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Buick 8685141 Pump Assembly, Automatic Transmission Oil

2006-2011 Buick Lucerne

Customer Questions & Expert Answers (3)
8685141 GM Pump Assembly, Automatic Transmission Oil Illustration 1 of 1
  • Part Description
    PUMP, Transmission Oil Pump
  • Replaces
    8684949
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Buick
    Manufacturer Part Number8685141
    Part DescriptionPUMP, Transmission Oil Pump
    Item Dimensions5.2 x 13.7 x 13.1 inches
    Item Weight11.60 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces8684949
    ManufacturerGeneral Motors
    SKU8685141
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2006-2011 Buick Lucerne6 Cyl 3.8L, 6 Cyl 3.9L, 6 Cyl 3.9L Flex, 8 Cyl 4.6LCX 4 DOOR, CXL, CXL 4 DOOR, CXS, V6 CX/CXL 4 DOOR, V8 CXL/SUPER 4 DOOR, V8 SUPER SERIES 4 DOOR
  • Customer Questions & Expert Answers

    Q:
    Do these parts fit my vehicle?
    A:
    You can Select Your Vehicle to check if 8685141 fits your vehicle.
    Posted and answered by GM Parts Specialist Raul
    Q:
    What should be done after installing the new filter, adding oil, and checking the Oil Pump for the 1999 Cadillac Deville? Posted by Voltaire A.
    A:
    Start the engine and check for oil leaks, then recheck the engine oil level. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Jan 04, 2025
    Q:
    How should the Oil Pump mounting bolts be secured for the 2007 Cadillac DTS? Posted by Wylie C.
    A:
    The oil pump mounting bolts should be secured in their original locations, tightening them to the specified torque in the correct sequence: start with the bolt in the lower left corner, followed by the one in the right corner, and finish with the upper left side bolt. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Feb 11, 2026

Genuine GM Part 8685141, the Right Choice

To ensure reliability, purchase GM part # 8685141 Pump Assembly, Automatic Transmission Oil. It is sometimes referred to as Buick Oil Pump. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Buick Lucerne models.

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