Marsflex Blower Resistor 89019088 – Manual AC for Chevy/GMC (2003-2006)

Marsflex Blower Resistor 89019088 — Manual AC Control

Meet the Marsflex Blower Motor Resistor 89019088, a robust module designed for manual air conditioning control in a broad family of GM vehicles from 2003 to 2006. This replacement targets models across Chevrolet, GMC, and Cadillac, including Avalanche, Silverado, Suburban, Tahoe, Sierra, Yukon, and Escalade. Rather than copying the original, Marsflex aims for OE-like performance with modern materials, offering a practical option when replacing worn or failing resistors. Before you order, take a moment to compare appearance, pin count, and mounting hole configuration to your vehicle, and verify the OE number matches the part you’re replacing. This helps ensure compatibility within the same vehicle family as other resistors.

At its core, the blower resistor modulates the current reaching the blower motor, shaping how fast the fan spins at each setting. With manual AC control, you can expect distinct speed steps and responsive control across the range. Marsflex emphasizes durable construction and thorough testing, aiming for reliable performance in everyday driving. The compact module is designed for straightforward installation, and a wiring harness is included to support clean, secure electrical connections.

Key features

• Manual AC control module governs blower motor speed by adjusting electrical current.
• OE-like design that meets or exceeds original performance with durable materials.
• Includes a wiring harness for easy, secure connections and replacement.
• 1-year warranty and responsive support if you have questions.
• Strict testing and quality control to support long-term reliability.
• Explains how increasing speed settings increase current to the fan for faster airflow.

Compatibility and fit

The resistor is suitable for a broad range of GM models from 2003–2006, covering several Chevy, GMC, and Cadillac configurations. For Chevy: Avalanche 2003–2006 1500/2500, Silverado 2003–2006 1500/1500HD/2500/2500HD/3500, Suburban 2003–2006 1500/2500, Tahoe. For GMC: Sierra 2003–2006 1500/1500HD, 2500/2500HD, 3500; Yukon, Yukon XL 1500/2500. For Cadillac: Escalade ESV and Escalade EXT, 2003–2006. OE reference numbers include 89019088 and related variants. Make sure to check the top-left area of the listing for “amazonconfirmedfit” and confirm your model before ordering.

• Chevy: 2003–2006 Avalanche 1500/2500, Silverado 1500/1500HD/2500/2500HD/3500, Suburban 1500/2500, Tahoe.
• GMC: 2003–2006 Sierra 1500/1500HD, 2500/2500HD, 3500, Yukon/Yukon XL 1500/2500.
• Cadillac: 2003–2006 Escalade ESV/EXT.

Before you buy

• Check the appearance, pin quantity, and mounting hole configuration to ensure a proper match.
• Confirm OE numbers and vehicle fit; this item is intended for the same family as other resistors.

Why Marsflex?

With more than 50 years of experience in automotive HVAC components, Marsflex focuses on durability, reliability, and ease of installation. Each unit is engineered to align with original specifications, backed by thorough testing and quality materials.

What’s in the box

1 blower motor resistor and 1 wiring harness are included. A 1-year warranty provides support if you have questions or encounter an issue.