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Engine Pipe Plug Bulk Pack, Hex Drive, Coarse Thread [Galvanized Steel]
InfoVehicle Info Needed
MELLINGPART NUMBER: 689-MPP-454

Engine Pipe Plug Bulk Pack, Hex Drive, Coarse Thread [Galvanized Steel]

$4399
ShippingShips on 09/04/2026
Lowest PriceLowest Price Guarantee

Threaded hex head pipe plug sold by dimension for sealing tapped oil and coolant galleries.
  • Sold by dimension for universal use
  • Hex drive, 0.25 in. tool size
  • Coarse outside thread
  • Galvanized steel, black finish

    Tapped galleries in a block or head need a threaded plug rather than a press-in cup, and engine builders go through them by the handful. This bulk pack keeps the common hex head size on the shelf so a rebuild is not held up waiting on a single fastener.

    Melling MPP-454 Plug Details

    • Hex drive head with a 0.25 in. tool size.
    • Coarse thread, outside threaded.
    • Galvanized steel with a black finish; not heat hardened and not zinc coated.
    • Supplied as a bulk pack, sold by dimension.
  • Part TypePipe Plug
    BrandMELLING
    Package Width0.45
    Weight0.45 PG
    Part CategoryReplacement Parts
    Head Drive TypeHex
    Zinc CoatedNo
    Heat HardenedNo
    Inside Or Outside ThreadOutside
    ColorBlack
    MaterialGalvanized Steel
    Part FitmentUniversal
    Thread TypeCoarse
    Depth0.015 in.
    Head Tool Size0.25 in.
    Vendor Part NumberMPP-454
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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