Engine & Under Hood

This vacuum actuated door assembly was used on several performance motors without Ram Air. When extra air was needed under heavy acceleration the vacuum actuator opened the door on the side of the air cleaner base. The actuator on this unit needs to be rebuilt so this is considered a good core only.

This little device may not appear to be all that important, but it has a big job to do when your engine gets too hot. The threaded end looks a bit like an engine temperature sensor, and that's because it is. It's normally mounted on the intake manifold or engine block where it can sense coolant temperature.The three ports at the other end are for vacuum connections. One goes to manifold vacuum, another to carburetor vacuum, and the third goes to the vacuum advance on the distributor. At normal...

Vacuum tested working hot water valve for any 1969-73 Mercury Cougars or Ford Mustang equipped with factory A/C. This valve stops the flow of warm coolant in the heater hose, when the A/C is on. Has the original cast brass valve and vacuum pod. Used but functional, the reproduction version is very good, but has a black plastic valve, like the service replacement valves from Ford.Replaces Ford part number C9AA-18495-D.

351C VALVCOVER Ford engine blue painted valve cover with "Powered by Ford" embossed in the metal. Correct on 1970-1973 Mercury Cougar and Ford Mustang with 351C engines. Ford master parts catalog shows a right and left version of this cover those Service Replacement numbers are D2SZ-6582-A & D2SZ-6582-B. Although we have more of these in inventory, we do not recommend them because the remaining quantities will be less than desireable. *Note - This cover will not work on a 351 Windsor engine. ...

NOS Water bypass plate for all Ford 351C engines. This is an original in the package brass restrictor plate for 1970-73 Mercury Cougar or Ford Mustang Torino etc.Limited to stock on hand. Replaces Ford Part number D0AZ-8K517-A. For some helpful tips on upgrading your Cougar (or Mustang) cooling system, check out our video: ...