Wiseco

Wiseco 03-07 KTM 450EXC/MXC/XC-W 121 (4942M) Piston Kit

$342.99

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Regular price $342.99
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The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco's forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you're looking for.
Wiseco 4 Stroke Forged Series Piston Kit, 89.00 mm Bore, 12:1 CR


  • Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation

  • Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions

  • Performance-Enhancing Features: Varied across applications to maximize both durability and power

  • Improved tensile strength of forged material optimizes strength and service life

  • Designed and built for each specific 4-stroke powersports engine

  • Dedicated forgings allow for optimized strength-to-weight ratio

  • Includes high-quality piston rings, wrist pin(s), and circlips

  • Engineered, forged, and machined in the USA in Mentor, OH

  • 89.00 mm Bore, 12:1 CR



Wiseco 03-07 KTM 450EXC/MXC/XC-W 121 (4942M) Piston Kit


The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco's forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you're looking for.
Wiseco 4 Stroke Forged Series Piston Kit, 89.00 mm Bore, 12:1 CR



  • Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation

  • Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions

  • Performance-Enhancing Features: Varied across applications to maximize both durability and power

  • Improved tensile strength of forged material optimizes strength and service life

  • Designed and built for each specific 4-stroke powersports engine

  • Dedicated forgings allow for optimized strength-to-weight ratio

  • Includes high-quality piston rings, wrist pin(s), and circlips

  • Engineered, forged, and machined in the USA in Mentor, OH

  • 89.00 mm Bore, 12:1 CR


ATTRIBUTES: false, true, true, false, Y, powersports, N/A, false, 1


BRAND: Wiseco


MPN: PK1447


SKU: 655446


Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: powersports
Epa: N/A
Regular Stock: false
Units Per Sku: 1


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