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JE Pistons Ring Set 1.2 / 1.2 / 2.5mm for Subaru EJ257 Block w/ EJ20 Head - JG4904-3937

$183.99

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JE Pistons Ring Set 1.2 / 1.2 / 2.5mm for Subaru EJ257 Block w/ EJ20 Head - JG4904-3937

$183.99

$183.99

Fits Subaru hybrid engine builds utilizing an EJ257 block with EJ20 cylinder heads.

JE Pistons ring sets are engineered to maximize horsepower by providing precision sealing of combustion pressure. The JG4904-3937 set is designed specifically for high-performance applications, utilizing advanced materials and profiles to reduce internal friction and improve ring seal for better engine efficiency and longevity.

  • Top Ring: High-quality ductile iron construction with a plasma-moly inlay for heat resistance.
  • Second Ring: Taper-faced reverse torsional design to optimize oil control and secondary sealing.
  • Oil Rings: Engineered standard or low-tension oil rings for efficient lubrication management.
  • Ring Thickness: 1.2mm Top / 1.2mm Second / 2.5mm Oil.
  • Manufacturer Part Number: JG4904-3937.

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