Premium Red Hound Auto heavy duty Control Knobs for Heater, A/C or Fan (two knobs), designed tough and made from the highest quality materials. Product is backed by a no-hassle 1 year guarantee against defects. Compatible with 2000-2006 Toyota Tundra. Reference Numbers: 55905-0C010 559050C010. (2) Control Knob for Heater, A/C or Fan 2000-2006 Compatible with Toyota Tundra Reference Numbers: 55905-0C010 559050C010 Custom-fit design BETTER THAN OEM, Fits snugly correcting the very common "loose knob" design issue Exact fit direct OE replacement