List Of Throttle Body Spacer Jeep 4.0 Ideas. Throttle body spacer, billet aluminum, clear. Iron rock off road's 62mm throttle body spacer is a bolt on accessory that is designed to boost efficiency, power and response.
Web f&b jeep 4.0 throttle bodies are available in 62mm and 68mm bore diameters (stock throttle body diameter is 60mm necked to 56mm). Web throttle body spacers don't do anything on a 4.0. Throttle body spacers (primarily the helix style):