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Oldsmobile 12507986 Piston Ring Kit, .030 Outside

1992-1994 Oldsmobile Bravada

Customer Questions & Expert Answers (3)
12507986 GM Piston Ring Kit, .030 Outside Illustration 1 of 1
  • Part Description
    RING KIT, 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 Oldsmobile
    Manufacturer Part Number12507986
    Part DescriptionRING KIT, Engine Piston
    Item Dimensions4.8 x 4.7 x 0.6 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12507986
    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
    1992-1994 Oldsmobile Bravada6 Cyl 4.3LBRAVADA
  • 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 12507986 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How do you install the oil control ring components and Piston Ring for the 1994 Chevrolet Astro? Posted by Madhar M.
    A:
    Slip the spacer/expander into the groove, ensuring any anti-rotation tang is inserted into the drilled hole. Install the lower side rail without using a piston ring installation tool to avoid damage, and then install the upper side rail similarly. After installing the three oil ring components, check that both side rails can turn smoothly in the groove. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jose / Apr 19, 2024
    Q:
    What tool is used to measure the end gap of the Piston Ring for the 1994 Chevrolet S10? Posted by Dalverto F.
    A:
    A feeler gauge is used between the ends of the ring to measure the end gap and compare the measurement to the specifications. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Aug 17, 2025

Genuine GM Part 12507986, the Right Choice

To ensure reliability, purchase GM part # 12507986 Piston Ring Kit, .030 Outside. It is sometimes referred to as Oldsmobile Piston Ring. 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 Oldsmobile Bravada models.

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