The factory exhaust valve springs on 12 Valve Cummins are sufficient for
a stock engine, but when installing ANY type of exhaust brake, they
simply will not hold the back pressure. Peak Diesel offers this heavy
duty spring kit that will hold pressure with any exhaust brake. Kit
includes 12 exhaust valve springs and installation instructions.
This kit enables your 12 valve engine to attain full fueling up to around 4000 RPM, significantly enhancing the driving experience of a standard truck. For trucks equipped with injectors and more, this kit is essential!
The Peak Diesel Governor Spring Kit is a distinctive blend of high-quality Bosch springs and Piers’ innovative seat design. This governor spring kit is crafted to enable your pump to exceed factory settings while maintaining pump safety.
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Specifications
- SkuPDP-GSK4000HDVS
- ManufacturerPeak Diesel Performance
- MPNGSK4000HDVS
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Peak Diesel 4K Governor Spring kit with 12 HD Valve Springs 94-98 Dodge 5.9L Cummins
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