Motorcraft KT81 is a replacement heater pipe for Ford truck cooling and HVAC service, routing coolant through the heater core circuit while providing the factory-style connections needed at the lower intake manifold. This metal screw-in tube helps restore proper coolant routing on 1985-1994 Ford Bronco, F-150, F-250, and F-350 applications equipped with 5.0L or 5.8L V8 engines, making it a practical choice when the original pipe is corroded, damaged, or leaking around its connections.

Motorcraft KT81 Heater Pipe Features:

• Metal heater pipe construction is built for the heat and coolant exposure found around the intake manifold.
• Screw-in tube design installs into the lower intake manifold as part of the heater core coolant loop.
• Integrated sensor provision accepts the ECT sensor, helping retain the original engine temperature monitoring layout.
• Outlet configuration supports coolant flow to the heater core and the throttle body using the factory-style tube arrangement.
• NPT thread type supports a secure threaded installation when installed with the correct sealing method for the application.
• Referenced as Ford OEM part number E8TZ-18B402-C for buyers cross-checking original equipment service information.