This is the differential lock control switch for 2003-2009 Chevrolet Kodiak and GMC Topkick C8500 trucks. This switch mounts in the center console in these trucks. This switch has a 2 prong electrical connection and 2 air hose connections. The air hose connections are red and white. Replace your old, faulty, or non-functioning switch with this brand new factory original part from GM at a fraction of the dealer price.

New. Never Installed. OEM Part. Bulk Overstock

GM Part # 15747004 (number on the item)

Item is number 6 in the GM diagram