Four Seasons 36143 Engine Cooling Fan Motor Relay

Four Seasons PWM Fan Controller 36143

Four Seasons 36143 is a 12-volt radiator fan controller built as a PWM fan controller for engine cooling system service. It uses a 4-blade male terminal layout, a black cover, and an integrated bracket, with a 40-amp rating for controlled fan motor relay operation.

Compatible With Chrysler Town & Country, Dodge Grand Caravan, Chrysler Pacifica, Dodge Caravan, Jeep TJ, Jeep Wrangler, Chrysler Voyager, and Chrysler Grand Voyager applications equipped with air conditioning systems. This part cross-references UAC RE1012 for the same application.

Key Features

• PWM fan controller / radiator fan controller design
• 12-volt electrical system application
• 40-amp amperage rating
• 4-terminal blade connection with male terminals
• Black housing with bracket
• Meets or exceeds OEM requirements
• Four Seasons part number 36143

Product Details

This Four Seasons PWM Fan Controller is used in cooling fan control circuits where the engine cooling fan motor relay must respond to pulse-width modulation signals. The controller is specified for vehicles with air conditioning systems and is listed for Chrysler, Dodge, and Jeep platforms including Town & Country, Grand Caravan, Pacifica, Caravan, TJ, Wrangler, Voyager, and Grand Voyager. Four Seasons 36143 is built to OE-level specifications and is intended for direct replacement service in the listed applications.

What It Helps Address

• Cooling fan not cycling on at the correct time
• Radiator fan running inconsistently or at the wrong speed
• Overheating caused by fan control circuit failure
• Air conditioning performance issues tied to fan operation
• Fault codes related to fan relay or controller operation

Installation Notes

Verify the vehicle uses an air conditioning system and confirm connector style, terminal count, and bracket configuration before installation. Match the original PWM fan controller layout and electrical rating to the existing cooling fan circuit. For fitment verification, use the vehicle application data for the exact year and model, including Chrysler Town & Country, Dodge Grand Caravan, and Jeep Wrangler listings. Four Seasons 36143 should be installed only where the original controller specification matches the listed 12-volt, 40-amp design.

Quality Assurance

Four Seasons identifies this part as meeting or exceeding OEM requirements. The 36143 radiator fan controller is built for replacement use in the specified applications and follows the brand’s OE-style cooling system standards.