Harbor Freight Tools


12V Diesel Transfer Pump

Quickly transfer diesel or light oils up to 10 GPM with this 12v transfer pump

Compare to
ROUGHNECK 37888 at $184.99 Save $35

+ Add to My List

Check Inventory For This Product At a Store Near You

This transfer pump works with any low-viscosity oil to fill or empty engines, tanks and more. The battery powered 12 volt motor pumps up to 10 GPM, making this transfer pump ideal for filling diesel powered vehicles or engines at your garage or repair shop.

  • Heavy duty cast iron inlet and outlet ports with die cast aluminum body and trigger
  • Battery powered 12 volt 1/4 HP ball bearing mount motor allows this pump to be used anywhere
  • Self-priming pump with rotating vane, bypass valve, and 3/4 in. inlet/outlet
  • 30 minute per hour duty cycle

66784, 61732, 63682
Flow rate
10 GPM
Amperage (amps)
Duty cycle
30 min/hr
Horsepower (hp)
Hose Length
13 ft. 3/4 in.
Die cast aluminum, cast iron ports
Speed (max)
2800 RPM
Product Height
5-1/2 in.
Product Length
8 in.
Product Weight
15 lb.
Product Width
4-1/2 in.
Shipping Weight
16.95 lb.
Returns disclaimer
CA Residents
Warning - Prop 65 Info
Note: Specifications are approximate and subject to change

We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.