Skip to content
Free Standard Shipping on Eligible Orders Over $100 in the Contiguous U.S.
Free Standard Shipping on Eligible Orders Over $100 in the Contiguous U.S.

R211021 Genuine Paccar Left Side Window Regulator

P/N: R211021 Manufactured by: Paccar
Original price $899.00 - Original price $899.00
Original price
$899.00
$899.00 - $899.00
Current price $899.00
1 in Stock
Condition: New
We accept:
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa
Not Sure Which Part Fits?
Our support team is here to help.
+1 (828) 209-8010
Monday – Saturday | 8:00 AM – 8:00 PM (EST)
Fast 2–3 Day Shipping
30-Day Returns
In Stock & Ships Fast
Expert Support Available
2-Year Warranty

At Line Truck Parts LLC, we are committed to providing reliable automotive parts and a transparent customer experience. Eligible parts purchased directly from our website are covered by a 2-Year Limited Warranty, giving you added confidence in your purchase. Learn More

Product Overview

The R211021 is a genuine Paccar left-side window regulator designed for Kenworth and Peterbilt trucks. Mounted inside the door, this mechanism raises and lowers the window glass through movement supplied by a manual crank or electric window motor, depending on the vehicle configuration.

Product Features

The R211021 window regulator is manufactured to Paccar factory specifications for controlling vertical movement of the left-side door glass.

  • Installed inside the door structure, the regulator supports the window glass throughout its travel.
  • Mechanical movement transfers operating force through the regulator to raise the glass.
  • Reversing the mechanism lowers the window into the interior section of the door.
  • Manual configurations allow the regulator to operate through a connected window crank.
  • Electric configurations receive movement from the applicable power-window motor.
  • Left-side positioning matches the mounting arrangement of the corresponding driver-side door assembly.

General Specifications

Condition New
Part Number R211021
Brand Paccar
Part Type Control Window Regulator
Position Left Side
Weight 15.20 lb


Installation Notes

The R211021 installs inside the left-side door and connects to the window glass and the applicable manual crank or electric motor mechanism. Confirm smooth glass travel through the full range before reinstalling the interior door panel.

Verify part number R211021, left-side position, vehicle application, door configuration, and manual or electric operating type before installation.

Β 

Β