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Buick 10112445 Piston Assembly

1990-1992 Buick Century

Customer Questions & Expert Answers (3)
10112445 GM Piston Assembly 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 Buick
    Manufacturer Part Number10112445
    Part DescriptionPISTON, Engine Piston
    Item Dimensions4.6 x 4.5 x 4.2 inches
    Item Weight2.10 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Require Quantity4
    ManufacturerGeneral Motors
    SKU10112445
    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
    1990-1992 Buick Century4 Cyl 2.5LCUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 4 DOOR, SPECIAL 4 DOOR
  • 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 10112445 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What technique should be used to guide the connecting rod and Piston onto the crankshaft journal for the 1990 Chevrolet Astro? Posted by Adonis G.
    A:
    Gently tap the piston with a wooden hammer handle while guiding the connecting rod onto the crankshaft journal, being cautious of any resistance. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jose / Sep 15, 2024
    Q:
    How should the connecting rod cap nuts be loosened for the Piston in the 1990 Chevrolet Astro? Posted by Rudy A.
    A:
    Loosen each connecting rod cap nut gradually until they can be removed by hand. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Jul 23, 2025

Genuine GM Part 10112445, the Right Choice

To ensure reliability, purchase GM part # 10112445 Piston Assembly. It is sometimes referred to as Buick 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 Buick Century models.

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