Stewart High Performance Water Pump – BMW M50 / M52 / M54 / S50 / S52
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The Stewart High-Performance Water Pump is one of the most reliable upgrades for the BMW cooling system. Engineered for maximum efficiency and durability, it is the ideal solution for production vehicles, performance upgrades, and track tools.
The pump is a direct replacement for the original water pump and can be installed without modifications. It maintains the OEM look but delivers significantly better performance.
Advantages
- Up to 20% more coolant flow compared to the stock pump
- Significantly higher efficiency than OEM water pumps
- Reduced mechanical resistance
- Stainless steel impeller for maximum durability
- Reinforced bearings for high loads
- High-quality seal for long service life
- Limited Lifetime Warranty
Suitable for
- BMW M50
- BMW M52 / M52TU
- BMW M54
- BMW S50
- BMW S52
Among others suitable for:
E36, E46, E39, E60, Z3, Z4, X3, X5, and M models with S50 / S52 engine
Why this upgrade makes sense
Original BMW water pumps are known for weaknesses such as wear-prone bearings and inefficient flow. Under higher loads, this can lead to temperature problems.
The Stewart water pump significantly improves cooling performance and ensures stable temperatures even during spirited driving or on the racetrack.
Note
Installation by qualified personnel is recommended.
When replacing, coolant, thermostat, and seals should also be checked or replaced.