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
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ECS - Corporate Logo
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
Free Shipping
Sale - Save 10%
$ 104.99

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

$ 94.49 USD
Free Shipping
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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ECS - Corporate Logo
T#:20979672
Part#: 6PK1460
Ships in 9 Business Days
Sale - Save 15% $ 33.99

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

$ 28.89 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 33.99

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

$ 28.89 USD
Free Shipping on orders $49 and up
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!
ECS - Corporate Logo
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
Free Shipping
Sale - Save 15%
$ 100.99

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

$ 85.84 USD
Free Shipping
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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Hydraulic Alternator Belt Tensioner Assembly
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:396757
Part#: 11287838797
In Stock
$ 53.99 USD
Free Shipping on orders $49 and up

URO Aluminum Water Pump Pulley - E39, E46, E53, E60, E83, Z3, Z4 ...
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:340641
Part#: 11511436590
In Stock
$ 45.99 USD
Free Shipping on orders $49 and up
$ 45.99 USD
Free Shipping on orders $49 and up
An upgrade over commonly failing plastic pulley
Water Pump Pulley
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:638798
Part#: 11517840403
Ships in 2 Business Days
$ 57.99 USD
Free Shipping on orders $49 and up

ECS Performance Kevlar Reinforced Accessory Belt - E46 E39 E53 E63 E8...
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ECS - Corporate Logo
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
Free Shipping on orders $49 and up
Sale - Save 30%
$ 35.99

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

$ 25.19 USD
Free Shipping on orders $49 and up
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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Rogue Engineering - Corporate Logo
T#:553971
Part#: PP.S54
Ships in 5 Business Days
$ 259.00 USD
Free Shipping
$ 259.00 USD
Free Shipping

Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent.  The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories.  These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.

Rogue Engineering Power Pullies are CNC machined from 6061-T6, heat treated aluminum and specially coated with a MIL-A-8625 Type III hard coat anodize finish. This kind of anodizing is not to be confused with a Type II cosmetic anodize finish (typical colors such as red, blue, silver, green, etc.). The hard coat anodize finish actually builds a small surface layer on top of the aluminum, preventing wear.

This part fits the following BMW engines:
S54

This part fits the following chassis:
E46, Z3, Z4

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Mechanical Alternator Belt Tensioner Assembly
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:371980
Part#: 11281427252
Ships in 2 Business Days
$ 50.99 USD
Free Shipping on orders $49 and up
$ 50.99 USD
Free Shipping on orders $49 and up
Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller.

Mechanical A/C Belt Tensioner Assembly
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URO - Corporate Logo
T#:384308
Part#: 11287512758
Ships in 2 Business Days
$ 43.99 USD
Free Shipping on orders $49 and up
Complete tensioner assembly with roller
Belt Tensioner Conversion Kit
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URO - Corporate Logo
T#:600039
Part#: 11287838797K
Back Ordered
$ 82.99 USD
Free Shipping on orders $49 and up
Update from a mechanical tensioner to a hydraulic style tensioner
Mechanical A/C Belt Tensioner Assembly
For vehicles with production date up to 09/2002
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:361998
Part#: 11281433571
Ships in 2 Business Days
$ 53.99 USD
Free Shipping on orders $49 and up
$ 53.99 USD
Free Shipping on orders $49 and up
Complete tensioner assembly with roller


Rogue Engineering - Corporate Logo
T#:554021
Part#: P.E46
Special Order: No Guaranteed ETA
$ 225.00 USD
Free Shipping
$ 225.00 USD
Free Shipping

Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent.  The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories.  These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.

Rogue Engineering Power Pullies are CNC machined from 6061-T6, heat treated aluminum and specially coated with a MIL-A-8625 Type III hard coat anodize finish. This kind of anodizing is not to be confused with a Type II cosmetic anodize finish (typical colors such as red, blue, silver, green, etc.). The hard coat anodize finish actually builds a small surface layer on top of the aluminum, preventing wear.

Fits the following BMWs:
2000-2006 E46 BMW 323/325/328/330

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Rogue Engineering - Corporate Logo
T#:553959
Part#: PP.S54.RACE
Ships in 10 Business Days
$ 599.00 USD
Free Shipping
$ 599.00 USD
Free Shipping

Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent.  The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories.  These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.

Rogue Engineering Power Pullies are CNC machined from 6061-T6, heat treated aluminum and specially coated with a MIL-A-8625 Type III hard coat anodize finish. This kind of anodizing is not to be confused with a Type II cosmetic anodize finish (typical colors such as red, blue, silver, green, etc.). The hard coat anodize finish actually builds a small surface layer on top of the aluminum, preventing wear.

This part fits the following BMW engines:
S54

This part fits the following chassis:
E46, Z3, Z4

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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!
ECS - Corporate Logo
T#:21693590
Part#: 5PK863
Ships in 9 Business Days
Sale - Save 35% $ 26.99

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

$ 17.54 USD
Free Shipping on orders $49 and up
Sale - Save 35%
$ 26.99

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

$ 17.54 USD
Free Shipping on orders $49 and up
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.
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Drive Belt Pulley Cap
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URO - Corporate Logo
T#:639224
Part#: 11281727159
In Stock
$ 3.99 USD
Free Shipping on orders $49 and up
Replace that missing protective cap and protect your belt tensioner bearing from debris.

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!
ECS - Corporate Logo
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
Free Shipping on orders $49 and up
Sale - Save 40%
$ 26.99

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

$ 16.19 USD
Free Shipping on orders $49 and up
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!
ECS - Corporate Logo
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
Free Shipping on orders $49 and up
Sale - Save 35%
$ 26.99

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

$ 17.54 USD
Free Shipping on orders $49 and up
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