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Pontiac 10159438 Piston & Piston Pinion Assembly, .030 Outside

1990-1997 Pontiac Firebird

Customer Questions & Expert Answers (3)
10159438 GM Piston & Piston Pinion Assembly, .030 Outside Illustration 1 of 1
  • Part Description
    PISTON, Engine Piston
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Pontiac
    Manufacturer Part Number10159438
    Part DescriptionPISTON, Engine Piston
    Item Dimensions5.1 x 4.8 x 4.9 inches
    Item Weight1.90 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Require Quantity8
    ManufacturerGeneral Motors
    SKU10159438
    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
    1990-1997 Pontiac Firebird8 Cyl 5.7L2 DOOR, CONVERTIBLE
  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 10159438 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What is the procedure for loosening the connecting rod cap nuts for the Piston in the 1992 Pontiac Firebird? Posted by Ssamvel G.
    A:
    Loosen each connecting rod cap nut about half a turn, then remove the number one connecting rod cap and bearing insert without dropping the insert. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Xavier / Feb 03, 2023
    Q:
    What should be checked after installation of the connecting rod and Piston for the 1990 Pontiac Firebird? Posted by Mcdaniel A.
    A:
    After installation, check the connecting rod bearing oil clearance before permanently bolting the rod cap in place by laying a piece of Plastigage on the number one connecting rod journal. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Julian / Mar 10, 2024

Genuine GM Part 10159438, the Right Choice

To ensure reliability, purchase GM part # 10159438 Piston & Piston Pinion Assembly, .030 Outside. It is sometimes referred to as Pontiac 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 Pontiac Firebird models.

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