This is the exhaust control valve solenoid for 2007-2009 Chevrolet Kodiak and GMC Topkick T6500, T7500, and T8500 trucks. This part was manufactured by Aeroquip for GM. Replace your old part 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 # 25807310 (number on the item)

Other Part # 29552999 (number on the hose)

Item is number 7 in the GM diagram