The Pacbrake HP10029 Governor Spring Kit features heavier coil springs that replace the stock governor coil springs to allow the injection pump to fuel into the upper RPM's, which is particularly beneficial when towing. Pacbrake's governor spring kits are complete with all parts for 3000 and 4000 RPM.
- Includes Springs For Both 3,000 & 4,000 RPM (leave out small spring for 3,000 RPM kit)
- Increases Engine RPM
- Enhanced Throttle Response
- More usable power