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GMC 14093990 Piston & Piston Pinion Assembly, Service Std.High Limit

1987-1996 GMC

Customer Questions & Expert Answers (7)
GM 14093990 Piston & Piston Pinion Assembly, Service Std.High Limit
  • 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
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number14093990
    Part DescriptionPISTON, Engine Piston
    Item Dimensions4.7 x 4.4 x 4.3 inches
    Item Weight2.10 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Require Quantity8
    ManufacturerGeneral Motors
    SKU14093990
    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 GMC C15008 Cyl 5.0L, 8 Cyl 5.7LC1500 EXTENDED CAB LONG BOX, C1500 EXTENDED CAB STANDARD BOX, C1500 REGULAR CAB LONG BOX, C1500 REGULAR CAB STANDARD BOX
    1990-1995 GMC C25008 Cyl 5.0L, 8 Cyl 5.7LC2500 EXTENDED CAB LONG BOX, C2500 EXTENDED CAB STANDARD BOX, C2500 REGULAR CAB
    1990-1995 GMC C35008 Cyl 5.7LC3500 CAB CHASSIS 135.5, C3500 CAB CHASSIS 159.9, C3500 CAB CHASSIS 183.5, C3500 CREW CAB LONG WHEELBASE, C3500 EXTENDED CAB, C3500 REGULAR CAB
    1987-1991 GMC G15008 Cyl 5.0L, 8 Cyl 5.7L1/2 TON CARGO, 1/2 TON PASSENGER
    1987-1991 GMC G25008 Cyl 5.0L, 8 Cyl 5.7L3/4 TON CARGO, 3/4 TON PASSENGER
    1987-1996 GMC G35008 Cyl 5.7L1 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
    1987-1991 GMC Jimmy8 Cyl 5.7L1/2 TON
    1990-1991 GMC K15008 Cyl 5.0L, 8 Cyl 5.7LK1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX
    1990-1995 GMC K25008 Cyl 5.0L, 8 Cyl 5.7LK2500 EXTENDED CAB LONG BOX, K2500 EXTENDED CAB STANDARD BOX, K2500 REGULAR CAB
    1990-1995 GMC K35008 Cyl 5.7LK3500 CAB CHASSIS 135.5, K3500 CAB CHASSIS 159.9, K3500 CREW CAB LONG 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 14093990 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    What should you do before attaching a piston ring compressor to the piston for the 1998 Chevrolet C1500? Posted by Customer
    A:
    Maintain piston ring gap spacing and lubricate the piston and rings with clean engine oil.
    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 1993 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 is the first step in the inspection process for the piston/connecting rod assemblies for the 1995 Chevrolet C1500? Posted by Customer
    A:
    Ensuring they are clean and removing the original piston rings from the pistons.
    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 1996 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 1996 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
    Q:
    How should you apply lubricant to the connecting rod bearing surfaces for the 1995 Chevrolet K1500? Posted by Customer
    A:
    Apply a uniform layer of clean moly-base grease or engine assembly lube to both surfaces.
    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 14093990, the Right Choice

To ensure reliability, purchase GM part # 14093990 Piston & Piston Pinion Assembly, Service Std.High Limit. It is sometimes referred to as GMC 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 GMC C2500, K1500, Suburban models.

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