Gaoyeer AC Blower Motor Resistor 15-80567 (4P1516 / 89018778) — GM Fit, Multi-Speed HVAC Control

Gaoyeer AC blower motor resistor 15-80567 (also referenced as 4P1516 / 89018778) controls HVAC fan speeds so your vehicle’s climate system runs reliably across all settings.

This compact blower motor resistor module is designed as a replacement for a range of GM and related vehicles from the early 2000s that use an automatic A/C control system. Built to match factory performance, the Gaoyeer unit regulates current to the blower fan to deliver consistent low-to-high speed control. Before ordering, verify the OE number, connector style and pin count to ensure the part matches your vehicle’s original resistor — multiple HVAC variants were used across similar models.

Which cars and trucks are compatible with this blower resistor?

This resistor fits many Chevrolet, GMC, Cadillac and other GM-derived models produced between 2003 and 2006 that use auto A/C control. It lists a broad set of part references and aftermarket cross-numbers to simplify comparison with your OE part.

• Chevrolet: Avalanche 1500/2500 (2003–2006), Silverado (1500, 2500, 3500), Suburban (1500/2500), Tahoe, Trailblazer (select years).
• GMC: Sierra 1500/2500/3500, Yukon, Yukon XL, Envoy (2003–2006).
• Cadillac & others: Escalade, Escalade ESV/EXT (2003–2006), Buick Rainier, Isuzu Ascender, Saab 9-7x, Oldsmobile Bravada.
• Cross-reference numbers include 4P1516, 15-80567, 1580567, 89018778 and many aftermarket codes for confirmation.

How does this resistor affect blower speeds and HVAC performance?

The resistor controls electrical current to the blower motor so each fan speed setting gives predictable airflow. If the resistor is worn or open, some fan speeds may not work or the fan may be stuck on a single speed. Replacing the resistor restores stepwise speed control and improves cabin temperature management.

• Regulates current to permit multiple fan speeds from low to high.
• Prevents intermittent fan operation and speed loss on certain settings.
• Engineered to meet or exceed original equipment durability and heat tolerance.

What should I check before buying to ensure correct fitment?

Because several HVAC and engine combinations used different resistor assemblies, visually compare the original part with the replacement and confirm connector and pin count match. Also verify the OE part number stamped on your current resistor against the cross-reference list before purchase.

• Match OE number: 4P1516, 15-80567, 89018778, etc.
• Confirm pin count and harness shape match your original resistor.
• Compare the physical shape and mounting screw locations to avoid surprises during installation.

How easy is installation and what tools are required?

Installation is straightforward for most owners: the resistor sits near the blower motor on the lower passenger side of the HVAC plenum and is secured with a few screws. Removing a small under-dash panel or glovebox access cover is usually all that’s needed; standard hand tools complete the job in under an hour for most vehicles.

• Access point: lower passenger side, near blower motor housing.
• Common tools: Phillips or Torx driver, basic hand tools, possibly a trim tool.
• Simple procedure: unplug harness, remove mounting screws, swap parts, reattach harness and screws.

Who is this for: Drivers and DIY mechanics who own compatible GM trucks and SUVs and need a durable, direct-replacement blower motor resistor for reliable A/C fan speed control. It’s also suitable for technicians replacing failed resistor modules during HVAC repairs or restoration projects on 2003–2006 GM platforms that use auto A/C controls.