FEULING PARTS M8 Oil Pump PSI Tester — Red – 18-26 Softail, 17-26 Touring, 17-25 Trike, 17-23 CVO

The M8 Oil Pump PSI Tester lets engine builders verify the relief valve pop-off pressure on '17-'24 M8 engines. The spring tension is adjustable so you can set and confirm the desired pop-off psi on the bench. 🔧

The kit includes an air regulator, a 0 - 100 psi pressure gauge, plugs for water- and oil-cooled oil pumps, a gasket, and the hardware needed for testing. Proper relief valve sealing helps maintain good hot-idle oil pressure and reduces cavitation and related pressure issues.

Note: this tool only fits Feuling™ oil pumps and will not work with factory Harley-Davidson oil pumps. Use the tester to determine exactly at what psi the relief valve opens during bench testing.