BMW Water Pumps for BMW 3 Series E46 (1999-2005)

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The water pump is a known failure point on most BMWs, new and old. Older model BMWs come from the factory with a mechanical fan that features a plastic impeller. If your BMW still has a water pump with a plastic impeller, you should upgrade to one with a metal impeller to avoid future failure. New BMWs utilize an electric water pump that cost BMW millions of dollars to design - when it is working it is great, unfortunately these fail so regularly that we recommend replacing your electric water pump every 60,000 miles to avoid stranding yourself on the side of the road. We have hand selected the best OE suppliers for replacement water pumps so you don't have to pay the high cost of Genuine BMW. However, if you're someone who only puts Genuine BMW parts on your car, we understand - that's why we have those available for you as well.

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EMP/Stewart High Performance Water Pump for BMW M50/M52/M54/S50/S52 6...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:3780

Part#: 888010330

In Stock

$ 219.99

This product was last offered at the strikethrough price on
06-15-2026

$ 204.99 USD

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$ 204.99 USD

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This high performance water pump is a direct replacement pump designed to fit a wide range of BMW engines with no modifications. That includes accepting the Factory Fan Clutch. The front of the BMW High Performance Water Pump is stock appearing giving it that classic BMW look while the back is all business. Features up to 20% increase of water flow over stock pump, and it TWICE as efficient as factory pump, much less parasitic drag than other pumps, stainless steel impeller, heavy duty bearing, high quality water seal. Manufactured by EMP / Stewart Components. THIS PUMP COMES WITH A LIMITED LIFETIME WARRANTY

Fits all US Spec M50/52/54 and S50/52 6 cylinder engines including:
E36 chassis 1992-1999 325,328, 323 and M3
E46 chassis 1999-2005 323,325,328 &330
E34 chassis 1991-1995 525i
E39 chassis 1997-2003 525i, 528i & 530i
E53 X5 SAV 1999-2003 6 cylinder models
Z3 2.8 and 3.0 6 cylinder engines.
Z4 (Not M) including Z4 2.5 & 3.0

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

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:363707

Part#: 001977ECS03A

In Stock

Sale - Save 5% $ 104.99

This product was last offered at the strikethrough price on
06-13-2026

$ 99.74 USD

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Sale - Save 5%

$ 104.99

This product was last offered at the strikethrough price on
06-13-2026

$ 99.74 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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Race German Lightweight Aluminum Water Pump Pulley

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:27705450

Part#: M5XLTWWPP

Back Ordered

$ 59.99 USD

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$ 59.99 USD

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E46 M3, Z4M ECS Tuning Aluminum Water Pump Pulley

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:367060

Part#: 002778ECS01

Ships on Nov 24, 2026

Sale - Save 10% $ 100.99

This product was last offered at the strikethrough price on
06-13-2026

$ 90.89 USD

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Qty

Sale - Save 10%

$ 100.99

This product was last offered at the strikethrough price on
06-13-2026

$ 90.89 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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AAF Transmission Crossmembers 5-Speed - E46 Non-M

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits ZF and Getrag Transmissions. Non-M models Only

T#:7608860

Part#: 116110

In Stock at Vendor

$ 190.00 USD

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$ 190.00 USD

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Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. Ideal for the SE46 racing series, the AAF E46 5-speed Transmission Crossmember is a heavy-duty and worthwhile upgrade. The OEM thin cast aluminum cross member has been known to fail in multiple different ways. When using stiff engine and transmission mounts, the cross member can crack out and break around these mounting points. The cross member can also break from the high amounts of load transferred through the drive train. While chassis flex from hard cornering is being applied through the engine and transmission from the front cross member, this load is sent from the transmission back into the chassis at the transmission cross member. This is simply too much stress for the OEM cross member to hold up to under the extreme punishment of road racing. The AAF E46 Transmission Cross Member is completely constructed of 1/4' thick heavy-duty aluminum plate. It is designed specifically to cope with hours of endurance racing.

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Mishimoto Water Pump - BMW M50, M52, M54, S50, S52

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:51075091

Part#: MMWP-M50-92

Ships in 3 Business Days

$ 72.99 USD

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$ 72.99 USD

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The Mishimoto Performance Water Pump provides the thermal stability required for modified engines.

AAF E46 Transmission Crossmembers - 6-Speed Non-M

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For use with solid front engine mounts only!

T#:7624639

Part#: 116222

In Stock

$ 190.00 USD

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Qty

$ 190.00 USD

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Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. Ideal for the SE46 racing series, the AAF E46 6-speed Transmission Crossmember is a heavy-duty and worthwhile upgrade. The OEM thin cast aluminum cross member has been known to fail in multiple different ways. When using stiff engine and transmission mounts, the cross member can crack out and break around these mounting points. The cross member can also break from the high amounts of load transferred through the drive train. While chassis flex from hard cornering is being applied through the engine and transmission from the front cross member, this load is sent from the transmission back into the chassis at the transmission cross member. This is simply too much stress for the OEM cross member to hold up to under the extreme punishment of road racing. The AAF E46 Transmission Cross Member is completely constructed of 1/4' thick heavy-duty aluminum plate. It is designed specifically to cope with hours of endurance racing.

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AAF E46 Transmission Crossmembers - 6-Speed M

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For M Models

T#:7624640

Part#: 116223

Ships in 3 Business Days

$ 190.00 USD

Add to Wish List

Qty

$ 190.00 USD

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Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. Ideal for the SE46 racing series, the AAF E46 6-speed Transmission Crossmember is a heavy-duty and worthwhile upgrade. The OEM thin cast aluminum cross member has been known to fail in multiple different ways. When using stiff engine and transmission mounts, the cross member can crack out and break around these mounting points. The cross member can also break from the high amounts of load transferred through the drive train. While chassis flex from hard cornering is being applied through the engine and transmission from the front cross member, this load is sent from the transmission back into the chassis at the transmission cross member. This is simply too much stress for the OEM cross member to hold up to under the extreme punishment of road racing. The AAF E46 Transmission Cross Member is completely constructed of 1/4' thick heavy-duty aluminum plate. It is designed specifically to cope with hours of endurance racing.

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BMW Water Pumps for BMW 3 Series E46 (1999-2005)

Sub-Categories

EMP/Stewart High Performance Water Pump for BMW M50/M52/M54/S50/S52 6...

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

Race German Lightweight Aluminum Water Pump Pulley

E46 M3, Z4M ECS Tuning Aluminum Water Pump Pulley

AAF Transmission Crossmembers 5-Speed - E46 Non-M

Mishimoto Water Pump - BMW M50, M52, M54, S50, S52

AAF E46 Transmission Crossmembers - 6-Speed Non-M

AAF E46 Transmission Crossmembers - 6-Speed M

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