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Buick 12577586 Piston Assembly, (W/ Connect Rod)

2005-2007 Buick

Customer Questions & Expert Answers (2)
12577586 GM Piston Assembly, (W/ Connect Rod)
  • 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 Number12577586
    Part DescriptionPISTON, Engine Piston
    Other NamesPiston
    Item Dimensions5.4 x 5.5 x 12.0 inches
    Item Weight2.80 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12577586
    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
    2006-2007 Buick Rendezvous6 Cyl 3.5LAWD, RENDEZVOUS
    2005-2006 Buick Terraza6 Cyl 3.5LCROSSOVER SPORT VAN EXTENDED, CROSSOVER SPORT VAN EXTENDED AWD
  • 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 12577586 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    In what order should the Piston rings be installed for the 2006 Pontiac G6? Posted by Devon B.
    A:
    Install the oil control ring first, followed by the middle and top rings, ensuring the correct orientation. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Mar 24, 2025

Genuine GM Part 12577586, the Right Choice

To ensure reliability, purchase GM part # 12577586 Piston Assembly, (W/ Connect Rod). 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 Rendezvous, Terraza models.

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