Best federal mogul rebuilt pump

If you can get a kit, and you have a few bucks to buy a puller at Harbor Freight, you can rebuild it yourself. I did mine recently. IIRC the only external seals are the o-ring around the pump body and one around the bolt hole on the back side. Also the shaft seal. More Information for GATES 351170

FWIW, the shaft slides back and forth on all of them until they're spinning. I thought mine was shot too. Fill it up and it would basically run straight through it. Turned out it was just the bolt hole seal.

Also: Help - Federal Pump Rebuild