Nilight AC Blower Motor Resistor for Chevy Silverado 1500

Nilight AC Blower Motor Resistor is a direct-fit HVAC control module that restores fan speed regulation for select 2003–2007 GM full-size trucks and SUVs with automatic climate control.

This blower control module replaces a failed heater/AC fan resistor assembly to bring back consistent air-flow and accurate temperature control in compatible Chevrolet, GMC, Cadillac, Buick and related models. It is engineered as a plug-and-play replacement for automatic climate systems—match the connector, pin layout, mounting holes and OE reference before ordering to ensure compatibility with your vehicle's HVAC variant.

Which vehicles will this Nilight blower resistor fit?

This module is designed for many GM trucks and SUVs from the early 2000s. It fits Silverado, Sierra, Suburban, Tahoe, Yukon, Avalanche, Trailblazer, Envoy, SSR, Escalade, and Rainier models listed below when the vehicle uses an automatic climate control system.

• Chevrolet: 2003–2006 Silverado 1500/2500/3500, 2007 Silverado Classic, Suburban 1500/2500, Tahoe, Avalanche, Trailblazer, SSR
• GMC: 2003–2006 Sierra 1500/2500/3500, 2007 Sierra Classic, Yukon, Envoy
• Cadillac/Buick: 2003–2006 Escalade, 2004–2006 Rainier
• Fits vehicles equipped with automatic climate control only—verify connector and OE numbers before purchase

How do I confirm this is the correct replacement for my HVAC problem?

Before installing, compare the old resistor module to the new one visually and by part references. Confirm the connector shape and pin count, check mounting hole alignment, and cross-reference OE or aftermarket part numbers listed to avoid ordering the wrong unit.

• Compare connector shape and pin count against your original part.
• Match mounting holes and overall module shape for proper fitment.
• Cross-check replacement numbers (e.g., GM 89018778, 89019351 and listed equivalents).
• Note: This kit is for automatic climate control systems only.

What are the installation and performance benefits of this Nilight module?

The Nilight blower control module is a direct replacement that simplifies installation and aims to restore stable fan operation. Its construction resists loosening and promotes consistent temperature regulation without frequent readjustments.

• Direct-fit design reduces installation time—no major modifications required.
• Durable construction resists vibration and loose connections during operation.
• Restores multiple fan speeds and improves airflow consistency across settings.
• Replaces a wide range of OE and aftermarket reference numbers for compatibility.

Which part numbers and cross-references does this product replace?

This Nilight module covers many common blower resistor and control module references used across GM platforms. If your original part number matches one of the listed replacements, this unit is a likely compatible choice—still verify physical connector and mounting features.

• Common replacements include 4P1516, 4P1595, 15-80567, 53-69738, BMR34, JA1639 and BR532.
• Also cross-references GM numbers such as 89018778, 89019351, 19260762 and 52495874 among others.
• Complete replacement list included in product details—use it to confirm compatibility.
• If unsure, compare the exact OE number stamped on your original module.

Who this is for: This Nilight blower motor resistor is intended for owners, mechanics and restoration shops working on early-2000s GM trucks and SUVs that have lost heater/AC fan speed control and use automatic climate control. It’s especially useful for anyone who needs a cost-effective, plug-and-play replacement that covers many common OE and aftermarket reference numbers—provided the connector, pinout and mounting pattern match the original unit.