HomeElectrical, Lighting and Body > Glass, Windows and Related ComponentsDorman 742-520 Power Window Motor - Front Left or Front Right
Part #: 742-520

Dorman 742-520 Power Window Motor - Front Left or Front Right

Front Left
27 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$135.03Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
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: INFINITI and Nissan, Q40, G37, Altima, G25, M35, M45, and G35
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Window Motor Replacement for Infiniti and Nissan Vehicles

The Dorman 742-520 window motor is designed to restore smooth and efficient window operation in select Infiniti and Nissan models. This plug-in window lift motor includes the window lift gear, ensuring compatibility and ease of use for your vehicle's power window system.

  • Compatible with Infiniti and Nissan models including Altima, G25, G35, G37, M35, M45, and Q40
  • Plug-in design for straightforward installation without hardwiring
  • Window lift gear included for complete motor functionality
  • No regulator or mounting hardware included, designed for direct motor replacement
  • Does not include wiring harness or embedded logic control

Product Details and Features

The Dorman 742-520 window motor is engineered to replace the factory motor in specific Infiniti and Nissan vehicles. It features a plug-in connection, eliminating the need for complex wiring modifications. The inclusion of the window lift gear ensures the motor engages properly with the window regulator mechanism. This motor does not come with a regulator or mounting hardware, so it is intended for use when only the motor component requires replacement. The absence of embedded logic means it operates as a direct mechanical replacement without additional electronic control features.

Compatible Vehicles and Applications

This window motor is compatible with the following makes and models:

  • Infiniti G25, G35, G37, M35, M45, Q40
  • Nissan Altima

It is designed for owners seeking a reliable replacement for malfunctioning window motors in these vehicles, restoring proper window lift and lowering functions.

Common Issues Addressed by This Window Motor

  • Power window fails to move or responds intermittently
  • Grinding or unusual noises when operating the window
  • Window stuck in one position due to motor failure
  • Slow or uneven window movement
  • Complete loss of power window function

Installation Notes and Tips

  • Ensure the vehicle’s battery is disconnected before installation to prevent electrical shorts
  • This motor is a plug-in type; no hardwiring is required
  • Since mounting hardware and regulator are not included, retain original components if they are in good condition
  • Verify compatibility with your specific vehicle model and year before installation
  • Test window operation after installation to confirm proper function

Quality Assurance and Warranty

Dorman window motors are manufactured to meet or exceed OEM standards for fit and function. The 742-520 part number undergoes quality checks to ensure durability and reliable performance. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or retailer.

BrandDorman
Part Number742-520
Hardwired Or Plug-InPlug-In
Micro-controlled (Embedded Logic)No
Mounting Hardware IncludedNo
Package ContentsWindow Lift Motor
Regulator IncludedNo
Window Lift Gear IncludedYes
Wiring Harness IncludedNo

This part fits 27 vehicles. Search below:

YearMakeModelBody TypePositionNotes
2015INFINITIQ40Front Left
2013INFINITIG37SedanFront Left
2013NissanAltimaSedanFront Rightw/Auto Up/Down
2012INFINITIG25Front Left
2012INFINITIG37SedanFront Left
2012NissanAltimaSedanFront Rightw/Auto Up/Down
2011INFINITIG25Front Left
2011INFINITIG37SedanFront Left
2011NissanAltimaSedanFront Rightw/Auto Up/Down
2010INFINITIG37SedanFront Left
2010INFINITIM35Front Left
2010INFINITIM45Front Left
2010NissanAltimaSedanFront Rightw/Auto Up/Down
2009INFINITIG37SedanFront Left
2009INFINITIM35Front Left
2009INFINITIM45Front Left
2009NissanAltimaSedanFront Rightw/Auto Up/Down
2008INFINITIG35Front Left
2008INFINITIM35Front Left
2008INFINITIM45Front Left
2008NissanAltimaSedanFront Rightw/Auto Up/Down
2007INFINITIG35SedanFront Left
2007INFINITIM35Front Left
2007INFINITIM45Front Left
2007NissanAltimaFront Rightw/Auto Up/Down
2006INFINITIM35Front Left
2006INFINITIM45Front Left

* 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:

38863947-139580731EH1008213045WLM1163

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