Universal Air RE8402C HVAC System Relay

HVAC System Relay for 2008 Toyota 4Runner

The Universal Air Relay HVAC system relay is a direct-fit electrical replacement for the climate control circuit in the 2008 Toyota 4Runner. It is identified by part number RE8402C and is built for a single confirmed application.

Key Features

• HVAC system relay for climate control electrical switching.
• Direct-fit replacement for the confirmed application.
• Part number RE8402C for accurate ordering and service matching.
• Universal Air Relay product line component.

Product Details

This HVAC system relay is used to control electrical flow within the heating and air conditioning circuit. For the 2008 Toyota 4Runner, RE8402C provides the correct relay-style replacement when the original unit no longer switches power reliably. Use this part when diagnosing intermittent HVAC operation, a non-responsive blower or compressor circuit, or relay-related electrical faults in the climate control system. The Universal Air Relay line focuses on replacement electrical components for service applications, and RE8402C is the catalog reference for this relay.

Common Uses

• Restores HVAC electrical switching when the relay contacts wear out.
• Addresses intermittent climate control operation caused by relay failure.
• Helps correct a blower or compressor circuit that does not energize consistently.
• Supports troubleshooting of relay-related HVAC electrical faults.

Installation Notes

Verify the relay location and connector style before installation. Compare the removed unit to RE8402C to confirm the correct electrical match for the 2008 Toyota 4Runner. Follow factory service procedures for relay replacement and circuit testing.

Quality Assurance

Universal Air Relay identifies this part as a service replacement component for HVAC electrical systems. Part number RE8402C should be matched to the confirmed application before installation.