1986-1993 Mustang Heater Hose Restrictor
1979 to 1993 Mustang
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Originally used on police cars & 1993 Cobras to reduce volume and pressure to prevent heater core blow outs and leaks. Recommended for all 1979-93 V8’s to reduce heater core leaks because core replacement is a big job. Easily fits inside the heater core hose and comes with installation instructions.