Switch power to your A/C compressor clutch circuit with the Four Seasons A/C Clutch Relay, part number 35987. It fits many vehicles, among them the 1982-1989 Ford Mustang, 1986-1989 Ford Taurus and 1988-1989 Ford Festiva, as a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list and engine details.
Four Seasons lists this standard relay under several names: A/C clutch relay, A/C compressor control relay and HVAC relay. A relay lets a low-current control signal switch a higher-current circuit. Here it is designed to energize the compressor clutch circuit when the A/C system calls for cooling.
- Engineered and tested: Four Seasons engineers and tests its products with the aim of trouble-free operation, drawing on more than 50 years of mobile A/C experience.
- Precision engineered: Built for vehicle-specific applications.
- OE-style molded connectors: Molded connectors styled after the original equipment.
- Quality contacts: Designed to maintain proper conductivity through the switched circuit.
Signs this relay may need replacing include a compressor clutch that won't engage, or engages only intermittently, with the A/C switched on. Other components can cause the same symptoms, so diagnose the circuit before replacing the relay.
Interchange: 1550967 · AC8208 · 208819 · HS314 · 11135987 · E1FZ19D572D · 19189442 · 601688 · 2583 · 244314 · 19887
This part cross-references / interchanges with the following part numbers:
1550967, AC8208, 208819, 35987, HS314, 11135987, E1FZ19D572D, 19189442, 601688, 2583, 244314, 19887
Frequently Asked Questions
What does the Four Seasons 35987 relay do?
It is an A/C clutch / A/C compressor control relay. A low-current signal from the A/C control circuit energizes it, and its contacts then switch power to the compressor clutch circuit.
Is this a 1982-1989 Ford Mustang starter relay?
No. Four Seasons 35987 is cataloged as an A/C clutch / compressor control relay for the 1982-1989 Ford Mustang, not a starter relay.
Which other vehicles does it fit?
It fits many Ford and Mercury vehicles, including the 1986-1989 Ford Taurus and 1988-1989 Ford Festiva. See the "Vehicles it fits" section for the full list.
What signs may mean the A/C relay needs replacing?
A compressor clutch that won't engage, or engages only intermittently, with the A/C on can be a sign. Other parts can cause the same symptoms, so diagnose the circuit before replacing the relay.
How is this relay installed?
It uses OE-style molded connectors for vehicle-specific applications. Follow the vehicle service information for the relay's location and the correct removal and installation steps.
