Yanmar injection pumps are supported by Yanmar with individual parts. To rebuild a Yanmar pump, you have to collect all the individual gasket and seal part numbers and order them individually. This is a very time consuming process! We've taken the pain out of it for you, and put together a kit that services most models of their 4 cylinder inline pumps. The kit contains:
Bottom Cover Gasket
Delivery Valve Holder O-rings
Delivery Valve Copper Seals
Side Cover Gasket
Tappet, Rack, throttle shaft pin O-rings
Shut off shaft O-ring
Governor mounting gasket
Governor case back cover gasket
Rack plug O-ring
Banjo Bolt seals
Fuel Chamber plug seal