This is a 58mm throttle body made by holley. It has roughly 500 miles on it and is in perfect working order. It includes the IAC motor and TPS sensor. It also has the IAC bore/TB coolant passage on it but I cut the fittings off of it for the coolant hoses. If you want to run the coolant bypass a new plate will have to be purchased. This throttle body is designed to be a direct replacement to any TPI engine, but buyer is responsible for verifying application. Please contact me with any questions. Holley part number 112-503
$200.00 firm