Designed for marine or industrial applications, the Insta-Lube Oil Changer utilizes reliable and proven gear pump technology to make your oil change quick, easy, and mess-free. The compact system is lightweight and easy to transport. Heavy-duty alligator clips with 5 lead clamp directly onto your 12V battery to provide power to the self-priming oil transfer pump. Dipstick extraction tube (6 and 8 mm) is resistant to high temperatures. Kit includes a 5-gallon bucket with sealed lid, pump assembly, dipstick tube, heavy-duty alligator clips, and easy pour spout. Gear pump (5. 5 x 3. 15) is constructed of PTFE.