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Oldsmobile 555456 Valve, Exhaust

1982-1990 Oldsmobile

Customer Questions & Expert Answers (8)
GM 555456 Valve, Exhaust
  • Part Description
    VALVE, Exhaust
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine Oldsmobile
    Manufacturer Part Number555456
    Part DescriptionVALVE, Exhaust
    Other NamesExhaust Valve
    Item Dimensions5.4 x 2.2 x 2.2 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU555456
    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
    1982-1990 Oldsmobile Custom Cruiser8 Cyl 5.0L2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR, BROUGHAM LS 4 DOOR, RWD, STATION WAGON
    1982-1987 Oldsmobile Cutlass8 Cyl 4.3L, 8 Cyl 5.0L2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR, CUTLASS CALAIS, CUTLASS CRUISER
    1982-1985 Oldsmobile Delta 888 Cyl 4.3L, 8 Cyl 5.0L2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR, BROUGHAM LS 4 DOOR, RWD, STATION WAGON
    1982-1985 Oldsmobile Toronado8 Cyl 5.0LBROUGHAM
  • Customer Questions & Expert Answers

    Q:
    Want to know will this will my car? Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 555456 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    What should be done if there's excessive clearance in valve guides during valve reconditioning for the 1980 Buick Regal? Posted by Customer
    A:
    If there's excessive clearance in valve guides, they should be reamed with 0.006 and 0.010 reamers.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Exhaust Valve
    Q:
    How should the valve stems and guides be prepared before reinstalling the valves for the 1980 Chevrolet Caprice? Posted by Customer
    A:
    The valve stems and guides should be lubricated with engine oil before reinstalling the valves.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Exhaust Valve
    Q:
    How should the valves be ground to the seats for the 1981 Chevrolet El Camino? Posted by Customer
    A:
    After trueing, lightly lap grind the valves to the seats using coarse carborundum paste and a suction cup grinding tool, ensuring to lift the valve occasionally to redistribute the paste.
    Posted by GMPartsGiant Specialist
    Q:
    What cleaning steps should be taken for the valve head and stem for the 1979 Chevrolet Caprice? Posted by Customer
    A:
    It is important to scrape away all carbon from the valve head and stem, then clean the valves and valve seats using a solvent-soaked rag followed by a clean rag.
    Posted by GMPartsGiant Specialist
    Q:
    What should be examined on the valves for the 1978 Chevrolet El Camino? Posted by Customer
    A:
    Examine the heads of the valves for pitting and burning, particularly the exhaust valves, while also checking the seating.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Exhaust Valve
    Q:
    When is the grinding process considered complete for the 1993 Oldsmobile Cutlass? Posted by Customer
    A:
    The grinding is complete when a smooth, unbroken ring of light grey matte finish appears on both the valve seat and the valve.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Exhaust Valve
    Q:
    What should be done if the valve stem has excessive clearance in its guide for the 1993 Oldsmobile Cutlass? Posted by Customer
    A:
    It should be replaced with an oversized valve, a task best handled by a dealer or machine shop.
    Posted by GMPartsGiant Specialist
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine GM Part 555456, the Right Choice

To ensure reliability, purchase GM part # 555456 Valve, Exhaust. It is sometimes referred to as Oldsmobile Exhaust Valve. 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 Custom Cruiser, Cutlass, Delta 88 models.

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