Autocar Window Regulator A5121042-001 A5121038-001

The A5121042-001 is the Left-Hand (Driver Side) electric power window regulator for Autocar heavy-duty trucks.

Key Specifications

Part Number: A5121042-001

Position: Left-Hand (LH) / Driver Side

Operation: Electric (Power)

Manufacturer: TinzerMotor

Supersedes: This part typically replaces the older A5121038-001 model.

Common Vehicle Fitment

This A5121042-001 electric power window regulator is a standard component for newer Autocar vocational chassis, which are built for extreme durability in heavy industries:

Autocar Xpeditor (ACX): Widely used in refuse (garbage) collection fleets.

Autocar DC-64: Severe-duty dump trucks and concrete mixers.

Autocar ACMD: Medium-duty vocational models.

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