Standard Ignition RU-640 HVAC Blower Motor Resistor

Overview of Standard Ignition HVAC Blower Motor Resistor RU-640

The Standard Ignition HVAC Blower Motor Resistor RU-640 is designed to regulate the blower motor speeds in select Chrysler and Dodge vehicles. This component ensures proper airflow control for your vehicle's heating and air conditioning system, compatible with models such as the Chrysler 300, Dodge Challenger, Charger, and Magnum.

• Attachment method: Screw for secure installation
• Connector gender: Female with a rectangular shape
• Number of speeds supported: 3 to 5 speed settings
• Terminal type: Four male blade terminals
• Hardware and wiring harness not included
• Single connector cavity design

Detailed Product Description

The RU-640 blower motor resistor from Standard Ignition is engineered to provide reliable control over the HVAC blower motor speeds in compatible Chrysler and Dodge vehicles. Featuring a screw attachment method, this resistor mounts securely without additional hardware or brackets. The female rectangular connector with one cavity allows for straightforward connection to the vehicle’s wiring harness, while the four male blade terminals ensure consistent electrical contact. This resistor supports multiple blower speeds, ranging from three to five, enabling precise airflow adjustments for optimal cabin comfort.

Compatible Vehicles and Applications

This HVAC blower motor resistor is compatible with various Chrysler and Dodge models, including the Chrysler 300, Dodge Challenger, Charger, and Magnum. It is specifically designed to replace faulty or worn blower motor resistors that cause issues such as inconsistent fan speeds or complete blower failure.

• Resolves blower motor speed irregularities
• Fixes HVAC blower motor not working on certain speed settings
• Eliminates overheating or electrical resistance issues in blower circuits
• Restores proper airflow control in heating and cooling systems

Installation Notes and Tips

Installation of the Standard Ignition RU-640 blower motor resistor requires removing the old resistor and securing the new unit using screws. Since no hardware or wiring harness is included, retain original mounting screws and connectors. Ensure the female rectangular connector aligns properly with the vehicle’s wiring harness to avoid connection issues. It is recommended to disconnect the vehicle battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing dependable performance and durability. The RU-640 blower motor resistor undergoes rigorous quality control to ensure consistent operation within the HVAC system. Warranty coverage details should be confirmed at the point of purchase, as they may vary by distributor.