Transmission Cooling Line Fitting Adapter Features:
- Sold as a pair
- Brass fittings
- Connects 1966 transmission cooling lines to radiator

If you are having issues connecting your new transmission cooling lines to your radiator or connecting your original lines to a new radiator, then these fittings are the solution! 1966 Mustangs originally used these fitting adapters because the fittings on the radiator end of the transmission cooling lines were too large to connect to the radiator directly. These adapters were used to complete that connection. If you do not have the original fittings to reuse then you will be needing these adapters to connect your cooling lines to your radiator.

Please Note: These fittings are for the radiator end of the transmission cooling lines to connect to the radiator, they are NOT for use on the transmission end.

*These fittings are not needed when using 1965 cooling lines and hoses.