Standard Ignition RY-137 4WD Actuator Relay

Standard Ignition RY-137 4WD Actuator Relay

Standard Ignition RY-137 is a 12-volt 4WD actuator relay built for Toyota and Lexus applications that rely on a round, female connector and 4 blade terminals. It is a direct-fit electrical relay for restoring 4WD actuator circuit operation on select Land Cruiser, 4Runner, Pickup, and related models.

Key Features

• 12 V relay for 4WD actuator circuit control
• Round female connector with 4 male blade terminals
• 22 amp amperage rating
• No mounting bracket included
• Functions as a relay for electrical switching in the 4WD system
• Compatible with select Toyota, Lexus, and Geo applications

Fitment and Application Details

Compatible With 1985-1998 Toyota Land Cruiser, 1990-1996 Lexus LS400, 1996 Lexus LX450, 1991-1995 Toyota MR2, 1985-1989 Toyota MR2, 1992-1994 Toyota Paseo, 1980-1994 Toyota Tercel, 1983-1993 Toyota Celica, 1986-1993 Toyota Supra, 1989-1992 Geo Prizm, 1980-1992 Toyota Corolla, 1980-1992 Toyota Cressida, 1989-1991 Toyota 4Runner, 1989-1991 Toyota Pickup, 1980-1983 Toyota Pickup, 1985-1990 Toyota 4Runner, 1984-1989 Toyota Van, 1986-1988 Chevrolet Nova, 1983-1987 Toyota Camry, and 1981-1983 Toyota Starlet. Fitment also includes select vehicles with stamping no. 90987-03001, including 1990-1996 Toyota Land Cruiser, 1994 Lexus LS400, 1980-1992 Toyota Cressida, 1989-1991 Toyota 4Runner, 1989-1991 Toyota Pickup, 1985-1989 Toyota MR2, 1985-1988 Toyota Camry, 1980-1985 Toyota Celica, 1983-1985 Toyota Corolla, and 1989 Toyota Van.

What This Relay Helps Resolve

• Intermittent or inoperative 4WD actuator switching
• No engagement response from the 4WD control circuit
• Electrical relay failure in the transfer case or actuator circuit
• Hard-to-diagnose power delivery issues in the 4WD system
• Restoration of proper relay-triggered actuator operation

Installation Notes and Tips

Verify connector shape, terminal style, and amperage rating before installation. Match the vehicle’s original relay stamping or OE reference when applicable, especially on Toyota and Lexus models that list stamping no. 90987-03001. This part cross-references Four Seasons 35843 and SKF 19970 for the same application. Standard Ignition RY-137 should be installed in the correct relay location with the ignition off and the battery disconnected.

Quality Assurance

Standard Ignition supplies electrical replacement parts for service applications, and this relay is built to match the specified 12-volt, 4-terminal blade configuration used in listed vehicles. Part number RY-137 is referenced for direct replacement selection across multiple OE-style applications.