VALVE SPRINGS / RETAINERS

24V 95lb Single Spring Set (24pcs) The Industrial Injection 95LB Valve Springs we recommend these valve springs for engines that are pushing over 45psi boost and/or 3200rpm. These valve springs will help prevent valve float, there for allowing your...

Our CPP 115lb 24v Cummins Valve Springs are the recommended for engines turning over 4500 rpm or over 100lbs of boost. When it comes to valve springs in a high performance diesel engine, choosing the right spring is the life line of a 24v Cummins 5.9l or...

Control the valvetrain in your modified 1998.5-2022 Dodge 5.9L Cummins with the XDP HD High Boost Valve Spring Set XD390. The XD390 Valve Spring Kit is designed to help eliminate valve float due to elevated cylinder pressures and higher boost levels...

D&J HD 115lb 24v Cummins Valve Springs have been proven with years of testing. We have seen over 120psi of boost on one of our Stage 3 cylinder heads with these springs. These are the same valve springs we included standard on our Stage 1, Stage 2,...

D&J Precision Machine Cummins Titanium Retainers for 1998 and up 24v Cummins cylinder heads. Our valve spring titanium retainers are proudly made in-house and they are 10 grams lighter than the stock retainers. Our Cummins Titanium...

Engine enthusiasts, revamp and reignite the power within your diesel vehicle with our top-grade cpp-103 valvesprings. Engineered particularly for the 98.5-18 Cummins models, these valvesprings promise unparalleled robustness and durability. Beyond their...

Stock springs have 78-82lbs of pressure seat pressure on average at 1.380″. If you are over 35psi(boost or drive pressure) and 3,800 rpm, stock springs do not fully control the valvetrain. This allows a few negative things to happen. First, valve...