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GM 12640448 Pump,Oil

2004-2024 GM

Customer Questions & Expert Answers (3)
GM 12640448 Pump,Oil
  • Part Description
    PUMP, Engine Oil Pump
  • Replaces
    12590152, 12584298, 12590016
  • Manufacturer
    General Motors
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  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12640448
    Part DescriptionPUMP, Engine Oil Pump
    Other NamesOil Pump, Water Pump
    Item Dimensions9.9 x 5.3 x 5.4 inches
    Item Weight3.20 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12590152, 12584298, 12590016
    ManufacturerGeneral Motors
    SKU12640448
    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
    2010-2015, 2005-2008 Buick Allure6 Cyl 3.0L, 6 Cyl 3.6LCX (US)/ALLURE CX (CAN), CX 4 DOOR, CX 4 DOOR SEDAN, CXL 4 DOOR, CXL 4 DOOR SEDAN, CXL(US)/ALLURE CXL(CAN), CXS 4 DOOR, CXS 4 DOOR SEDAN, CXS(US)/Allure CXS(CAN), SPS 4 DOOR SEDAN, SUPER SERIES 4 DOOR
    2008-2024 Buick Enclave6 Cyl 3.6LBASE EXTENDED 4 DOOR SUV, PREMIUM 1 EXTENDED 4 DOOR SUV, PREMIUM 2 EXTENDED 4 DOOR SUV, SPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE 4WD, SPORT UTILITY VEHICLE AWD
    2010-2016, 2005-2008 Buick LaCrosse6 Cyl 3.0L, 6 Cyl 3.6LCX (US)/ALLURE CX (CAN), CX 4 DOOR, CX 4 DOOR SEDAN, CXL 4 DOOR, CXL 4 DOOR SEDAN, CXL(US)/ALLURE CXL(CAN), CXS 4 DOOR, CXS 4 DOOR SEDAN, CXS(US)/Allure CXS(CAN), SPS 4 DOOR SEDAN, SUPER SERIES 4 DOOR
    2004-2006 Buick Rendezvous6 Cyl 3.6LAWD, RENDEZVOUS
    2013-2019 Cadillac ATS6 Cyl 3.6L2 DOOR LUXURY COUPE, 2 DOOR PERFORMANCE COUPE, 3 DOOR PREMIUM COUPE, 4 DOOR LUXURY SEDAN, 4 DOOR PERFORMANCE SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN, V-SERIES 2 DOOR COUPE, V-SERIES 4 DOOR SEDAN
    2022-2024 Cadillac CT46 Cyl 3.6LV-SERIES NOTCHBACK-BLACKWING
    2004-2019 Cadillac CTS6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.6L2 DOOR COUPE, 4 DOOR, 4 DOOR (RHD), 4 DOOR PERFORMANCE SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR RHD, 4 DOOR SEDAN, 4 DOOR SEDAN(RHD), 4 DOOR STATION WAGON, 4 DOOR STATION WAGON(RHD), 4 DOOR WAGON, 4 DOOR WAGON(RHD), 4 DOOR(RHD), V 4 DOOR
    2004-2016 Cadillac SRX6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.6L4 DOOR, 4 DOOR(RHD), CROSSOVER 4 DOOR, SRX, V8 4 DOOR
    2005-2011 Cadillac STS6 Cyl 3.6L4 DOOR, 4 DOOR(RHD)
    2013-2019 Cadillac XTS6 Cyl 3.6L4 DOOR NOTCHBACK, LUXURY 4 DOOR NOTCHBACK, PLATINUM 4 DOOR NOTCHBACK, PREMIUM 4 DOOR NOTCHBACK
    View More
  • Customer Questions & Expert Answers

    Q:
    I am wonder if this is complete and correct part for my vehicle. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 12640448 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove and reinstall the oil pump in an engine? Posted by Customer
    A:
    Remove the timing chains. After noting the installed position, remove the timing chain sprocket from the crankshaft. Remove the oil pump retaining bolts and slide the pump off the end of the crankshaft (Oil pump retaining bolts). Remove the timing chain guide from the oil pump housing then remove the oil pump cover and withdraw the rotors from the pump body. Remove the snap-ring from the side of the pump housing and withdraw the cap, spring and plunger from the oil pump housing. These components are the oil pressure relief valve assembly. Clean the components with solvent, dry them thoroughly and inspect for any obvious damage. Also check the bolt holes for damaged threads and the splined surfaces on the crankshaft sprocket for any apparent damage. If any of the components are scored, scratched or worn, replace the entire oil pump assembly. There are no serviceable parts currently available. If re-using the oil pump, assemble the pressure relief valve components and the rotors to the oil pump housing. Prior to installing the cover, prime the pump by pouring clean motor oil between the rotors. Install the cover and tighten the retaining bolts. Position the oil pump over the end of the crankshaft and align the flats on the crankshaft with the flats on the oil pump drive gear. Make sure the pump is fully seated against the block. Install the oil pump mounting bolts and tighten them to the torque. The remainder of installation is the reverse of removal. Add oil and coolant as necessary. Run the engine and check for oil and coolant leaks. Check the oil pressure.
    Posted by GMPartsGiant Specialist
    Q:
    Is there an o-ring at the back of the pump around the larger diameter hole? Posted by Customer: 2009 Buick Enclave (2WD)
    A:
    NO THERE IS NOT...
    Posted by GMPartsGiant Specialist 9/8/2023
    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 12640448, the Right Choice

To ensure reliability, purchase GM part # 12640448 Pump,Oil. 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 Cadillac ATS, CTS, SRX models. It fits Chevrolet Camaro, Equinox, Impala. It also fits GMC Acadia, Canyon, Terrain. This also fits Saturn Aura, Outlook, Vue.

GMPartsGiant.com is a leading supplier of genuine GM parts and accessories such as GM 12640448 Pump,Oil. You're certainly in the right place if you're searching for the great cost-effective OEM GM parts. Look no further than our vast inventory of genuine GM parts offered at unbeatable online prices, all of which are backed by the manufacturer's warranty. Not to forget, our hassle-free return policy and quick delivery service ensure a smooth shopping experience for you. For detailed GMC parts information, click here.

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