This repair pin is used if your Rochester Quadrajet carburetor airhorn castings accelerator pump arm boss is snapped. This pin has a serrated shaft which is pressed into the inner boss, allowing the pump arm to function correctly. Saves you the expense of replacing the entire airhorn casting. Easy to install.

Quantity: 1 repair pin
Serrated shaft diameter: .100"
Inner step diameter: .181"
Overall length: .430"