Navistar Window Motor 2505420C91 16639429

The 2505420C91 16639429 is the Left-Hand (Driver Side)  International (Navistar) electric window regulator motor for International (Navistar) trucks.

Key Specifications

Part Number: 2505420C91 16639429

Position: Left-Hand (LH) / Driver Side

Type: Electric Motor / Window Motor

Voltage: 12V DC

Left-Hand Equivalent: 2505421C91 (RH)

 Vehicle Fitment

This 2505420C91 16639429 International (Navistar) window regulator motor is a standard component for the modern International "High-Visibility" and vocational cabs (approx. 2002–2018), including:

International 4300 / 4400 / Durastar: Medium-duty series.

International 7300 / 7400 / Workstar: Vocational/Severe-service series.

International 8500 / 8600 / Transtar: Regional haul series.

International TerraStar: Light-medium duty series.

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

Alibaba Shop linkage:

Navistar Window Motor 2505420C91 16639429