This left rear power window regulator from Omix-ADA, 01-04 Jeep Grand Cherokee WJ.
Power Window Regulator, Left Rear; 01-04 Jeep Gran
Does your Jeep window not roll up and down anymore? Or even worse, it's stuck somewhere in between. Omix-ADA offers high-quality replacements that will give you years of service. You won't need clear plastic and duct tape.