Part Number: PE01122

Ilmor PE01122 Raw Water Pump Pulley
Restore smooth and reliable operation to your marine cooling system with the Ilmor PE01122 Raw Water Pump Pulley. Designed as a genuine OEM replacement, this pulley plays a critical role in driving the raw water pump and maintaining proper cooling system performance on Ilmor marine engines.
The raw water pump pulley transfers engine belt rotation to the raw water pump, allowing continuous water circulation through the cooling system. A damaged or worn pulley can cause belt misalignment, vibration, squealing, premature belt wear, or reduced cooling performance. Replacing a worn pulley helps maintain proper belt tracking and dependable cooling system operation.
Manufactured to Ilmor factory specifications, the PE01122 pulley is built using durable marine-grade materials designed to withstand constant load, heat, and vibration in demanding marine environments. Engineered for precise fitment, it installs directly onto compatible Ilmor raw water pump assemblies for reliable long-term performance.
Common Engine Fitments
The Ilmor PE01122 raw water pump pulley is commonly used on Ilmor MV8 and GDI marine engines, including:
- Ilmor MV8 5.7L
- Ilmor MV8 6.0L
- Ilmor MV8 6.2L
- Ilmor 5700GDI
- Ilmor 6000GDI
- Ilmor 6.2L GDI and GDI-S engines
These engines are widely found in premium towboats and surf boats, including:
- MasterCraft X22
- MasterCraft X24
- MasterCraft X26
- MasterCraft XT21, XT22, and XT23
- MasterCraft NXT22 and NXT24
- MasterCraft ProStar
These boats often operate with high electrical loads and heavy ballast systems, making reliable accessory drive performance essential for proper engine cooling.
Fitment can vary by engine serial number and accessory drive configuration, so confirming compatibility with part number PE01122 before ordering is recommended.
Key Features
- Genuine Ilmor OEM raw water pump pulley
- Designed for MV8 and GDI marine engines
- Helps maintain proper belt alignment and water pump operation
- Reduces belt vibration and premature wear
- Marine-grade construction built for durability
- Direct-fit replacement for compatible Ilmor engines
Why Replace a Water Pump Pulley?
Over time, pulleys can wear, warp, or become damaged from heat, corrosion, and belt tension. Replacing a worn pulley helps maintain smooth belt operation, protects accessory drive components, and ensures proper cooling system performance.
If you’re servicing an Ilmor-powered MasterCraft or other compatible inboard boat, the PE01122 raw water pump pulley delivers the OEM-quality fit and reliability your engine was designed for.