Water Necks, Thermostats, Water Inlets . . .

This fail safe thermostat can save you from costly engine damage during an overheat. They feature an exclusive technology that locks the valve open position if overheating occurs. This allows for...

For use in any 1967-1973 Mercury Cougar except for the 351c in stock configuration. Will work on 351c when you use this Bypass / Restriction plate conversion part. ...

Temperature thermostat for use in very early 1967 cars with 390 engines. 2-1/2 inches in diameter, 195°degree opening like OEM Ford. This is a Stant brand of thermostat. Note, this is a larger...

Reproduction concours correct premium thermostat for the 351C. This is the correct thermostat you would use in conjunction with the new concourse restrictor / by-pass plate on 70 - 73 Cougars and...

Fits all* Ford V-8 engines, 1967 - 1973. *- NOTE: This will fit in the 351C, 351M or 400 but will not block off the port to recirculate the water back through the engine.  This can cause the...

Cast construction with very good quality chrome. Looks great with chrome valve covers and air cleaner. For some helpful tips on upgrading your Cougar (or Mustang) cooling system, check out our video ...

Aluminum casting, made in the U.S.A. Exact copy of original, including part numbers. Fits any small block Ford 260/289/302/351W but would have only been correct on 1967 Mercury Cougar and 1965-67...

New water neck or thermostat housing for all 1967-70 Mercury Cougars or most other Fords with 289/302/351W engines. Cast aluminum with a shiny finish as shown. Removable plug for use with thermal...

Cast construction with very good quality chrome. Looks great with chrome valve covers and air cleaner. Replaces Ford Part #: D0ZZ-8592-A.

Thermostat water neck or 'Connection - Water Outlet' as it is called in the Ford manuals. Fits 1970-73 351C or 351 Cleveland engines as found in 1970-73 Mercury Cougars and most all other Fords with...

Used aluminum water neck of thermostat housing for EARLY 1967 Mercury Cougar or most other 1965-66 Fords with 390 / 428 engines. Cast aluminum finish. For use with early style 2-1/2 inch...

Used aluminum water neck of thermostat housing for mid-LATE 1967 Mercury Cougar or most other Fords with 390 / 428 engines. Cast aluminum finish. For use with common 2-1/8 inch thermostats....