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GM 8665230 PUMP,W/CO

1982-1988 GM

Customer Questions & Expert Answers (2)
8665230 GM PUMP,W/CO Illustration 1 of 1
  • Part Description
    PUMP, Transmission Oil Pump
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number8665230
    Part DescriptionPUMP, Transmission Oil Pump
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU8665230
    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
    1982-1988 Buick Skylark4 Cyl 2.3L, 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L2 DOOR, 4 DOOR, CUSTOM, CUSTOM 2 DOOR, CUSTOM 4 DOOR, LIMITED, LIMITED 2 DOOR, LIMITED 4 DOOR, SKYLARK, SOMERSET, T-TYPE
    1985-1987 Buick Somerset4 Cyl 2.5L, 6 Cyl 3.0L2 DOOR, CUSTOM, LIMITED, LIMITED 2 DOOR, LIMITED 4 DOOR, REGAL, REGAL LIMITED, SOMERSET, T-TYPE
    1982-1985 Chevrolet Citation4 Cyl 2.5L, 6 Cyl 2.8L2 DOOR, 2 DOOR NOTCHBACK, 2 DOOR PLAINBACK HATCHBACK, 4 DOOR
    1985-1988 Oldsmobile Calais4 Cyl 2.3L, 4 Cyl 2.5L, 6 Cyl 3.0L2 DOOR, 4 DOOR, INTERNATIONAL 2 DOOR, INTERNATIONAL 4 DOOR, SUPREME 2 DOOR, SUPREME 4 DOOR
    1982-1984 Oldsmobile Omega4 Cyl 2.5L, 6 Cyl 2.8L2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR
    1984-1988 Pontiac Fiero4 Cyl 2.5L, 6 Cyl 2.8L2 DOOR, GT 2 DOOR, SE 2 DOOR, SPORT 2 DOOR
    1982-1984 Pontiac Phoenix4 Cyl 2.5L, 6 Cyl 2.8L2 DOOR, 4 DOOR, LJ 2 DOOR, LJ 4 DOOR
  • Customer Questions & Expert Answers

    Q:
    Do these parts fit my vehicle?
    A:
    You can Select Your Vehicle to check if 8665230 fits your vehicle.
    Posted and answered by GM Parts Specialist Raul
    Q:
    How to remove and install the Oil Pump and screen assembly in four cylinder engine on Pontiac Fiero? Posted by Mahmoud J.
    A:
    Remove the oil pan, then take out the two oil pump flange mounting bolts and the filter bracket nut from the main bearing cap bolt. Next, remove the oil pump and screen assembly. For installation, align the shaft so that the gear tang mates with the slot on the lower end of the oil pump driveshaft, ensuring the oil pump slides easily into place over the oil pump driveshaft lower bushing; if it doesn't, adjust the tang until it aligns properly. After that, install the pump mounting bolts and the filter bracket nut, tightening them to the specified torque, and finally, reinstall the oil pan.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Apr 24, 2025

Genuine GM Part 8665230, the Right Choice

To ensure reliability, purchase GM part # 8665230 PUMP,W/CO. It is sometimes referred to as GM 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 Skylark, Somerset models. It fits Chevrolet Citation. It also fits Oldsmobile Calais, Omega. This also fits Pontiac Fiero, Phoenix.

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