Make sure this part fits

GM 12563089 Piston Asm (0.005 Oversize)

1990-1991 GM

Customer Questions & Expert Answers (3)
GM 12563089 Piston Asm (0.005 Oversize)
  • Part Description
    PISTON, Engine Piston
  • Replaces
    12555795, 10232018
  • 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 Number12563089
    Part DescriptionPISTON, Engine Piston
    Item Dimensions4.7 x 4.5 x 4.4 inches
    Item Weight2.20 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12555795, 10232018
    ManufacturerGeneral Motors
    SKU12563089
    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
    1990-1991 Chevrolet Blazer1/2 TON
    1991 Chevrolet C15008 Cyl 7.4LC1500 EXTENDED CAB LONG BOX, C1500 EXTENDED CAB STANDARD BOX, C1500 REGULAR CAB LONG BOX, C1500 REGULAR CAB STANDARD BOX
    1991 Chevrolet C25008 Cyl 7.4LC2500 EXTENDED CAB LONG BOX, C2500 EXTENDED CAB STANDARD BOX, C2500 REGULAR CAB
    1991 Chevrolet C35008 Cyl 7.4LC3500 CAB CHASSIS 135.5, C3500 CAB CHASSIS 159.9, C3500 CAB CHASSIS 183.5, C3500 EXTENDED CAB, C3500 REGULAR CAB
    1990-1991 Chevrolet G101/2 TON CARGO, 1/2 TON PASSENGER
    1990-1991 Chevrolet G203/4 TON CARGO, 3/4 TON PASSENGER
    1990-1991 Chevrolet G308 Cyl 7.4L1 TON CARGO, 1 TON COMMERCIAL/RECREATIONAL VEHICLE, 1 TON PASSENGER
    1991 Chevrolet K1500K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX
    1991 Chevrolet K25008 Cyl 7.4LK2500 EXTENDED CAB LONG BOX, K2500 EXTENDED CAB STANDARD BOX, K2500 REGULAR CAB
    1991 Chevrolet K35008 Cyl 7.4LK3500 CAB CHASSIS 135.5, K3500 CAB CHASSIS 159.9, K3500 EXTENDED CAB, K3500 REGULAR CAB
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  • 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 12563089 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    What should be done to ensure the bearing faces are clean for the 1991 Chevrolet C1500? Posted by Customer
    A:
    Afterward, scrape off all Plastigage material from the rod journal and bearing face without causing any damage, ensuring the bearing faces are impeccably clean.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Piston
    Q:
    What should be done with the connecting rod caps and bearing inserts after removal for the 1991 Chevrolet K1500? Posted by Customer
    A:
    After removal, reassemble the connecting rod caps and bearing inserts in their respective connecting rods and install the cap nuts finger-tight. Leaving the old bearing inserts in place until reassembly will help prevent the connecting rod bearing surfaces from being accidentally nicked or gouged.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Piston
    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 12563089, the Right Choice

To ensure reliability, purchase GM part # 12563089 Piston Asm (0.005 Oversize). It is sometimes referred to as GM Piston. 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 Chevrolet Blazer, G20, K3500 models. It fits GMC C2500, K1500, Suburban.

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