Improve valve control and valve train durability on your 6.7L Power Stroke diesel with these upgraded valve springs from Power-Stroke Products. Designed for the 2007-2018 Ram 2500, Ram 3500, Ram 4500, Ram 5500, these springs deliver increased seat pressure over factory springs for better valve control under higher boost pressures and RPM. Essential for trucks running performance camshafts, larger turbochargers, or tunes that push beyond stock operating parameters. A direct drop-in upgrade.