Billet aluminum MAF bung for 2001-2007 LB7, LLY & LBZ Duramax. The bottom side has a 4.5″ radius machined to fit any 4″ or 5″ tube and includes 2 stainless socket head mounting screws for the MAF sensor.
Yes, you read correctly, dual feed AND dual return! This is the king of all sumps, it will allow you to CLEANLY install 2 lift pumps on your truck without ever dropping the tank! It utilizes 2 1/2″npt feed ports and 2 1/2″ return ports to easily plumb in multiple lift pump. Because of multiple variations, we do not supply fittings with this sump. We would be glad to help you get the correct fittings, contact us with your specific applications for details.