FAERSI HVAC Blower Motor Resistor Kit 89019100 with Harness — Direct-Fit for 2002–2009 GM SUVs

FAERSI 89019100 is a direct-fit HVAC blower motor resistor kit with harness designed to restore fan speed control on compatible 2002–2009 GM SUVs.

If your vehicle’s blower fan only runs on one speed or not at all, a failed resistor is a common and replaceable cause. This FAERSI kit replaces several OEM numbers and fits manual climate-control systems on select Buick, Chevy, GMC, Oldsmobile, and Isuzu models. The kit ships pre-tested with a harness, intended to simplify installation and return reliable multi-speed operation to the heating and cooling system.

Which vehicles and part numbers does this resistor kit fit?

This FAERSI blower motor resistor is made for manual AC systems on a range of GM-platform SUVs from the early 2000s. It replaces multiple factory part numbers so you can confirm fitment against your existing resistor.

• Compatible vehicles: 2004–2007 Buick Rainier; 2002–2009 Chevy Trailblazer (including EXT); 2002–2009 GMC Envoy (including XL and XUV); 2003–2008 Isuzu Ascender; 2002–2004 Oldsmobile Bravada.
• Replaces OEM numbers: 89019100, 15862656, RU-377, 973-008, 15415789, 89018439, 89018604.
• Designed for manual (not automatic climate control) blower systems.

How does the FAERSI resistor kit improve HVAC performance?

Installing a new resistor restores the regulator that controls multiple fan speeds, so you regain precise airflow for heating and cooling. The harness included with the kit ensures proper electrical connections and reduces chances of miswiring during replacement.

• Restores all fan speed settings for consistent cabin airflow.
• Pre-tested module helps avoid early electrical failures.
• Included harness matches factory connector layout for easier swap-in.

Is the FAERSI part difficult to install and where is it located?

Installation is straightforward for someone comfortable with basic automotive hand tools and a short DIY project. The resistor assembly is mounted on the lower passenger-side of the HVAC housing and is accessible after removing a few screws or the glovebox on some models.

• Direct-fit replacement — no modifications required.
• Typical access: lower passenger side of dash or blower housing area.
• Installation steps: remove securing screws, unplug old connector, swap resistor and harness, reattach screws.

What quality guarantees and support come with the kit?

FAERSI supplies this resistor module after inspection and electrical testing to meet or exceed OEM-level standards. The product is backed by a one-year warranty and customer support for replacements or refunds in case of manufacturing defects.

• 100% tested before shipping to ensure proper function.
• High-grade materials used to improve durability and heat tolerance.
• One-year limited warranty with replacement or refund options.

Who is this for: This FAERSI blower motor resistor kit is aimed at owners and technicians maintaining 2002–2009 GM SUVs with manual AC controls who need a reliable, plug-and-play replacement. It’s a practical, budget-friendly repair for DIY mechanics, independent shops, or fleet maintenance teams seeking OEM-cross-referenced parts to restore proper HVAC fan control.