Mack Window Regulator 11QX56M 85145983

The 11QX56M 85145983 25159818 is a TinzerMotor made Mack Trucks electric window regulator designed for the left-hand (driver) side. It is a critical component for the smooth and reliable operation of the driver's side window in several heavy-duty Mack models.

Key Specifications

Part Number: 11QX56M 85145983 25159818

Old Part Number: 25159818.

Position: Left Side (Driver Side).

Type: Electric Power Window Regulator

Vehicle Fitment

This 11QX56M 85145983 25159818 Mack Window regulator is commonly used in Mack's heavy-duty and vocational series, particularly those manufactured between 1999 and 2013. 

Mack CH Series: Fits 1999–2013 CH models.

Mack CL Series: Fits 1999–2013 CL models.

Mack CX Series: Fits 1999–2013 CX models.

Quality and Testing

At TinzerMotor, our window regulators and motors undergo a rigorous four-pillar validation process to ensure they exceed OEM standards for the heavy-duty trucking industry.

We simulate a lifetime of use through Cyclic Testing, requiring every unit to complete over 15,000 continuous cycles, some more than 30,000 cycles without failure. This ensures the cables, pulleys, and motor brushes withstand repetitive daily operation. Complementing this, Material Testing verifies structural integrity. We perform tensile strength tests on steel frames and hardness checks on gears to prevent premature wear, ensuring the assembly handles heavy glass and high wind pressure.

Through this comprehensive regime, TinzerMotor delivers a high-quality, "fit-and-forget" solution that minimizes maintenance costs and keeps fleets moving regardless of the environment.

Please contact: 

Ms Riva  

Wechat/WhatsApp +86 15355970956 

Email: riva@ruishuoautoparts.com

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Mack Window Regulator 11QX56M 85145983