HomeBody > DoorsDorman 740-647 Window Regulator - Front Left
Part #: 740-647

Dorman 740-647 Window Regulator - Front Left

Front Left
⚙️ 7 vehicles fit this part
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Select your vehicle to confirm fitment
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Pontiac, Grand Prix
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Reliable Window Regulator for Pontiac Grand Prix

The Dorman 740-647 window regulator is designed specifically for Pontiac Grand Prix models, providing a durable and efficient solution for electric window operation. This power window regulator offers a bolt-on attachment type and a combination of metal and plastic frame materials to ensure a secure fit and reliable performance.

Key Features of Dorman 740-647 Window Regulator

  • Compatible with Pontiac Grand Prix electric windows
  • Durable plastic gear material for smooth operation
  • Bolt-on attachment type for straightforward installation
  • Frame constructed from both metal and plastic for strength and flexibility
  • Includes one power regulator unit without motor or mounting hardware

Detailed Product Description

The Dorman 740-647 window regulator is engineered to replace the electric window regulator in Pontiac Grand Prix vehicles. Featuring a plastic gear mechanism, this part ensures smooth and consistent window movement. The frame combines metal and plastic components to balance durability and weight, providing a reliable structure that withstands daily use. This regulator is designed for bolt-on installation, simplifying the replacement process. Note that the motor and mounting hardware are not included, so these components must be reused or purchased separately.

Common Issues Addressed by This Window Regulator

  • Window glass failing to move up or down properly
  • Grinding or unusual noises during window operation
  • Window becoming stuck or moving unevenly
  • Broken or worn-out plastic gears affecting window function
  • Loose or damaged regulator frame causing window misalignment

Installation Notes and Tips

  • Designed for bolt-on installation; ensure proper alignment before tightening bolts
  • Motor and mounting hardware are not included; retain original parts or acquire replacements
  • Installation instructions are not provided; professional installation is recommended if unfamiliar with window regulator replacement
  • Handle the plastic gear and frame components carefully to avoid damage during installation

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 740-647 window regulator undergoes quality checks to ensure reliable performance in Pontiac Grand Prix vehicles. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or retailer.

BrandDorman
Part Number740-647
Attachment TypeBolt On
Frame MaterialMetal
Frame MaterialPlastic
Installation Instructions IncludedNo
Motor IncludedNo
Mounting Hardware IncludedNo
Package Contents1 Power Regulator
Thread DirectionPlastic
Window Operation TypeElectric
Wire Quantity0

This part fits 7 vehicles. Search below:

YearMakeModel# DoorsPositionNotes
2003PontiacGrand Prix4 DoorFront LeftFits power window regulation in various vehicle models.
2002PontiacGrand Prix4 DoorFront LeftFits power window regulation in various vehicle models.
2001PontiacGrand Prix4 DoorFront LeftFits power window regulation in various vehicle models.
2000PontiacGrand Prix4 DoorFront LeftFits power window regulation in various vehicle models.
1999PontiacGrand Prix4 DoorFront LeftFits power window regulation in various vehicle models.
1998PontiacGrand Prix4 DoorFront LeftFits power window regulation in various vehicle models.
1997PontiacGrand Prix4 DoorFront LeftFits power window regulation in various vehicle models.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1031513811R198121882154ASK740647WLR2042

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.