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JE Pistons

JE Pistons Kawasaki ULTRA 250X/260X Piston Kit

Manufacturer part number: 290051

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CODE: JEP290051
$1,207.99
$1,147.99 Backorder — not currently in stock Sold out
BACKORDER — not currently in stock

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As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its range of Ultra Series pistons - The Strongest Pistons in Powersports. The Ultra Series combines all their premium features and a revolutionary new forging technology into an off-the-shelf piston kit. This includes an Aligned Grain Flow Forging, a proprietary JE technology that aligns forging grain flow in critical areas to improve strength.

  • "Perfect Skirt" Coating - This patented skirt coating reduces friction and provides a tighter clearance that eliminates cold-start slap and false knock on computer-controlled engines.
  • Thermal Barrier Crown Coating - This ceramic-based coating reflects heat into the combustion chamber, therefore reducing piston crown temperatures and improving exhaust gas scavenging
  • Every feature on Ultra Series Pistons are optimized to perform flawlessly in high horsepower racing engines. This includes lateral gas ports, thicker ring lands, and dual pin oiling
  • Aligned Grain Flow Forging - These optimized 2618 alloy forgings offer added strength over traditional 2618 forgings.
  • Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings
  • 9310 Alloy Wrist Pins: These high strength, premium thick wall
  • Engineered, forged and machined 100 percent in the USA