LDCRE Blower Motor Resistor for Hummer H2 2003–2007 — Direct-Fit Heater Fan Control Restores Multiple Speeds

LDCRE blower motor resistor for Hummer H2 (2003–2007) is a direct-fit heater fan control module that restores multiple blower speeds and replaces OE numbers like 19331830 and 89023355.

If your Hummer H2's HVAC fan is stuck on one speed, not blowing at all, or behaves inconsistently, the blower motor resistor is a common wear item. This LDCRE module is engineered to match factory dimensions and electrical connections for a straightforward swap—no custom wiring or modification required. It’s offered as a durable replacement that meets or exceeds the stated OEM reference numbers so you can return your climate system to dependable operation.

How does this resistor restore blower fan speeds?

The resistor controls current to the blower motor, supplying different resistance levels to allow multiple fan speeds. Replacing a failed resistor restores the correct resistance values so the blower motor receives proper power at each setting. Installation returns stepped fan control to its intended operation without replacing the whole blower motor.

• Re-establishes multiple fan speed settings by restoring correct resistance levels
• Direct-fit design mates to existing plug and mounting points for accurate electrical contact
• Pre-tested to ensure functional step-down for each speed position

Will this part fit my Hummer H2 model and which OE numbers does it replace?

This LDCRE blower motor resistor is intended for Hummer H2 model years 2003 through 2007 and cross-references several common OEM part numbers. Always compare the pictured unit and connector arrangement to your vehicle’s original resistor before purchase to confirm fit. The listing covers the most frequently used replacement numbers to simplify selection.

• Compatible with Hummer H2 (2003, 2004, 2005, 2006, 2007)
• Replaces OE references: 93803637, 88986529, 15-80388, 15-80655, 15-80911, 89023355, 19331830, 19329838
• Alternative designations: 3GSH-19E624-CA, 4GSH-19E624-AA, 6GSH-19E624-AA

How difficult is installation and what tools do I need?

Installation is designed to be straightforward for anyone comfortable working with basic hand tools and vehicle interior components. The resistor mounts inside or adjacent to the blower housing and is secured by a few screws; unplug the electrical connector, swap the old unit for the new resistor, then re-secure. No complex calibration or programming is required.

• Typical tools: screwdriver set, socket set, and possibly trim removal tools
• Estimated time: 15–45 minutes depending on access and experience
• Comes as a single assembled resistor for one-step replacement

What materials and quality checks are included?

The LDCRE resistor is constructed from reinforced materials and electronic components chosen for heat resistance and long-term reliability. Each unit is tested before shipment to confirm electrical continuity and fitment. The assembly is engineered to meet or exceed the functional expectations of the original factory part.

• Reinforced housing and heat-tolerant resistive elements
• Factory-style electrical connector and mounting points for accurate alignment
• Quality-tested prior to shipping to reduce out-of-box failures

Who is this for: This blower motor resistor is for Hummer H2 owners and professional technicians who need an affordable, OEM-referenced replacement to restore proper HVAC fan control. Choose this LDCRE module if your vehicle exhibits lost or limited blower speeds, you want a direct-fit swap that matches common OEM numbers, and you prefer a part supplied ready for fast installation.