HVAC Relay Overview

The Universal Air Relay RE4420 is an HVAC system relay for select Chevrolet and GMC trucks and SUVs. It is listed for 1992-1994 applications and serves as a direct electrical control component in the climate system.

Key Features

• HVAC system relay for climate control circuit operation
• Fits select Chevrolet and GMC applications from 1992-1994
• Brand line: Relay
• Part number RE4420 for catalog and service matching

Fitment Details

Compatible with 1992-1994 Chevrolet Blazer, relay. Compatible with 1992-1994 Chevrolet C1500, relay. Compatible with 1992-1994 Chevrolet C1500 Suburban, relay. Compatible with 1992-1994 Chevrolet C2500, relay. Compatible with 1992-1994 Chevrolet C2500 Suburban, relay. Compatible with 1992-1994 Chevrolet C35, relay. Compatible with 1992-1994 Chevrolet C3500, relay. Compatible with 1992-1994 Chevrolet K1500, relay. Compatible with 1992-1994 Chevrolet K1500 Suburban, relay. Compatible with 1992-1994 Chevrolet K2500, relay. Compatible with 1992-1994 Chevrolet K2500 Suburban, relay. Compatible with 1992-1994 Chevrolet K3500, relay. Compatible with 1992-1994 GMC C1500 Suburban, relay. Compatible with 1992-1994 GMC K1500 Suburban, relay. Compatible with 1992-1994 GMC K2500 Suburban, relay.

Common Replacement Uses

• Restores HVAC relay function when the climate circuit stops responding
• Addresses intermittent blower or control circuit operation
• Replaces a failed relay in the heating and air conditioning system
• Helps correct electrical switching issues in the HVAC circuit

Installation Notes

Verify the relay part number and vehicle application before installation. Confirm the HVAC circuit diagnosis and inspect the connector and related wiring for damage or corrosion during replacement.

Quality Assurance

Universal Air Relay RE4420 is cataloged as a dedicated HVAC relay component for the listed applications. Part number RE4420 should be matched to the vehicle and system requirements before service.