PANNUOSCS Blower Motor Resistor for 2003-2007 Hummer H2 — 3GSH-19E624-CA Direct-Fit, Copper-Core Socket

PANNUOSCS Blower Motor Resistor 3GSH-19E624-CA is a direct-fit replacement part engineered to restore the multi-speed function of the HVAC blower in 2003–2007 Hummer H2 models.

If your Hummer H2’s fan speeds are inconsistent or the blower only works on certain settings, a worn or damaged blower motor resistor is often the cause. This PANNUOSCS unit is built to match original equipment fit and function, using a copper-core socket and heat-resistant materials to provide reliable airflow control for automatic temperature control systems. The part cross-references common OE numbers so you can verify compatibility before installing.

How will this resistor fix my Hummer H2’s blower speed problems?

Replacing a failed resistor restores the ability of the blower motor to cycle through its various speed settings instead of being stuck on high, low, or off. This PANNUOSCS resistor replicates the electrical resistance network of the factory part to return normal fan control.

• Direct-fit for 2003–2007 Hummer H2 models designed for automatic temperature control.
• Matches OE electrical characteristics to recover all fan speeds.
• Copper-core socket reduces poor connections and overheating risk.
• Replaces OE references such as 93803637, 88986529, 3GSH-19E624-CA, and others.

What are the key build features and materials?

The resistor is manufactured using premium-grade components to withstand thermal and mechanical stress encountered in the HVAC housing. Its construction focuses on durable electrical contacts and a heat-resistant frame to avoid premature failure.

• Copper core socket for improved conductivity and reliable contact.
• Impact and heat-resistant housing to resist aging and deformation.
• Validated to match original performance for safe operation of the blower motor.
• Designed specifically for automatic temperature control systems—verify fitment first.

How easy is it to install and what should I check before buying?

Installation is straightforward for anyone comfortable with basic vehicle electrical access: remove the glovebox or lower dash access panel, unplug the old resistor, and mount the replacement. Still, confirm the part number and that your vehicle uses automatic temperature control to ensure compatibility.

• Simple plug-and-play design replicates factory connectors and mounting points.
• Check cross-reference OE numbers listed to confirm a match.
• Turn off battery power before starting and test blower operation after installation.
• Return or exchange available within 12 months if the part is incorrect.

Which OE numbers and models does this part cover?

This PANNUOSCS resistor replaces a range of original equipment part numbers used across similar GM HVAC assemblies. It is intended for Hummer H2 vehicles from model years 2003 through 2007 when equipped with automatic climate control.

• Common cross-reference numbers: 93803637, 88986529, 15-80388, 15-80655.
• Also corresponds to 15-80911, 89023355, 19331830, 19329838 and variants.
• Manufacturer part IDs include 3GSH-19E624-CA, 4GSH-19E624-AA, 6GSH-19E624-AA.
• Always verify your existing resistor number before purchase.

Who is this for? This replacement is intended for Hummer H2 owners, do-it-yourself mechanics, and professional technicians who need a dependable, OE-style blower motor resistor for 2003–2007 models with automatic temperature control. Choose PANNUOSCS if you want a unit built with copper-core contacts and heat-resistant materials to restore full blower speed functionality while matching original fit and performance.