In areas where temperatures reach 12F(-24C) or below for an extended amount of time, installation of a thermal protective cover (P/N 68564806AA) on the DEF injectors
Body Type: Cab & Chassis; Bed Length: N/R; Wheel Base: 172.4 OR Body Type: Crew Cab Pickup; Bed Length: 98.3; Wheel Base: 169.0 OR Body Type: Cab & Chassis; Bed Length: N/R; Wheel Base: 167.5 OR Body Type: Extended Crew Cab Pickup; Bed Length: 76.3; Wheel Base: 160.5 OR Body Type: Crew Cab Pickup; Bed Length: 76.3; Wheel Base: 149.0 OR Body Type: Cab & Chassis; Bed Length: N/R; Wheel Base: 143.5 OR Body Type: Standard Cab Pickup; Bed Length: 98.3; Wheel Base: 140.2
Body Type: Standard Cab Pickup; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty OR Body Type: Extended Crew Cab Pickup; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty OR Body Type: Crew Cab Pickup; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty