Make sure this part fits

GM 555456
Exhaust Valve

1984-1990 GM

Customer Questions & Expert Answers (1)
GM 555456 Exhaust Valve
  • Part Description
    Valve-Exhaust
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Vehicle Fitment

    Year Make Model Trim Engine
    1989, 1984-1987 Buick ElectraEstate Wagon, Limited, Park Avenue8 Cyl 5.0 L GAS
    1984-1990 Buick LeSabreCollector's Edition, Custom, Estate Wagon, Limited8 Cyl 5.0 L GAS
    1986-1987 Buick RegalBase, Limited8 Cyl 5.0 L GAS
    1984-1985 Buick RivieraBase, Luxury8 Cyl 5.0 L GAS
    1986-1990 Chevrolet CapriceBase, Classic, Classic Brougham8 Cyl 5.0 L GAS
    1984 Oldsmobile 98Regency, Regency Brougham8 Cyl 5.0 L GAS
    1984-1990 Oldsmobile Custom CruiserBase8 Cyl 5.0 L GAS
    1984 Oldsmobile Cutlass CalaisBase, Hurst8 Cyl 5.0 L GAS
    1985-1987 Oldsmobile Cutlass Salon442, Base8 Cyl 5.0 L GAS
    1984-1987 Oldsmobile Cutlass Supreme442, Base, Brougham, LS8 Cyl 5.0 L GAS
    View More
    Warning: California's Proposition 65
  • Customer Questions & Expert Answers

    Q:
    Hi! Is this 555456 a perfect fit for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 555456 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Exhaust Valve 555456 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 555456 Exhaust Valve is available in the market under the name GM Exhaust Valve. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 555456 Exhaust Valve fits certain Chevrolet Caprice models, as well as Buick Regal, Riviera, LeSabre. Additionally, it is compatible with Pontiac Parisienne, Safari and Oldsmobile 98, Custom Cruiser, Cutlass Supreme models.
The original GM component designated by manufacturer part number 555456 maintains top performance when functioning as the Valve-Exhaust unit. The component 555456 is constructed from durable material and its dimensions span 5.4 x 2.2 x 2.2 inches while weighing 0.50 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Valve, Exhaust. The part 555456 has available replacement options. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
A GM part 555456 with Exhaust Valve serves as an essential component for valve operation in the valve mechanism of the 231 cu in V6 engine without GM's adjustable valve lash standard component. During valve seat or face grinding it is essential to exercise careful maintenance because adjustments in valve stem height dimensions can occur. Combined attention is necessary when grinding the valve stem because it extends past standard height measures by 0.050 inches. The GM tool J-8062 serves as a quality spring compressor which ensures safe operations when removing springs and their caps during maintenance procedures. The inspection process identifies both pitting and burn marks which lead to needed replacements or reconditioning of defective valve components. Correct installation methods should be applied with GM part 555456 because valve seals must be placed exactly and spring compression should stay minimal before final assembly. Maintaining these components constantly for proper guide clearance control is essential because oversized valves will be required to manage this issue. The website houses genuine GM OEM 555456 Exhaust Valve products together with manufacturer-provided guarantees to enable stress-free installation operations for each premium component seeker.