Camplate Pressure Relief Spring. Fits Twin Cam 1999-2017.

* Increase the camplate pressure relief pop off pressure with a Feuling spring.

* Our spring has the proper spring rate to control the pop off pressure and oil flow in bye pass port.

* Bench testing recommended with the Feuling camplate pressure test tool FE-9010 set your pop off pressure to your preference.

* Replaces OEM # 26210-99