HomeElectrical, Lighting and Body > Glass, Windows and Related ComponentsDorman 748-721 Window Motor and Regulator Assembly - Rear Right
Part #: 748-721

Dorman 748-721 Window Motor and Regulator Assembly - Rear Right

Rear Right
6 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Toyota, Avalon
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Dorman 748-721 Rear Right Window Motor Assembly

This Dorman window motor and regulator assembly is built for the rear right door on select 2005-2010 Toyota Avalon models. It is engineered to match stock fit, function, and performance for a direct replacement on the specified application.

Key Features

  • Fits 2005-2010 Toyota Avalon, rear right
  • Replacement power window motor and regulator assembly
  • Precision-engineered for OE-style fit and operation
  • Extensively tested for function and performance
  • Attachment type: bolt
  • Plastic gear material
  • Regulator included
  • Part number: 748-721

Detailed Description

Dorman 748-721 is a rear right window motor and regulator assembly for the Toyota Avalon. It is designed as a direct replacement for the factory unit on 2005, 2006, 2007, 2008, 2009, and 2010 Toyota Avalon models, helping restore normal window movement when the original assembly wears out or fails. The assembly uses a plastic gear and bolt-on attachment design, and it includes the regulator with the motor assembly for the specified application. This part cross-references OE-style numbers such as 69803AC020 and 388750 for the same application.

What It Helps Fix

  • Window glass that no longer raises or lowers properly
  • Slow, uneven, or intermittent rear window operation
  • Grinding or slipping caused by worn internal gear components
  • Failure of the original motor and regulator assembly
  • Loss of normal rear right window function in a Toyota Avalon

Installation Notes and Tips

Fits 2005-2010 Toyota Avalon, rear right. Verify the vehicle year and rear right door application before ordering. This assembly uses bolt attachment points and does not include mounting hardware or installation instructions. Transfer any required vehicle-specific components during installation if applicable to your repair procedure.

Quality Assurance

Dorman states this replacement assembly is precision-engineered and extensively tested to match the fit, function, and performance of the original window regulator on the listed Toyota Avalon applications. Part number 748-721 is built for direct replacement use on the confirmed fitment range.

BrandDorman
Part Number748-721
Gear MaterialPlastic
Attachment TypeBolt
Mounting Hardware IncludedNo
Installation Instructions IncludedNo
Micro-controlled (Embedded Logic)No
Package Contents1 regulator and motor assembly
Regulator IncludedYes

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2010ToyotaAvalonRear Right
2009ToyotaAvalonRear Right
2008ToyotaAvalonRear Right
2007ToyotaAvalonRear Right
2006ToyotaAvalonRear Right
2005ToyotaAvalonRear Right

* 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:

38875069803AC0208210021srWLA1572WPR0873RMB

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