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Make sure this part fits

GMC 12563090 Piston Asm (0.030 Oversize)

1990-2000 GMC

Customer Questions & Expert Answers (7)
GM 12563090 Piston Asm (0.030 Oversize)
GM 12563090 Piston Asm (0.030 Oversize)
  • Part Description
    PISTON, Engine Piston
  • 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

  • Related Parts

    Shop for related parts for your vehicle

  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number12563090
    Part DescriptionPISTON, Engine Piston
    Item Dimensions4.9 x 4.8 x 4.9 inches
    Item Weight2.20 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12563090
    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
    1991-1993 GMC C1500C1500 EXTENDED CAB LONG BOX, C1500 EXTENDED CAB STANDARD BOX, C1500 REGULAR CAB LONG BOX, C1500 REGULAR CAB STANDARD BOX
    1996-2000, 1991-1993 GMC C25008 Cyl 7.4LC2500 CREW CAB, C2500 EXTENDED CAB LONG BOX, C2500 EXTENDED CAB STANDARD BOX, C2500 REGULAR CAB
    1996-2000, 1991-1993 GMC C35008 Cyl 7.4LC3500 CAB CHASSIS 135.5, C3500 CAB CHASSIS 159.9, C3500 CAB CHASSIS 183.5, C3500 CREW CAB LONG WHEELBASE, C3500 CREW CAB SHORT WHEELBASE, C3500 EXTENDED CAB, C3500 REGULAR CAB, K2500 EXTENDED CAB STANDARD BOX
    1990-1991 GMC G15001/2 TON CARGO, 1/2 TON PASSENGER
    1990-1991 GMC G25003/4 TON CARGO, 3/4 TON PASSENGER
    1990-1996 GMC G35008 Cyl 7.4L1 TON CARGO, 1 TON CARGO CLASSIC, 1 TON CARGO VAN, 1 TON COMMERCIAL/RECREATIONAL VEHICLE, 1 TON COMMERCIAL/RV CLASSIC, 1 TON PASSENGER, 1 TON PASSENGER CLASSIC
    1990-1991 GMC Jimmy1/2 TON
    1991-1993 GMC K1500K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX
    1996-2000, 1991-1993 GMC K25008 Cyl 7.4LK2500 CREW CAB, K2500 EXTENDED CAB LONG BOX, K2500 EXTENDED CAB STANDARD BOX, K2500 REGULAR CAB
    1996-2000, 1991-1993 GMC K35008 Cyl 7.4LK3500 CAB CHASSIS 135.5, K3500 CAB CHASSIS 159.9, K3500 CREW CAB LONG WHEELBASE, K3500 CREW CAB SHORT WHEELBASE, 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 12563090 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    What should you do after all pistons/connecting rods are installed for the 1995 Chevrolet C1500? Posted by Customer
    A:
    Finally, rotate the crankshaft by hand to check for any obvious binding.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Piston
    Q:
    How should you protect the crankshaft journal and cylinder wall when removing the piston/connecting rod assemblies for the 1996 Chevrolet C1500? Posted by Customer
    A:
    Slip a short length of plastic or rubber hose over each connecting rod cap bolt to protect the crankshaft journal and cylinder wall when the piston is removed.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Piston
    Q:
    What should be done if reboring and new pin installation are needed for the 1998 Chevrolet C1500? Posted by Customer
    A:
    Automotive machine shop assistance should be sought.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Piston
    Q:
    What should you do after all pistons/connecting rods are installed for the 1989 Chevrolet K1500? Posted by Customer
    A:
    Finally, rotate the crankshaft by hand to check for any obvious binding.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Piston
    Q:
    What should be done if reboring and new pin installation are needed for the 1988 Chevrolet K1500? Posted by Customer
    A:
    Automotive machine shop assistance should be sought.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Piston
    Q:
    What tool can be used to facilitate the removal of the upper bearing insert in the connecting rod for the 1999 Chevrolet K1500? Posted by Customer
    A:
    Use a wooden hammer handle to push on the upper bearing insert in the connecting rod. If resistance is felt, double-check to make sure all of the ridge was removed from the cylinder.
    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 12563090, the Right Choice

Your vehicle deserves only genuine OEM GM parts and accessories. To ensure reliability, purchase GM part # 12563090 Piston Asm (0.030 Oversize). It is sometimes referred to as GMC Piston. 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 GMC C2500, K1500, Suburban models.

Affordable, reliable and built to last, GM part # 12563090 Piston Asm (0.030 Oversize) 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 GMC parts information, click here.

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