Kenworth Window Regulator R21-1010R HLK2508

The R21-1010R is a Power Electric window regulator and motor assembly designed for the Right-Hand (Passenger Side) of several Kenworth heavy-duty trucks. It is a direct OEM replacement for older part numbers like K092-408 and K092408R. 

Core Specifications

Part Number: R21-1010R (also written as R211010R).

Orientation: Front Right (Passenger Side).

Operation: Electric power (includes a 2-pin motor).

Mechanism: Cable-type assembly.

Left-Hand Equivalent: The matching driver-side part is R21-1010.

Vehicle Fitment & Application

This R211010R HLK2508 K092408R Kenworth window regulator  is standard for Kenworth "Daylite Door" configurations, primarily from the late 1990s through the mid-2000s, including:

Kenworth T600: Models from 1997 to 2004 (including T600A and T600B variants).

Kenworth T800: Models from 1997 to 2009.

Kenworth W900: W900B and W900L models (1997–2009).

Other Models: Also compatible with C500 and T300 series within similar years.

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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Kenworth Window Regulator R21-1010R HLK2508