Find a replacement Oil Drain Plug and Valve for your 2001-2004 Chevy/GMC 6.6L LB7 Duramax. Upgraded oil drain plugs are available for most applications and make it easy for you to quickly and cleanly drain your engine oil with just the turn of a lever. A standard drain plug can become damaged, rounded, cracked, or stripped which can result in damage to the oil pan, or oil leaks. In most applications replacing your drain plug is an inexpensive way to avoid future hassles during preventative maintenance. Fumoto, Mishimoto, Dorman, and EZ Oil Drain are just some the top brands you'll find.