BlueStars Blower Motor Resistor with Harness for Chevy/GMC 1996-2014 — Front Direct-Fit, Heat-Resistant

BlueStars 973-407 is a direct-fit front HVAC blower motor resistor with harness designed to restore fan-speed control for compatible Chevy, GMC, Kodiak and Topkick models.

If your vehicle’s HVAC fan only works on one speed, blows intermittently, or stops responding to speed settings, the blower motor resistor is often the cause. The BlueStars 973-407 replacement is built from heat-resistant plastic and robust aluminum to endure under-dash temperatures and repeated cycling. It is engineered to match OEM fitments and electrical connections for a straightforward swap that saves time and avoids dealership repair costs.

How will this resistor restore my HVAC fan speeds?

This resistor regulates current to the blower motor so the fan runs at the selected speeds. When the resistor fails, some speeds drop out or the fan is stuck on a single setting. Replacing it reinstates the stepped resistance network and returns full speed selection through the vehicle’s blower switch.

• Replaces damaged or open resistor circuits that interrupt lower-speed functions.
• Restores full range of fan speeds—low, medium, high—depending on your vehicle’s controls.
• Direct-fit harness ensures correct electrical connection without splicing.

Which vehicles and OEM numbers does this 973-407 part match?

BlueStars lists broad compatibility for Chevy Express, GMC Savana / Express and medium-duty Kodiak/Topkick models across multiple years. The part is manufactured to replace common OEM reference numbers so it works as a drop-in replacement on compatible rigs.

• Fits: Chevy Express and GMC Savana 1500/2500/3500 (selected years) and cargo/passenger variants.
• Also fits medium-duty: C4500/C5500/C6500/C7500 Kodiak and Topkick models where listed.
• Replaces OEM numbers: 973-407, 1580560, 22941007, 3A1041 and additional listed cross-references.

Is installation something I can do myself and what tools are needed?

Yes — the BlueStars 973-407 is designed for a fast DIY replacement. Most installations are completed in about 20 minutes with minimal tools because the resistor uses a direct-fit harness and standard mounting points under the dash or in the HVAC housing.

• Basic tools: screwdriver or small socket set, trim tool if needed, and gloves for protection.
• Typical steps: disconnect battery, access resistor location, unplug harness, remove fasteners, install new resistor and reassemble.
• Time estimate: commonly under 30–45 minutes for first-time installers on compatible vehicles.

What materials and warranty support come with the part?

BlueStars manufactures this resistor using heat-resistant plastics and durable aluminum elements to resist aging and thermal fatigue in the HVAC environment. The listing includes a lifetime warranty policy intended to protect your purchase if the component fails under normal use.

• Construction: reinforced plastic housing and aluminum resistor elements for heat dissipation.
• Durability features: anti-aging and wear-resistant materials suited to under-dash conditions.
• Support: lifetime warranty and customer assistance for fitment or performance concerns.

Who is this for: This BlueStars 973-407 blower motor resistor is aimed at DIY mechanics and professional technicians servicing Chevy/GMC vans and medium-duty trucks that have lost HVAC fan speed control. It’s ideal for fleet maintenance, owners wanting a cost-effective repair, or anyone needing an OEM-compatible replacement with simple installation and backed warranty support.