Make sure this part fits

GM 8646939 PUMP, Transmission Oil Pump

1984-1986 GM

Customer Questions & Expert Answers (2)
GM 8646939 PUMP, Transmission Oil Pump
  • Part Description
    PUMP, Transmission Oil Pump
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number8646939
    Part DescriptionPUMP, Transmission Oil Pump
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU8646939
    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
    1984-1986 Buick Century4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.8L, 6 Cyl 4.3L DieselCUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR
    1985-1986 Buick Electra6 Cyl 3.0L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel, 8 Cyl 5.0L2 DOOR, 4 DOOR, COUPE 2 DOOR, SEDAN 4 DOOR, T-TYPE COUPE 2 DOOR, T-TYPE SEDAN 4 DOOR
    1986 Buick Lesabre6 Cyl 3.0L, 6 Cyl 3.8LCUSTOM 2 DOOR, CUSTOM 4 DOOR, LIMITED 2 DOOR, LIMITED 4 DOOR
    1986 Buick Riviera6 Cyl 3.8LRIVIERA, T TYPE
    1985-1986 Cadillac Deville6 Cyl 4.3L Diesel, 8 Cyl 4.1L2 DOOR, 4 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 4 DOOR FWD, FUNERAL COACH, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART
    1985-1986 Cadillac Fleetwood6 Cyl 4.3L Diesel, 8 Cyl 4.1L, 8 Cyl 5.0L, 8 Cyl 5.7L Diesel2 DOOR, 4 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 4 DOOR FWD, FUNERAL COACH, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART
    1984-1986 Chevrolet Celebrity4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 4.3L Diesel2 DOOR, 4 DOOR, STATION WAGON
    1985-1986 Oldsmobile 986 Cyl 3.0L, 6 Cyl 3.8L, 6 Cyl 4.3L DieselREGENCY 2 DOOR, REGENCY 4 DOOR, REGENCY BROUGH 2 DOOR, REGENCY BROUGH 4 DOOR
    1984-1986 Oldsmobile Cutlass4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR NOTCHBACK, BROUGHAM 4 DOOR, BROUGHAM SL 2 DOOR, LS 2 DOOR, LS 2 DOOR NOTCHBACK, LS 4 DOOR, LS STATION WAGON, S 2 DOOR
    1986 Oldsmobile Delta 886 Cyl 3.0L, 6 Cyl 3.8L2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR
    View More
  • Customer Questions & Expert Answers

    Q:
    Do these parts fit my vehicle? Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 8646939 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How can gear tip wear be measured for the 1977 Buick Century? Posted by Customer
    A:
    By passing a narrow feeler gauge between the oil pump housing wall and the tips of the gear teeth.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Oil Pump
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine GM Part 8646939, the Right Choice

Your vehicle deserves only genuine OEM GM parts and accessories. To ensure reliability, purchase GM part # 8646939 PUMP, Transmission Oil Pump. It is sometimes referred to as GM Oil Pump. Our GM parts and accessories are expedited directly from authorized GM dealers strategically located all across the U.S. and are backed by the manufacturer's 12 month, 12,000 mile warranty. OEM GM parts are the best for restoring your vehicle to factory condition performance. This part fits specific Buick Century, Electra, Lesabre models. It fits Cadillac Deville, Fleetwood. It also fits Chevrolet Celebrity. This also fits Pontiac 6000.

Affordable, reliable and built to last, GM part # 8646939 PUMP, Transmission Oil Pump stands out as the smart option. GMPartsGiant.com is your prime online source with the biggest and best selection of genuine GM parts and accessories at giant discounted prices. We have the OEM GM parts and accessories you need at the wholesale prices. GMPartsGiant.com has you covered no matter what type of GM vehicle you drive. For detailed Chevrolet parts information, click here.

Why choose GM Parts Giant

  • Dedicated Service

    Your complete satisfaction is our #1 goal

  • Lowest Prices

    Best deals on genuine OE parts from dealerships

  • Fast Delivery

    Orders are processed and delivered promptly