Feuling Oil Pump Pressure Relief Springs

Feuling Oil Pump Pressure Relief Springs provides increased oil pump pop-off pressure in comparison with the stock spring. By doing this, the bypass port's oil flow is corrected and seat pressure and total pop off pressure are raised.

Note: Feuling recommends bench testing with the Feuling cam support plate pressure test tool, 566117, to set pop-off pressure to your preference and to ensure correct valve seal and valve operation.

Compatibility: 99-17 Twin Cam (NU)