Before BMW switched to electronic water pumps, mechanical water pumps were belt driven. If you're replacing your BMW's water pump, you should also replace the water pump pulley. We recommend lightweight water pump pulleys if they are available for your BMW.

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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 Oct 19, 2026

Sale - Save 10% $ 98.99

This product was last offered at the strikethrough price on
05-03-2026

$ 89.09 USD

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Sale - Save 10%

$ 98.99

This product was last offered at the strikethrough price on
05-03-2026

$ 89.09 USD

Free Shipping

Add to Cart

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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