Dorman 751-125 Window Motor and Regulator Assembly - Front Left

OE-Style Window Motor Assembly

Dorman 751-125 is a replacement power window motor and regulator assembly for the front left position on select Mazda CX-5 models. It is precision-engineered and tested to match stock fit, function, and performance for the specified application.

Built with metal, plastic, and steel components, this assembly uses a bolt-on mounting method and a plug-in connector for straightforward replacement of the original unit. It is designed for automatic down operation and is compatible with 12-volt vehicle electrical systems.

Key Features

• Fits 2017-2025 Mazda CX-5, front left
• Dorman part number 751-125
• Replacement power window motor and regulator assembly
• Motor included; regulator not included
• Bolt-on mounting with 8 mounting holes
• Automatic (down) operation
• 12-volt electrical design
• Plug-in connector style
• Safety glass application
• FMVSS compliant for the listed fitment

Detailed Description

This Dorman window motor assembly is built for the front left door on 2017-2025 Mazda CX-5 vehicles. It is engineered to match the original unit’s fit and operating characteristics, making it a direct replacement for vehicles that use this configuration. The assembly includes the motor and uses a bolt-on installation layout with a steel frame and mixed metal/plastic housing materials.

For shoppers searching for a Mazda CX-5 front left power window motor, Dorman 751-125 provides a vehicle-specific solution for restoring automatic down window operation. This part cross-references KB7W59590 for the same application.

Common Problems This Part Can Address

• Window does not move down when the switch is pressed
• Slow or inconsistent front left window operation
• Motor noise without normal window movement
• Failure of the original power window motor assembly
• Need for a direct replacement on a 2017-2025 Mazda CX-5

Installation Notes and Tips

Verify the front left door application before installation and compare the connector style, mounting points, and electrical layout to the original assembly. This unit uses a plug-in connection and bolt-on mounting, so proper alignment with the door structure is important for correct operation.

Because installation instructions are not included, confirm vehicle-specific service procedures, window glass positioning, and switch function before final assembly. Check the regulator interface and door hardware condition during replacement to avoid repeat removal.

Quality Assurance

Dorman designs this replacement assembly to match the stock window regulator’s fit, function, and performance for the listed Mazda CX-5 applications. It is extensively tested and FMVSS compliant for the specified fitment.