Get the driver's window moving smoothly again with the Dorman window regulator and smart motor, MPN 751-198. This OE FIX window regulator and motor assembly drops in as a direct-fit replacement for the front left window on the 2003-2006 Lincoln LS — see the Buyer's Guide tab for the full engine-level fitment. When a factory power window assembly fails from smart motor damage, normal wear, or collision impact, this Dorman power window motor and regulator assembly is engineered to help restore the original equipment window operation.
- Upgraded smart motor: features enhanced electronics for greater processing power, faster response, and better protection against voltage spikes, heat-related failures, and motor stall conditions.
- Protected circuitry: the printed circuit board (PCB) is coated with a special resin that resists moisture, dust, and other contaminants to help extend service life.
- Seamless installation: the smart motor's proprietary software helps ensure fast, simple calibration with no special tools or skills required.
- Trusted support: backed by a US-based team of product experts and more than a century of automotive experience; tested to meet federal motor vehicle anti-pinch standards.
Interchange: 21-1856
211856 · 383374 · 3W4Z5423201AA · 4W4Z5423209AA · 4W4Z5423395AA · 4WZ5423209AA
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicle does this Dorman window motor fit?
It is a direct-fit front left power window regulator and motor assembly for the 2003-2006 Lincoln LS. Check the Buyer's Guide tab to confirm the fit for your specific vehicle.
What position is this assembly for?
This unit is cataloged for the front left (driver's side front) window on the listed Lincoln LS applications.
How is the Dorman power window motor different from the original?
Its smart motor uses upgraded electronics for faster response and better protection against voltage spikes, heat-related failures, and motor stall conditions, which may cause repeat failures on some original designs.
Do I need special tools to calibrate it?
No. The smart motor's proprietary software is designed to help ensure fast, simple calibration with no special tools or skills required for installation.
What are signs this window regulator may need replacing?
Common signs include a window that moves slowly, sticks, drops, or stops responding. Diagnose the cause first; if a failed regulator or motor is the issue, this assembly replaces it.
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