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Cadillac 8655985 Body,Automatic Transmission Oil Pump

1982-1990 Cadillac

Customer Questions & Expert Answers (15)
GM 8655985 Body,Automatic Transmission Oil Pump
  • Part Description
    BODY, 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 Cadillac
    Manufacturer Part Number8655985
    Part DescriptionBODY, Transmission Oil Pump
    Item Dimensions9.5 x 10.1 x 2.6 inches
    Item Weight4.70 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU8655985
    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
    1987-1990 Cadillac Brougham8 Cyl 5.0L, 8 Cyl 5.7LBROUGHAM 4 DOOR, BROUGHAM 4 DOOR RWD
    1982-1984 Cadillac Deville6 Cyl 4.1L, 8 Cyl 4.1L, 8 Cyl 5.7L Diesel2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR, FORMAL LIMOUSINE, LIMOUSINE
    1982-1986 Cadillac Fleetwood6 Cyl 4.1L, 8 Cyl 4.1L, 8 Cyl 5.0L, 8 Cyl 5.7L Diesel, 8 Cyl 6.0L2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR RWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR RWD, FORMAL LIMOUSINE, LIMOUSINE
  • Customer Questions & Expert Answers

    Q:
    Do these parts fit my vehicle? Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 8655985 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How can the oil pump and screen be accessed on Buick Regal? Posted by Customer
    A:
    Through removing the oil pan, the oil pump and screen can be accessed. For Buick engines, you should put the driveshaft extension via the main bearing cap until it mates with the distributor drive gear. Thereafter, put the pump on top of the cap and secure it using bolts. In 231, 252 and 350 Buick engines, however, the oil pump is located in the timing chain cover and is connected to a pipe assembly and oil screen housing in the pan. To remove them, you must first take out the oil filter. The cover assembly now becomes removable allowing one to remove oil pump gears. For that case, it's important that gears should be cleaned as well as inspected for defects. Oil pump gear wear specifications are also available for 1981-87 engines. Gear tip wear can be measured by passing a narrow feeler gauge between gear teeth tips and wall of the oil pump housing. Checking for any wear or scoring on its surface then is necessary concerning lubrication of relief valve along with spring using clean engine oil so that they can be placed in cover again. When reinstalling gears petroleum jelly must fill up inside of an oil pump gear cavity. This time around when installing use new gasket and sealer on a cover assembly as well as use a final step to install an oil filler.
    Posted by GMPartsGiant Specialist
    Q:
    Is there anything else that may need to be extracted from the pump body for the 1984 Chevrolet Caprice? Posted by Customer
    A:
    If needed, extract the pick-up screen and pipe assembly from the pump body.
    Posted by GMPartsGiant Specialist
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    Q:
    What should be checked regarding the oil pump screen during installation for the 1984 Chevrolet Caprice? Posted by Customer
    A:
    Ensure that the oil pump screen is parallel with the oil pan rails for proper fitting into the oil pan.
    Posted by GMPartsGiant Specialist
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    Q:
    What should be done if any gears are found to be unserviceable for the 1985 Chevrolet Caprice? Posted by Customer
    A:
    Replace any unserviceable gears with new ones.
    Posted by GMPartsGiant Specialist
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    Q:
    Why is it important to pack the gear pocket with petroleum jelly for the 1986 Chevrolet Caprice? Posted by Customer
    A:
    The pump may not prime if the pocket is not adequately packed.
    Posted by GMPartsGiant Specialist
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    Q:
    What should be done after installing the oil pan for the 1986 Chevrolet El Camino? Posted by Customer
    A:
    Pay close attention to the oil pressure gauge or warning light during the initial engine start-up period.
    Posted by GMPartsGiant Specialist
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    Q:
    What is the order of installation for the components during reassembly for the 1985 Chevrolet El Camino? Posted by Customer
    A:
    Install the pressure regulator valve and related parts first, followed by the drive gear and shaft in the pump body, then the idler gear with the smooth side facing the pump cover opening, lubricating the parts with engine oil.
    Posted by GMPartsGiant Specialist
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    Q:
    What is the first step in the oil pump maintenance process for the 1987 Chevrolet El Camino? Posted by Customer
    A:
    Unscrew and remove the oil filter.
    Posted by GMPartsGiant Specialist
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    Q:
    What is the acceptable clearance measurement for the gear end and side clearance for the 1986 Chevrolet El Camino? Posted by Customer
    A:
    The clearance should be between 0.002 to 0.006 inches.
    Posted by GMPartsGiant Specialist
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    Q:
    How do you check the gear end clearance and side clearance after installing the oil pump gear and shaft for the 1982 Oldsmobile Cutlass? Posted by Customer
    A:
    Insert the oil pump gear and shaft into the oil pump body section of the timing chain cover, then use a straightedge over the gears to measure the clearance between the gears and the gasket surface.
    Posted by GMPartsGiant Specialist
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    Q:
    What is the final step in the installation process for the 1989 Pontiac Firebird? Posted by Customer
    A:
    The final step is to install the mounting bolts and nut, tightening them to the specified torque, and then reinstall the oil pan.
    Posted by GMPartsGiant Specialist
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    Q:
    What is the first step in the process for the 1989 Pontiac Firebird? Posted by Customer
    A:
    Remove the oil pan.
    Posted by GMPartsGiant Specialist
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    Q:
    What is the next step after removing the screws for the 1986 Oldsmobile Cutlass? Posted by Customer
    A:
    Remove the cover assembly and slide out the oil pump gear.
    Posted by GMPartsGiant Specialist
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    Q:
    What is the procedure for installing the oil pump assembly for the 1985 Oldsmobile Cutlass? Posted by Customer
    A:
    Position the pump assembly and align the slot on the top end of the extension shaft with the drive tang on the lower end of the distributor, ensuring proper mating between these components since the distributor drives the oil pump.
    Posted by GMPartsGiant Specialist
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    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 8655985, the Right Choice

To ensure reliability, purchase GM part # 8655985 Body,Automatic Transmission Oil Pump. It is sometimes referred to as Cadillac 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 Cadillac Brougham, Deville, Fleetwood models.

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