Dorman 748-112 Power Window Motor and Regulator Assembly - Rear Left
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Dorman

Dorman 748-112 Power Window Motor and Regulator Assembly - Rear Left

Brand Dorman 748-112
Position Rear Left
Attachment Type Bolt
Installation Instructions Included No
Micro-controlled (Embedded Logic) No
Mounting Hardware Included No
Package Contents 1 Regulator and Motor Assembly
Regulator Included Yes
Thread Direction Plastic
Fits Buick · 6 vehicles

Exact-fit replacement. Precision-engineered to match stock fit, function, and performance.

Bolt attachment. Simplifies installation with a secure, straightforward connection.

Plastic gear design. Keeps the assembly lightweight while delivering reliable operation.

Cross-references ACI 82187, 821060ar and 15929734 for the same application. See all 4.

$102.55Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

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Step 2 — Quantity
Order total $102.55
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Power Window Motor and Regulator Assembly options

Dorman 748-112 Rear Left Window Motor Assembly

Dorman 748-112 is a replacement power window motor and regulator assembly for the rear left door on select Buick Lucerne models. It is engineered and tested to match the original regulator’s fit, function, and operating performance for a direct-style repair.

  • Replacement power window motor and regulator assembly
  • Fits 2006-2011 Buick Lucerne, rear left
  • Precision-engineered for stock-style fit and operation
  • Extensively tested for function and performance
  • Plastic gear material
  • Bolt attachment type
  • Regulator included
  • Package contents: 1 regulator and motor assembly

Fitment and Application Details

This Dorman 748-112 assembly is built for the rear left window position on 2006, 2007, 2008, 2009, 2010, and 2011 Buick Lucerne vehicles. It is a direct replacement for drivers searching for a Buick Lucerne rear left window regulator and motor assembly, a 2006-2011 Buick Lucerne power window repair part, or a Dorman 748-112 window motor and regulator assembly.

This part cross-references ACI 82187 for the same application.

Common Problems This Part Can Address

  • Rear window glass that will not move up or down
  • Slow, uneven, or intermittent window operation
  • Noise from a worn regulator or motor assembly
  • Failure of the original rear left window mechanism
  • Restoring normal power window function on Buick Lucerne models

Installation Notes

Installation instructions are not included. Mounting hardware is not included. Verify rear left fitment by matching the vehicle year, make, model, and door position before installation. Because this assembly uses a bolt attachment design and a plastic gear material, careful alignment during installation helps ensure smooth window travel and proper engagement.

Quality Assurance

Dorman manufactures this replacement assembly to match the original equipment regulator’s fit and operating characteristics on the specified Buick Lucerne applications. The part is extensively tested during development to confirm function and performance before release.

Related reading

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2011BuickLucerneRear Left—
2010BuickLucerneRear Left—
2009BuickLucerneRear Left—
2008BuickLucerneRear Left—
2007BuickLucerneRear Left—
2006BuickLucerneRear Left—
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACI — 82187821060ar15929734WLA2123