Description
A properly sized water pump pulley is critical for maintaining optimal coolant circulation and engine temperature stability, especially in high-performance applications where thermal management directly impacts reliability and power output. The Coleman 15% reduction pulley increases water pump speed relative to engine RPM, ensuring aggressive cooling when you need it most—whether you’re pushing hard on the track or running a modified small block Chevy in demanding conditions. This bolt-on upgrade delivers measurable cooling benefits without requiring custom fabrication.
- 15% reduction ratio
- 7.000 in diameter
- 3/4 in bore
- 2-groove V-belt
- Aluminum construction
- Black anodized finish
- Short water pump mount
- Small block Chevy fitment
- Sold individually
