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Sealed Power® Piston H558P

Sealed Power Piston H558P

Vehicle Specific

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  • Specifications
  • Features
  • Vehicle Fitment
  • Specifications

    BrandSealed Power
    Part NumberH558P
    Part DescriptionPiston
    Bore3.8000"
    Compression Distance1.377
    Head Illustration28
    Head TypeRecessed Head .260 deep x 3.050 dia. - 8.5:1 C.R.
    Minimum Clearance0.001 @ 1.710 from top of head
    Part MaterialHypereutectic
    Pin Diameter0.9054"
    Pin Offset0.02"
    Ring 1 Qty2
    Ring 1 Width1.50mm
    Ring 2 Qty1
    Ring 2 Width3.00mm
    UPC724956308460
    Weight W Pin Gram00531.+/- 10.
    Warning: California’s Proposition 65
  • Features

    Sealed Power Engine Piston are featured as follows:
    • Cylinder sealing is improved for minimum blow-by.
    • It maintains standard ring gaps in the top groove.
    • Piston coated with DUROSHIELD on the skirt.
    • Engine life is extended by moly-graphite coating.
    • Friction reduction leads to higher fuel economy.
    • Protects against damage from inadequate lubrication during start-up.
    • Creating certified ISO & QS, manufacturing guarantees high performance and long product life that engine rebuilders cherish for good reasons.
    • Up-tilt ring grooves improve piston-to-ring sealing & provide great blow-by control.
    • A full range of internal replacement components designed specifically for application are included as part of Sealed Power engine products.
    The Sealed Power Engine Piston H558P is an engine component that is made with quality in mind to decrease the amount of blow-by through improved cylinder sealing and keep the top groove ring gaps within standard. With a Duroshield coated skirt, it has a moly-graphite coating which extends its life span and reduces friction thus enhancing fuel economy. The piston has been developed to prevent damage from inadequate lubrication on start-up. It guarantees performance and longer life for engine rebuilds since it is manufactured under ISO & QS certified standards. Casted using FM413 Eutectic aluminum containing 12% silicon, ensuring strength and durability. Besides, it also provides enhanced sealability in piston-to-rings due to ring grooves tilting up and better blow-by control. This product is included in Sealed Power comprehensive range of application-engineered internal replacement components for engines.
    The application-engineered internal engine replacement components are the main characteristic of Sealed Power, an automotive industry brand that is highly distinguished. Their products include pistons, piston rings, engine bearings, camshafts, oil pumps, timing components and valvetrain products. The brand's determination to keep creating new products ensures they offer top quality items for their customers.
  • Vehicle Fitment

    Year Make Model Trim Engine
    1988-1990 Buick ElectraAll Trims6 Cyl 3.8L
    1988-1992 Buick LeSabreAll Trims6 Cyl 3.8L
    1991-1992 Buick Park AvenueAll Trims6 Cyl 3.8L
    1988-1991 Buick ReattaAll Trims6 Cyl 3.8L
    1990-1992 Buick RegalAll Trims6 Cyl 3.8L
    1988-1992 Buick RivieraAll Trims6 Cyl 3.8L
    1992 Chevrolet Lumina APVAll Trims6 Cyl 3.8L
    1992 Oldsmobile 88All Trims6 Cyl 3.8L
    1988-1992 Oldsmobile 98All Trims6 Cyl 3.8L
    1988-1991 Oldsmobile Delta 88All Trims6 Cyl 3.8L
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