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Professional Series Forged Piston Set with Rings for Subaru EJ257 2.5L 16V, 99.50 mm Bore, 30.70 mm CH, -15cc [2618 Aluminum]
InfoVehicle Info Needed
WISECOPART NUMBER: 926-K705M995

Professional Series Forged Piston Set with Rings for Subaru EJ257 2.5L 16V, 99.50 mm Bore, 30.70 mm CH, -15cc [2618 Aluminum]

$81799
ShippingShips on 11/13/2026
Lowest PriceLowest Price Guarantee

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Forged Piston Set with Rings
  • Subaru EJ257 2.5L 16V
  • 99.50 mm Bore
  • 30.70 mm Compression Height
  • -15cc Dish
  • 0.9055 in. Floating Wrist Pin Included
  • Piston Rings Included
  • 2618 Forged Aluminum
  • ArmorGlide Coated Skirt
  • Set of 4

    This Wiseco Professional Series piston set is forged from 2618 aluminum for Subaru EJ257 2.5L 16V engines. Each of the 4 pistons has a 99.50 mm bore and a 30.70 mm compression height with a -15cc dish. Professional Series pistons are aimed at heavy to severe duty race builds.

    Wiseco K705M995 Piston Set Features:

    • Made for Subaru EJ257 2.5L 16V engines
    • 99.50 mm bore diameter with a 30.70 mm compression height
    • -15cc dish volume
    • Forged from 2618 aluminum alloy
    • ArmorGlide skirt coating for reduced friction, scuff resistance and quieter operation
    • 0.9055 in. 52100 Steel floating wrist pin included
    • Piston rings included: 1.2 mm top, 1.5 mm second and 2 mm oil ring
    • Fully machined crown with precision ring grooves and an anti-detonation groove
    • Forced pin oiling feeds the wrist pin bore
    • Set of 4 pistons
    • Part TypePiston Set with Rings
    BrandWISECO
    Package Height4.2
    Package Width7.5
    Package Length8.0
    Weight8.4 PG
    Part CategoryPerformance Parts
    Compression Height30.70 mm
    Piston Head TypeDish
    Wrist Pin StyleFloating
    QuantitySet of 4
    Oil Ring Thickness2 mm
    Bore Diameter99.50 mm
    Piston Pin Outside Diameter0.9055 in.
    Piston Head Volume (Cc)-15cc
    Second Compression Ring Thickness1.5 mm
    Top Compression Ring Thickness1.2 mm
    Piston Material2618 Aluminum
    Part FitmentUniversal
    Wrist Pin IncludedYes
    Piston Quantity4
    Piston Pin Material52100 Steel
    Vendor Part NumberK705M995
    Package Qty1
    Package TypeEA
    Some parts are not legal for use in California or other states with similar laws / regulations
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