Blower Resistor Standard Motor Products Automotive

Description

Product Overview

The Standard Motor Products blower motor resistor (model RU389, SKU SMPRU389) is engineered for automotive HVAC applications. Featuring a through‑hole connector type and a PCB mount design, this 1 watt resistor delivers consistent resistance to protect blower motor circuits from voltage spikes. Constructed from machined metal housing, it offers robust durability against vibration and heat. Dimensions measure 3.03 x 3.03 x 3.63 inches and it weighs just 3.2 oz, making it easy to handle during installation.

Usage

Designed for use in cars, trucks, and SUVs, this resistor restores proper blower motor function after a failure. It is ideal for professional mechanics performing warranty repairs and for DIY owners restoring their vehicle’s climate control system. Install the component on a standard automotive PCB board, connect the two terminals, and secure it with the provided through‑hole pins.

Why Choose Us

Standard Motor Products is a trusted name in automotive components, known for rigorous testing and quality assurance. Each resistor undergoes thermal cycling and vibration testing to meet OEM specifications. The machined exterior resists corrosion, and the through‑hole design ensures a solid mechanical bond, reducing the risk of loosening over time. With a 4.5‑star rating from 98 verified customers, this part delivers proven reliability.

Key Features

• Through‑hole PCB mount for secure, vibration‑resistant installation
• 1 watt power rating ensures stable performance under load
• Machined metal housing provides excellent heat dissipation
• Compact dimensions (3.03 x 3.03 x 3.63 in) fit most OEM blower motor assemblies
• High customer satisfaction with a 4.5‑star rating and extensive positive reviews

FAQ

What vehicles are compatible with this resistor?

The RU389 resistor fits a wide range of makes and models that use Standard Motor Products blower motor assemblies. Check your vehicle’s service manual for the part number RU389 to confirm compatibility.

Can I replace this part myself?

Yes, the through‑hole design allows DIY installation with basic hand tools. Ensure the vehicle is powered off and follow the wiring diagram provided in the service manual.

What is the warranty on this product?

Standard Motor Products offers a limited one‑year warranty covering defects in materials and workmanship. Register the product on the manufacturer’s website for warranty support.

How does this resistor protect the blower motor?

It limits the current flow to the blower motor, preventing overheating and potential burnout caused by voltage spikes, thereby extending motor life.

Is this resistor suitable for high‑performance vehicles?

Yes, its 1 watt rating and robust construction meet the demands of both standard and high‑performance automotive HVAC systems.