Four Seasons 37254 HVAC Blower Motor Resistor Harness

HVAC Blower Motor Resistor Harness Connector

Four Seasons 37254 is a harness connector for HVAC blower motor resistor circuits in a wide range of GM, Jeep, Buick, Oldsmobile, and Pontiac applications. It is built as a male connector with 4 female terminals and is used on vehicles with air conditioning and on select manual-AC or non-AC configurations listed below.

The Four Seasons Harness Connector line focuses on replacement electrical connectors for HVAC service work, making it a practical choice when the original blower resistor plug is heat-damaged, brittle, or no longer locks securely. Part number 37254 is also referenced by 1P1042 for the same application.

Key Features

• Four Seasons Harness Connector, part number 37254
• Male connector body with 4 female terminals
• HVAC blower motor resistor harness connector for repair and replacement work
• Used across many Chevrolet, GMC, Jeep, Buick, Oldsmobile, and Pontiac models
• Direct-fit style connector for listed factory HVAC applications

Detailed Description

This HVAC blower motor resistor harness connector is used in factory heating and air conditioning wiring where the blower resistor or related connector has failed. It is listed for many vehicles including Chevrolet Corvette, Chevrolet Astro, GMC Safari, Jeep Cherokee, and Chevrolet S10 applications, along with numerous full-size truck, van, and passenger car platforms. The fitment data includes both air-conditioned and select non-air-conditioned configurations, so the exact vehicle equipment package should be matched before ordering.

Four Seasons 37254 is a connector-style replacement intended for service technicians and do-it-yourself repairs that require restoring the electrical connection at the blower motor resistor. It is a practical solution for common HVAC electrical issues on older GM and Jeep platforms, including Chevrolet Blazer, GMC Jimmy, Pontiac Firebird, and Buick Regal applications.

What It Helps Fix

• Broken or heat-damaged blower motor resistor connector
• Intermittent HVAC blower operation caused by poor terminal contact
• Melted, corroded, or brittle factory harness plug
• Loss of blower speeds due to connector failure at the resistor circuit
• Electrical connection problems during HVAC resistor replacement

Installation Notes and Tips

Verify the vehicle’s HVAC equipment before installation, especially on models with manual AC, automatic temperature control, heavy duty heater, or no-air-conditioning configurations. Match the connector shape, terminal count, and terminal gender to the original part before splicing or replacing the harness end. For fitment examples, this part fits 1995-1999 Chevrolet P30, 1991-1996 GMC G3500, and 1981-1987 Jeep Cherokee, with additional coverage across many Chevrolet and GMC truck and van platforms.

Quality Assurance

Four Seasons supplies replacement HVAC electrical components for service applications, and this connector is cataloged for broad OE-style fitment across the listed vehicles. Part number 37254 is identified for the same application as cross-reference 1P1042.