How to Replace Gears On A GPI EZ-8 Pump

Need to replace the gears in your GPI EZ-8 pump? Here's how you do it quickly and efficiently.


Replace the gears on a GPI EZ-8 Fuel Transfer Pump with little trouble using the guide in the video above or the steps listed out below. Remember to wear properly fitting PPE when doing this task!

  1. Turn off the pump and disconnect from power
  2. Remove the cover plate using a 7/16" hex wrench
  3. Remove the gears from the pump cavity
  4. Inspect each gear (part numbers: 13750003, 137500-13) for wear and damage
  5. Remove the o-ring from the cover plate and inspect for wear and damage
  6. Reinstall the gears and make sure they turn freely
  7. Re-insert the o-ring securely into its grooves on the cover plate
  8. Reinstall the cover plate while making sure the o-ring is seated securely before tightening



Offerings covered by this post:
GPI EZ-8 12V Fuel Transfer Pump, 3/4″ Manual Nozzle & 10′ Hose (8 GPM) – EZ-8 (Direct Mount)