Help keep the front left door glass moving up and down on command with the Dorman - HD Solutions 741-5403, a heavy-duty Dorman power window motor and regulator assembly engineered to help restore original equipment function when the factory unit fails. It fits many heavy trucks, among them the 2006-2024 Kenworth W900, 2008-2023 Kenworth T270 and 2008-2023 Kenworth T370. See the Buyer's Guide tab for the full list.
The regulator and motor arrive together, so one part replaces both the lifting mechanism and its drive when the original has failed from damage, fatigue or collision impact.
- Direct replacement: Designed to perform like the factory assembly on the listed trucks, in the front left position.
- Ideal solution: When the factory unit gives out, this power window regulator and motor assembly is engineered to help bring back original equipment operation.
- Durable construction: Designed and built to strict specifications for dependable performance.
- Trustworthy quality: Supported by a U.S.-based team of product experts and more than a century of automotive experience.
Before you order a Dorman window regulator for your Kenworth, look for these signs that the front left regulator or motor may need replacing: glass that moves slowly or not at all, grinding or clicking inside the door when the switch is pressed, or a window that drops or sits crooked. If the regulator or motor is the cause, this assembly replaces both.
Interchange: 21-1643
211643 · 389082 · HLK2271 · R211005
This part cross-references / interchanges with the following part numbers:
389082, HLK2271, R211005, 21-1643
