This is the A/C compressor belt for many different GM trucks from 2008-2015. This belt is for those vehicles equipped with the 4.8L, 5.3L, and 6.0L engines. This belt has 4 grooves on it. Replace your old belt with this brand new factory original part from General Motors at a fraction of the dealer price.

New. Never Installed. OEM Part. Bulk Overstock

GM Part # 12603509

Alternate GM Part #'s 19178068 ; 19210691

Other Interchange Part #'s

GATES K040355SF

CARQUEST K040355SF

DAYCO E040357

ACDelco 4K355SF

AutoZone E040357

GOODYEAR 4040355S

Item is number 5 in the GM diagram