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 six exhaust valve springs and installation instructions.
Specifications
- SkuPDP-HDEXHVALVESPRING
- ManufacturerPeak Diesel Performance
- MPNHDEXHVALVESPRING
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Peak Diesel HD Exhaust Valve Spring Kit 89-98 Dodge 5.9L Cummins 12 Valve
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