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Pontiac 1241851 Rocker Arms

1982-1987 Pontiac

Customer Questions & Expert Answers (2)
1241851 GM Rocker Arms Illustration 1 of 1
  • Part Description
    Arm, Engine Valve Rocker
  • 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 Number1241851
    Part DescriptionRocker Arms; Arm, Engine Valve Rocker
    Item Dimensions3.2 x 1.5 x 1.5 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU1241851
    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
    1982-1986 Pontiac Bonneville6 Cyl 3.8L, 6 Cyl 4.1L2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, LE 2 DOOR, STATION WAGON
    1982-1987 Pontiac Grand Prix6 Cyl 3.8L, 6 Cyl 4.1L2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, LE 2 DOOR, STATION WAGON
    1983-1986 Pontiac Parisienne6 Cyl 3.8L4 DOOR, BROUGHAM, STATION WAGON
  • 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 1241851 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How to remove and install Rocker Arms and rocker arm shaft assembly on Buick Regal? Posted by Geiner S.
    A:
    First, remove the rocker arm covers, then the rocker arm shaft assembly bolts and finally the rocker arm shaft assembly. The nylon arm retainers have to be removed in order to get the rocker arms off the shaft. With a pair of pliers, this can be done or they can be broken by hitting them below their head with a chisel. After that, take out the rocker arms from the shaft making sure they are put in order. Each rock arm also has an external rib which points away from between each pair of rocker arms up to the one at each end closest to its respective bolt on the opposite side of a valve cover. If you are installing new rocker arms, be aware that replacement units would have R or L on them indicating right or left side installation only and they cannot be interchanged. Fit on oil-lubed shaft then install it back onto both ends and tighten nuts to 25 ft lbs (32 Nm). In case you should decide on installing new retainer using hammer and drift 1/2 inch diameter or bigger.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Bob / May 17, 2026

Genuine GM Part 1241851, the Right Choice

To ensure reliability, purchase GM part # 1241851 Rocker Arms. It is sometimes referred to as Pontiac Rocker Arm. 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 Bonneville, Grand Prix, Parisienne models.

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