD

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Qty

Sale - Save 10%

$ 104.99

This product was last offered at the strikethrough price on
11-07-2026

$ 94.49 USD

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Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the M50/M52/M52TU/M54 engine in the E36, E46, Z3, Z4, and other models. It uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.

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ECS Tuning Performance Kevlar Reinforced Accessory Belt - Water Pump ...

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T#:20979672

Part#: 6PK1460

Ships in 4 Business Days

Sale - Save 15% $ 33.99

This product was last offered at the strikethrough price on
11-11-2026

$ 28.89 USD

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Qty

Sale - Save 15%

$ 33.99

This product was last offered at the strikethrough price on
11-11-2026

$ 28.89 USD

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Replaces BMW # 11287837898 ECS Tuning Performance Kevlar reinforced belts give you that extra piece of mind! 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. ECS Tuning Performance Kevlar reinforced belts have been put through a series of multiple tests such. Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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E46 M3, Z4M ECS Tuning Aluminum Water Pump Pulley

10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!

T#:367060

Part#: 002778ECS01

Ships on Dec 18, 2026

Sale - Save 15% $ 100.99

This product was last offered at the strikethrough price on
11-07-2026

$ 85.84 USD

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Qty

Sale - Save 15%

$ 100.99

This product was last offered at the strikethrough price on
11-07-2026

$ 85.84 USD

Add to Wish List

Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the S54 engine in the E46 M3, MZ3, and Z4M. It's the same size and uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.

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S54 VAC Harmonic SuperDamper By ATI - Standard Size Crank Pulley ...

T#:639878

Part#: VAC-HPCDK-S54-ST

In Stock

$ 1,049.99 USD

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$ 1,049.99 USD

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If you are breaking crankshafts and oil pumps, the cause may be a mystery to you as it has been to many of our customers. We know that controlling the harmonic resonance of the BMW 6 is highly important as RPMs rise, but the ideal configuration of the inline-6 motor makes even experienced engine builders overlook some fundamental principals of engine harmonics that can be destructive. ATI Performance Products has partnered with VAC Motorsports to develop new dampers for BMW 2.5L, 2.8L, 3.0L and 3.2L straight-6 engines found in the E36 and E46 M3, E9X and E6X, as well as newer Z3s and Z4s. These dampers eliminate crankshaft harmonic vibration, which allows the engine to produce more horsepower and torque, while also reducing internal engine wear at the same time. Broken oil pumps and timing chains will be a thing of the past! When used with a VAC accessory pulley, these dampers are a direct replacement over the OEM balancer. They have a 7” outer diameter and include OEM style timing alignment tabs. BMW enthusiasts should know that all ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition. The advantages of the ATI SuperDamper include eliminating vibration issues with inline 6 engines equipped with lightweight clutch and flywheel assemblies, reduced bearing, engine accessories, oil pump wear, and compatibility with underdrive pulleys. Made in the USA.

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ECS Performance Kevlar Reinforced Accessory Belt - E46 E39 E53 E63 E8...

10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!

T#:639025

Part#: 6PK1538

In Stock

Sale - Save 30% $ 35.99

This product was last offered at the strikethrough price on
11-11-2026

$ 25.19 USD

Add to Wish List

Qty

Sale - Save 30%

$ 35.99

This product was last offered at the strikethrough price on
11-11-2026

$ 25.19 USD

Add to Wish List

ECS Tuning Performance Kevlar-reinforced belts give you that extra peace of mind! 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. ECS Tuning Performance Kevlar-reinforced belts have been put through a series of multiple tests: Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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VAC Harmonic SuperDamper By ATI - M50/S50/M52/S52

For use only with OBD1 engine management systems.

T#:639877

Part#: VAC-HPCD-M50-TR

Ships on Dec 1, 2026

$ 1,139.99 USD

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$ 1,139.99 USD

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If you are breaking crankshafts and oil pumps, the cause may be a mystery to you as it has been to many of our customers. We know that controlling the harmonic resonance of the BMW 6 is highly important as RPMs rise, but the ideal configuration of the inline-6 motor makes even experienced engine builders overlook some fundamental principals of engine harmonics that can be destructive. ATI Performance Products has partnered with VAC Motorsports to develop new dampers for BMW 2.5L, 2.8L, 3.0L and 3.2L straight-6 engines found in the E36 and E46 M3 as well as newer Z3s and Z4s. These dampers eliminate crankshaft harmonic vibration, which allows the engine to produce more horsepower and torque, while also reducing internal engine wear at the same time. Broken oil pumps and timing chains will be a thing of the past! When used with a VAC accessory pulley, these dampers are a direct replacement over the OEM balancer. They have a 7” outer diameter and include OEM style timing alignment tabs. BMW enthusiasts should know that all ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition. The advantages of the ATI SuperDamper include eliminating vibration issues with inline 6 engines equipped with lightweight clutch and flywheel assemblies, reduced bearing, engine accessories, oil pump wear, and compatibility with underdrive pulleys. Kit includes: Damper Lightweight VAC Billet Crankshaft Pulley Mounting and Installation Hardware Trigger Ring for OBD1 systems Note: Will NOT work with S50B30 & S50B32 Euro Engines, For Street/Track cars with Air Conditioning, the Additional A/C Pulley Option is REQUIRED as the OE A/C pulley is not compatible. The additional mounting and installation hardware is also included. Made in the USA

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ECS Tuning Performance Kevlar Reinforced Accessory Belt - A/C - BMW ...

For vehicles with production date up to 09/2002

10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!

T#:21693590

Part#: 5PK863

Ships in 4 Business Days

Sale - Save 35% $ 26.99

This product was last offered at the strikethrough price on
11-11-2026

$ 17.54 USD

Add to Wish List

Qty

Sale - Save 35%

$ 26.99

This product was last offered at the strikethrough price on
11-11-2026

$ 17.54 USD

Add to Wish List

Replaces BMW # 11281437450 and 11281437872 ECS Tuning Performance Kevlar reinforced belts give you that extra piece of mind! 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. ECS Tuning Performance Kevlar reinforced belts have been put through a series of multiple tests such. Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

Show More Show Less

ECS Tuning Performance Kevlar Reinforced Accessory Belt - A/C - E46 E...

For vehicles with production date from 09/2002

10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!

T#:20979670

Part#: 4PK863

In Stock

Sale - Save 40% $ 26.99

This product was last offered at the strikethrough price on
11-11-2026

$ 16.19 USD

Add to Wish List

Qty

Sale - Save 40%

$ 26.99

This product was last offered at the strikethrough price on
11-11-2026

$ 16.19 USD

Add to Wish List

Replaces BMW # 11287512762, 11281437450, and 11281437872 ECS Tuning Performance Kevlar reinforced belts give you that extra piece of mind! 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. ECS Tuning Performance Kevlar reinforced belts have been put through a series of multiple tests such. Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

Show More Show Less

ECS Tuning Performance Kevlar Reinforced Accessory Belt - A/C - E46 M...

10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!

T#:23416515

Part#: 5PK830

In Stock

Sale - Save 35% $ 26.99

This product was last offered at the strikethrough price on
11-11-2026

$ 17.54 USD

Add to Wish List

Qty

Sale - Save 35%

$ 26.99

This product was last offered at the strikethrough price on
11-11-2026

$ 17.54 USD

Add to Wish List

Replaces BMW # 11287830946 ECS Tuning Performance Kevlar reinforced belts give you that extra piece of mind! 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. ECS Tuning Performance Kevlar reinforced belts have been put through a series of multiple tests such. Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

Show More Show Less

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