BestKeys 2008 GMC Sierra 1500 2500 3500 Keyless Entry Remote Key Fob This is a brand new replacement key fob remote for 2008 GMC Sierra 1500 2500 3500 Every single remote is tested before it is sent to make sure it is transmitting. We will provide a link to our website with Free Do-It-Yourself instructions with your order. Replacement for part numbers: 15913420, 25836192, 20869057, 15857840, 5913427. FCC ID: OUC60270 0UC60270 New complete working remote with all electronics and batteries included plus FREE tech support with every order.