Four Seasons 35719 A/C Clutch Cycle Switch

Temperature Switch for A/C Clutch Cycling

Four Seasons Temperature Switch 35719 is a system-mounted A/C clutch cycle switch built for 12-volt HVAC control. It uses a preset activation control with a cycling temperature range of 24 degrees off and 36 degrees on to help regulate compressor operation in factory air systems.

Built with a metal body, metal color finish, and open blade connector shape, this temperature switch uses a 2-terminal layout and a 10-inch cap tube. It meets or exceeds OEM requirements and is designed for direct replacement in supported Ford and Lincoln applications.

Key Features

• Four Seasons Temperature Switch line
• Part number 35719
• A/C clutch cycle switch for HVAC temperature control
• Preset activation control with cycling operation
• 24 degrees off / 36 degrees on temperature range
• 12-volt electrical design
• Metal construction with open blade connector
• 2-terminal, system-mount configuration
• 10-inch cap tube length
• Meets or exceeds OEM specifications

Detailed Description

Four Seasons 35719 is a temperature switch used in A/C clutch cycling systems to manage compressor engagement based on evaporator temperature. The switch is designed for factory air HVAC setups and supports long-tail repair searches such as Ford E-150 Econoline temperature switch replacement, Ford E-250 Econoline A/C clutch cycle switch, and Lincoln Continental factory air temperature switch service. This part cross-references Gates 21610 for the same application.

Compatible With 1975-1979 Ford E-100 Econoline, 1975-1979 Ford E-100 Econoline Club Wagon, 1975-1979 Ford E-150 Econoline, 1975-1979 Ford E-150 Econoline Club Wagon, 1975-1979 Ford E-250 Econoline, 1975-1979 Ford E-250 Econoline Club Wagon, 1975-1979 Ford E-350 Econoline, 1977-1979 Ford E-350 Econoline Club Wagon, 1980-1981 Ford E-100 Econoline, 1980-1981 Ford E-100 Econoline Club Wagon, 1980-1981 Ford E-150 Econoline, 1980-1981 Ford E-150 Econoline Club Wagon, 1980-1981 Ford E-250 Econoline, 1980-1981 Ford E-250 Econoline Club Wagon, 1980-1981 Ford E-350 Econoline, 1980-1981 Ford E-350 Econoline Club Wagon, 1982-1983 Ford E-100 Econoline, 1982-1983 Ford E-100 Econoline Club Wagon, 1982-1983 Ford E-150 Econoline, 1982-1983 Ford E-150 Econoline Club Wagon, 1982-1983 Ford E-250 Econoline, 1982-1983 Ford E-250 Econoline Club Wagon, 1982-1983 Ford E-350 Econoline, 1982-1983 Ford E-350 Econoline Club Wagon, and 1966-1968 Lincoln Continental.

What It Helps Address

• A/C compressor cycling that is too frequent or too infrequent
• Temperature control issues in factory air systems
• Worn or failed evaporator temperature switch operation
• Intermittent clutch engagement in supported Ford and Lincoln HVAC systems
• Replacement needs for aging system-mount temperature switches

Installation Notes and Tips

Verify the connector style, terminal count, cap tube length, and temperature range before installation. This switch uses an open blade connector and a system-mount design, so matching the original HVAC layout is important for proper operation. Confirm vehicle application by year, make, model, and factory air configuration before replacing the original part.

Quality Assurance

Four Seasons 35719 is listed as meeting or exceeding OEM requirements for the specified applications. The Four Seasons Temperature Switch line is built for direct-fit HVAC service in supported Ford E-Series vans and Lincoln Continental factory air systems.