PAI 645052 Fuel Check Valve – Detroit Diesel Series 60 Air Governor sending the timing signal the

sending the timing signal the ECM uses to control fuel injection

Spin-on canister with internal threads for direct mount — no separate housing needed

Kenworth Airglide 460 (46

Mack CXN highway (all years equipped with this dash cluster)

PAI 645052 Fuel Check Valve – Detroit Diesel Series 60 Air Governor sending the timing signal thePAI 645052 fuel return line check valve for Detroit Diesel Series 60 12. 7L and 14L engines. The one way valve installs on the cylinder head fuel return passage and holds fuel in the head when the engine is shut off, preventing drain back to the tank and the long crank rough first minute symptom that follows. Direct replacement for Detroit OEM 23516918. Signs You Need a New Fuel Check Valve Hard starting or extended cranking after the truck sits