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Buick 8665230 PUMP,W/CO

1982-1988 Buick

Customer Questions & Expert Answers (7)
GM 8665230 PUMP,W/CO
  • 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 Buick
    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
  • Customer Questions & Expert Answers

    Q:
    Do these parts fit my vehicle? Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 8665230 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    Is it more practical and economical to replace a faulty oil pump with a new or rebuilt unit, and what steps should be taken if an overhaul is chosen on Buick Skylark? Posted by Customer
    A:
    In most cases, it is more practical and economical to replace a faulty oil pump with a new or rebuilt unit, but if an overhaul is chosen, check on the availability of internal parts beforehand. Begin by removing the pump cover retaining screws and the pump cover, marking the gear teeth for reassembly. Next, take out the idler gear, drive gear, and shaft from the body. Remove the pressure regulator valve retaining pin using needle-nose pliers, followed by the regulator valve and its related parts. For V6 engines, the pick-up screen and pipe assembly can be extracted from the pump body, while on L4 engines, the screen assembly is factory-fitted and cannot be separated. Clean all parts in solvent and dry them thoroughly, inspecting the body for cracks, wear, or other damage, and replace the gears if they show excessive wear. Check the drive gear shaft for looseness in the pump body and inspect the inside of the pump cover for wear that could allow oil leakage past the gears; if either the gears or body are worn or damaged, the entire assembly must be replaced. Inspect the pick-up screen and pipe assembly for damage, and if the V6 screen assembly was removed, replace it with a new one. Apply gasket sealant to the end of the pipe and carefully tap it into the pump body to avoid damage. Install the pressure regulator valve and related parts, followed by the drive gear and shaft in the pump body, then the idler gear with the smooth side toward the pump cover opening, lubricating the parts with engine oil. Finally, install the cover and torque tighten the screws, then turn the driveshaft to ensure that the pump operates freely.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove and reinstall the oil pump and oil pan in V6 engine on Pontiac Fiero? Posted by Customer
    A:
    Before you do this let the oil pan reside and then pull the pump with the help of pump to rear main bearing cap bolt, finally, let the pump and extension shaft to be separated from the engine. For detailed overhauls and inspection procedures relating to the oil pump see the relevant part. To install this pump, place the hexagonal extension shaft in the hexagonal socket at the lower end of the distributor drive gear ; correct alignment is necessary as the distributor drives the oil pump. To replace the rear main seal install the oil pump-to-rear main bearing cap bolt and tighten it to the specified torque, then reinstall the oil pan. Add the required quantity of oil and check if the oil is present in the necessary quantity and also examine the oil pressure gauge with a special reference to leaks.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove and install the oil pump and oil pan on Oldsmobile Omega? Posted by Customer
    A:
    Remove the oil pan. For L4 engines, take out the two oil pump flange mounting bolts and the nut from the main bearing cap bolt. For V6 engines, remove the bolt that secures the pump to the rear main bearing cap. Lift off the oil pump and screen as an assembly. To install, align the pump shaft to mate with the oil pump drive shaft tang. Position the oil pump housing flange and install the mounting bolt(s), ensuring no gasket is needed between the pump flange and the block. For L4 engines, install the oil pump screen bracket over the main bearing cap bolt and secure it with the nut. Torque the pump mounting bolt(s) and main bearing nut to specifications. Finally, install the oil pan.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove and install the oil pump and screen assembly in four cylinder engine on Pontiac Fiero? Posted by Customer
    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.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove and install the oil pump and oil pan on Pontiac Phoenix? Posted by Customer
    A:
    Remove the oil pan. For L4 engines, take out the two oil pump flange mounting bolts and the nut from the main bearing cap bolt. For V6 engines, remove the bolt that secures the pump to the rear main bearing cap. Lift off the oil pump and screen as an assembly. To install, align the pump shaft to mate with the oil pump drive shaft tang. Position the oil pump housing flange and install the mounting bolt(s), ensuring no gasket is needed between the pump flange and the block. For L4 engines, install the oil pump screen bracket over the main bearing cap bolt and secure it with the nut. Torque the pump mounting bolt(s) and main bearing nut to specifications. Finally, install the oil pan.
    Posted by GMPartsGiant Specialist
    Q:
    How do you install the oil pump and driveshaft extension for a V6 engine for the 1987 Pontiac Fiero? Posted by Customer
    A:
    Install the oil pump and driveshaft extension, engaging the driveshaft extension in the distributor drive gear, followed by the pump-to-rear bearing cap bolt, tightening it to the specified torque.
    Posted by GMPartsGiant Specialist
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Genuine GM Part 8665230, the Right Choice

To ensure reliability, purchase GM part # 8665230 PUMP,W/CO. 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 Skylark, Somerset models.

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