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Description
973-407 Front HVAC Fan Blower Motor Resistor973 407 Front HVAC Fan Blower Motor Resistor Key Features Direct fit replacement for the original equipment blower motor resistor. Restores the function of variable fan speeds for your vehicle's front HVAC system. Kit includes a new resistor and a wiring harness pigtail to repair melted or corroded connectors. Engineered to match the performance and fit of the original component. Package contains: 1 resistor, 1 wiring harness, and butt connectors for
973-407 Front HVAC Fan Blower Motor Resistor
Key Features
- Direct-fit replacement for the original equipment blower motor resistor.
- Restores the function of variable fan speeds for your vehicle's front HVAC system.
- Kit includes a new resistor and a wiring harness pigtail to repair melted or corroded connectors.
- Engineered to match the performance and fit of the original component.
- Package contains: 1 resistor, 1 wiring harness, and butt connectors for splicing.
Replaces / Cross-Reference Part Numbers
- Dorman: 973-407
- OE: 89018778
- OE: 89019351
- OE: 1581638
- OE: 93803636
Compatibility & Fitment
- Fits select Chevrolet and GMC truck and van models.
- Chevrolet Express 1500, 2500, 3500
- Chevrolet C4500, C5500, C6500, C7500 Kodiak
- GMC Savana 1500, 2500, 3500
- GMC C4500, C5500, C6500, C7500 Topkick
When to Replace
- HVAC fan only operates on the highest speed setting.
- Fan speed is uncontrollable or stuck on one speed.
- No air blows from the vents at any fan speed.
- Visible burn marks, corrosion, or melting on the original resistor or its electrical connector.
Installation Tips
- Disconnect the vehicle's battery before beginning installation.
- The resistor is typically located in the HVAC ductwork behind the glove box or on the passenger side of the lower dashboard.
- Inspect the original wiring connector for heat damage or corrosion; use the included pigtail harness for repair if needed.
- Ensure a secure connection when splicing the new harness to prevent overheating and future failure.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Product Reviews
★★★★★ 4
My dogs love these
Flavor Name: Bacon, Size: 7 inch (Pack of 1)
My dogs love these, chew on them for hours of enjoyment
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
★★★★★ 5
Spot bam bone
Flavor Name: Chicken, Size: 7 inch (Pack of 1)
My dogs love it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 1
Inconsistent product
Flavor Name: Bacon, Size: 7 inch (Pack of 1)
Not suitable. Technically suitable and excellent weight; I love Spot! Bambones; but this time, all it did was fall apart as soon as my dog started chewing. I had to take it away immediately
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 5
Great for Chewers!
Flavor Name: Chicken, Size: 7 inch (Pack of 1)
Purchased for my German Shepherd Pup a few months back and it’s still going strong! It is by far his favorite chew toy. It clearly lasts a long time. It’s a nice size with some weight to it. Good for them chewers!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2025
★★★★★ 3
Not for aggressive chewers
Flavor Name: Bacon, Size: 5.25 inch (Pack of 1)
This bone is noticeably softer than most chew toys I've bought. That may be a positive for some dogs, but my dog was able to break off fairly large pieces, which made me nervous. It might work well for light chewers, but I wouldn't recommend it for aggressive chewers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026