HomeBody > DoorsDorman 740-778 Window Regulator - Rear Right
Part #: 740-778

Dorman 740-778 Window Regulator - Rear Right

Rear Right
⚙️ 9 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: INFINITI and Nissan, I30 and Maxima
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Window Regulator for Infiniti I30 and Nissan Maxima

The Dorman 740-778 window regulator is designed to restore smooth electric window operation in select Infiniti and Nissan vehicles. Engineered with durable materials, this part ensures consistent performance for your vehicle's power windows.

  • Compatible with Infiniti I30 and Nissan Maxima models
  • Electric window operation type for seamless control
  • Durable metal and plastic frame construction
  • Plastic gear material for reliable movement
  • Bolt-on attachment type for secure installation
  • Includes one power regulator unit

Durable Construction and Design Features

The Dorman 740-778 window regulator features a combination of metal and plastic frame materials that provide strength while reducing weight. The plastic gear material is engineered to engage smoothly with the window mechanism, minimizing wear and noise during operation. This regulator is designed for electric window systems and does not include a motor, making it ideal for replacing the regulator component only. The bolt-on attachment type allows for a straightforward and secure fitment in compatible vehicles.

Compatible Vehicles and Part Number Details

This window regulator is specifically compatible with Infiniti I30 and Nissan Maxima models, ensuring a precise fit and proper function. The part number 740-778 should be referenced when searching for replacement window regulators for these vehicles to guarantee compatibility and performance.

Common Issues Addressed by This Window Regulator

  • Power window fails to move up or down smoothly
  • Window becomes stuck or moves unevenly
  • Grinding or clicking noises during window operation
  • Window falls inside the door panel
  • Electric window motor runs but window does not move

Installation Notes and Tips

Installation of the Dorman 740-778 window regulator requires removal of the door panel and disconnection of the existing regulator. Since mounting hardware and installation instructions are not included, it is recommended to retain original hardware and consult a repair manual specific to Infiniti I30 or Nissan Maxima models. Proper alignment of the regulator is essential to ensure smooth window operation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. While this window regulator does not include a motor or mounting hardware, it is built with quality materials to provide reliable service. Please refer to Dorman's warranty policy for coverage details on part 740-778.

BrandDorman
Part Number740-778
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 9 vehicles. Search below:

YearMakeModelPositionNotes
1999INFINITII30Rear RightFits power window regulation in various vehicle models.
1999NissanMaximaRear RightPower; To 3/99
1998INFINITII30Rear RightFits power window regulation in various vehicle models.
1998NissanMaximaRear RightFits power window regulation in various vehicle models.
1997INFINITII30Rear RightFits power window regulation in various vehicle models.
1997NissanMaximaRear RightFits power window regulation in various vehicle models.
1996INFINITII30Rear RightFits power window regulation in various vehicle models.
1996NissanMaximaRear RightFits power window regulation in various vehicle models.
1995NissanMaximaRear RightFits 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:

11R18878371818178272040U00WLR1263WR40778

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