Sending unit for 2003-2009

TopKick / Kodiak

C4500, C5500,

Replacement for AC Delco Part# MU1580 & GM part # 19426294

This AC Delco part may differ in appearance from the original but works the same.

Shipped with new lock ring, O- ring and updated plug

Fits aft axle plastic secondary tanks

Although the catalog refers to this

as a fuel pump module there is no pump on it.

The transfer pump on the frame 

transfers the fuel from the rear tank to the

front tank

**** If the steel tabs on your tank that hold the lock ring in are rusted away, we have a fix for that!

Click the ebay link below for our lock ring tab repair part. This was developed by us (Patent Pending) for the 

Colorado and Canyon tanks but works well for these tanks too. 

 CANYON -COLORADO 2004-05 PLASTIC GAS TANK LOCK RING REPAIR #TR27-R | eBay

Worked great on my Kodiak Monroe c4500 8.1 rear tank. Fit perfect, came with a new seal and lock and detailed instructions. I would recommend this seller and I will use him again. Thank you gas tank man!
03-09 Kodiak - Topkick C4500, C5500 Aft Axle Sending Unit - Replaces MU1580 (#274319856980)


Gas Tank Renu
Swartz Creek Michigan
Veteran owned since 1987