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DORMAN 740478  
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DORMAN 740478 Specifications
Attachment TypeBolt On
Gear MaterialPlastic
Installation Instructions IncludedNo
Motor IncludedNo
Mounting Hardware IncludedNo
Package Contents1 Power Regulator
Window OperationElectric
Wire Quantity0

This replacement window regulator is precision-engineered and extensively tested to match the exact fit, function and performance of the stock window regulator on specific vehicle years, makes and models.

Features & Benefits:
  • Trustworthy replacement - engineered and tested to match the fit, function and performance of the original window regulator on specified vehicles
  • Quality assured - extensively tested by cycling thousands of times in an actual vehicle door to ensure a long, trouble-free service life
  • Reliable design - engineered in the USA and backed by long history of automotive aftermarket experience
  • Easy installation - reverse-engineered to match the original equipment shape and dimensions to provide a direct, seamless fit

Left / Right

Need Help Diagnosing Your Window Regulator Problem?

Before replacing the Window Regulator, check the:
  • Fuse: verify the fuse is not blown
  • Window Switch: remove the window switch from the interior trim panel and test for proper voltage with a multi-meter
  • Window Lift Motor: verify the window lift motor is connected to its harness
  • Wires: verify there are no broken wires coming through the door to the window regulator assembly
For step by step troubleshooting, follow Dorman's Diagnostic Flow Chart.

Why Choose Dorman Window Regulators?

Attention California Customers - WARNING: Cancer and Reproductive Harm -

Alternate/OEM Part Number(s): 51338252393, 740-478

Warranty Information:
Limited Lifetime
Warranty Details