Gear Pump Oil Change System | Johnson Pump 65000 Convenient oil change kit uses boat's own 12 volt battery bank to quickly pump out engine oil through engine dipstick tube. Johnson Pump oil change kit Ideal for marine engine or industrial oil change applications 12 volt DC operation 2.11 GPM flow rate Self priming up to 3 feet Gear style oil change pump Pump body and gears are made of PTFE Includes gear pump assembly, oil extraction tube, and 5 gallon pail 70 in. battery connection wires with alligator clips Dipstick probe is designed to withstand high temperatures Easy pour spout for emptying of used oil without making a mess 8 amp fuse size