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: 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