Mack Window Motor 3060046 12791L

The part number 12791L refers to a Front Driver Side (Left Hand) Power Window Regulator and Motor Assembly, primarily used in Freightliner and Mack heavy-duty trucks. It is the direct counterpart to the 12791R (Passenger Side) and serves as a complete unit to control the window's electric movement.

• Part Type: Power Window Regulator with Motor Assembly.

• Position: Front Left (LH / Driver Side).

• Function: An integrated unit consisting of the 12V electric motor and the mechanical lift regulator.

• Installation: Standard bolt-on attachment with a 2-pin electrical connector. 

  
  

• Vehicle Compatibility
• This part is a standard replacement for several major heavy-duty truck models, typically from 1999 to 2011

• Freightliner: Century Class, Columbia, Coronado, and Argosy.

• Mack: Used on various models, including 2013 Mack trucks.

Interchange & OEM Cross-Reference

• Freightliner OEM: A18-52044-000, A18-42743-000, A18-48951-000.

• Dorman: 741-5204.

• Automann: HLK2293.

• PAI: 740380. 

  Quality and Testing
• TinzerMotor produces these window regulators and window motors with a focus on long-term high quality and mechanical reliability:

• Heavy-Duty Construction: Uses thickened steel plate components and reinforced pivot points to prevent the "sagging" or jamming common in lower-quality aftermarket parts.

• Extensive Testing: Each unit undergoes rigorous cycle testing, involving thousands of manual rotations under simulated glass weight to ensure the internal gears do not strip or slip over time.

• Precision Fit: Designed to align perfectly with the original door mounting holes, ensuring a "bolt-on" installation without the need for drilling or modification.

Please contact: 

Ms Riva  

Wechat/WhatsApp +86 15355970956 

Email: riva@ruishuoautoparts.com

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Mack window regulator motor 3060046 12791L