Rear Left Driver Side Power Window Regulator with Motor - H2 Fit

In this review the focus is on the ISINFLASH rear left driver side power window regulator with motor and whether it is a practical replacement for Hummer H2 owners. The bottom line: this unit is best for DIYers or mechanics who need a direct, plug-and-play swap to restore a stuck or slow rear left window on H2 models from 2003 to 2009. The reviewer found the construction to match OE intent and the motor to run smoothly in most cases, making it a sensible, budget-friendly replacement when the original regulator or motor fails.

Key Features

• Direct Fit: Replaces part numbers 751-707, 715771355, HU1550100, and 135-01904L so most Hummer H2 2003-2009 rear left regulators install without modification.
• Built to OE Standards: The regulator and motor are designed to meet or exceed original equipment specifications for reliable operation under normal use.
• Cold-Rolled Steel Support: The regulator support uses cold-rolled steel plate for durable mounting and improved resistance to vibration.
• Copper-Wound Motor: The power window motor features high-quality copper wire for steady torque when lifting and lowering the glass.
• Plug and Play Installation: The assembly uses a 2-pin connector and installs as a direct replacement, reducing bench time for most installations.
• Smoother Operation: A new regulator can reduce binding or rough motion seen with older or worn assemblies.

Who It's For

This part is aimed at Hummer H2 owners and independent mechanics who need a replacement for a failing rear left driver side window regulator on 2003-2009 models. It is especially useful for those who prefer a unit that fits common OEM part references and installs as a direct swap using the existing 2-pin connector.

It may not be the best choice for vehicles with modified or custom door hardware, or for owners who require extended warranty coverage or OEM-branded parts from a dealership. Buyers should confirm the existing regulator part number and connector style before ordering to ensure compatibility.

Pros & Cons

Pros

• Good fitment for Hummer H2 2003-2009 rear left positions based on matching part numbers.
• Solid build with cold-rolled steel support improves durability and reduces vibration.
• Motor with copper windings provides dependable power and smoother glass movement.
• Easy plug-and-play replacement saves time during installation.

Cons

• Some users reported mixed long-term durability, with a few cases of early failure reported by customers.
• Switch orientation or alignment varied in isolated reports, so careful reassembly may be needed to ensure proper operation.

Specifications

Our Verdict

The ISINFLASH rear left driver side power window regulator with motor is a practical, cost-effective replacement for Hummer H2 owners who need to restore rear left window function. It matches common OEM part numbers, offers sturdy construction, and installs without modification, making it good value for DIY repairs or quick shop swaps. Buyers should verify fitment and be aware of a few mixed long-term durability reports.

Frequently Asked Questions

Will this fit my Hummer H2?
It is compatible with Hummer H2 model years 2003 through 2009 for the rear left driver side; confirm your existing part number and 2-pin connector before purchase.

Is installation difficult?
Installation is plug-and-play and designed as a direct replacement, so a competent DIYer or technician can usually install it without special tools.

How durable is the motor?
The motor uses copper windings and the support is cold-rolled steel for improved durability, though a small number of customers reported mixed long-term results.