Dorman 645-736 HVAC Blower Motor Resistor Connector

Dorman 645-736 HVAC Blower Motor Resistor Connector

Dorman 645-736 is a blower motor resistor connector for HVAC electrical repair when the original connector has been damaged by heat or corrosion. It restores a secure connection at the blower motor resistor and uses corrosion-resistant terminals for dependable electrical contact.

Key Features

• Direct replacement HVAC blower motor resistor connector
• Designed for damaged OE connectors caused by overheating or corrosion
• 4-wire, female blade terminal design
• 10-gauge wire measurement for HVAC electrical service
• Tin brass terminals with tin plating for corrosion resistance
• 12.5 in overall length for repair routing
• Includes pigtail and butt connectors for the repair connection

Detailed Description

This Dorman HVAC blower motor resistor connector is built for restoring blower motor resistor circuit integrity when the factory connector shows signs of heat damage, melted plastic, or terminal corrosion. The 4-wire female blade configuration and tin-plated brass terminals support a stable electrical connection in the HVAC system. Part number 645-736 is a practical OE-style repair for vehicles that need a replacement connector rather than a full harness overhaul. This part cross-references Ford AU2Z14S411BHA for the same application.

Compatible With 2008-2011 Ford Focus, N/A. Compatible With 2008-2010 Chrysler Town & Country, N/A, Main Unit; w/Manual Air Conditioning Controls. Compatible With 2010 Chrysler Town & Country, N/A, Auxiliary Unit; w/Manual Air Conditioning Controls. Compatible With 2008-2010 Dodge Grand Caravan, N/A, Main Unit; w/Manual Air Conditioning Controls. Compatible With 2010 Dodge Grand Caravan, N/A, Auxiliary Unit; w/Manual Air Conditioning Controls. Compatible With 2009 Chrysler Town & Country, N/A, Auxiliary Unit; From 10/02/08; w/Manual Air Conditioning Controls. Compatible With 2009 Dodge Grand Caravan, N/A, Auxiliary Unit; From 10/02/08; w/Manual Air Conditioning Controls.

Common Repair Uses

• Blower motor resistor connector heat damage
• Corroded HVAC electrical terminals
• Intermittent blower speed operation
• Loss of cabin fan function
• Melted or loose resistor plug connection

Installation Notes and Tips

Inspect the resistor and surrounding wiring before installation, since repeated connector failure can be caused by excess current draw or a failing blower motor. Match the wire positions carefully during the repair and verify a solid terminal crimp and secure blade engagement. This connector is used on Ford Focus, Chrysler Town & Country, and Dodge Grand Caravan applications listed above, including manual air conditioning control configurations.

Quality Assurance

Dorman manufactures replacement electrical repair parts for service applications where the original connector has failed from age, heat, or corrosion. The tin brass terminal construction and corrosion-resistant design support reliable HVAC electrical performance after repair.