T660 & T680 KW Bumper Guard 2007-2017 Kenworth T660 & T680 Brackets OnlyHEAVY-DUTY CONSTRUCTION: Made from galvanized iron & stainless steel, our premium mounting truck bumper brackets are ready for the road. Weather-resistance & a durable build will give you lasting peace of mind, no matter how many miles you’re racking up. EASY ASSEMBLY:.