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Wiseco WIS Piston Sets-Powersports - K131

Wiseco Yamaha RD350/400 KT(65mm-2559CD-393M) Piston Kit
Availability: Out of Stock - on backorder and will be dispatched once in stock.
Part number: K131
Manufacturer: Wiseco
$368.91
Special order — estimated supplier availability August 14. This is not a customer delivery date.

Classic Forged 2-stroke pistons are perfect for those looking to rebuild their 2-stroke engine with reliable, high-quality components. These pistons cover a wide range of Powersports rebuilds, including vintage motocross models, classic street bikes, and snowmobiles. The forged material improves tensile strength over cast pistons, ensuring refreshed performance on the track or the trail.

Wiseco's legacy is rooted in 2-stroke piston manufacturing and performance, dating over 80 years ago back to 1941. Today, Wiseco 2-stroke pistons are the result of decades of experience, incorporating the latest in 2-stroke piston manufacturing and design to deliver the performance Wiseco built its name on.

Dedicated forgings and additional lightening operations allow for optimized strength-to-weight ratio

Improved tensile strength of forged material optimizes strength and service life

Designed and built for each specific 2-stroke powersports engine

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

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

Wiseco Yamaha RD350/400 KT(65mm-2559CD-393M) Piston Kit

Wiseco 2 Stroke Forged Series Piston Kit, 65.00 mm Bore

Yam RD350/400 KT(65mm-2559CD-393M)

Engine Piston Set

65.00 mm Bore

+1, Bore:65

Piston Kit

No confirmed vehicle fitment listed We do not have a vehicle-specific fitment row for this product yet.

This does not automatically mean the part fits every 3000GT or Stealth. Send us your year, drivetrain, turbo/non-turbo status, and part number before ordering if fitment is in question.

Ask fitment help