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

SKU: WISK131

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports

Wiseco

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

SKU: WISK131

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

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.

Part Type

Engine Piston Set

Data: v4.2 - Upd: 2026-09-30 17:36:25

Features

65.00 mm Bore
Dedicated forgings and additional lightening operations allow for optimized strength-to-weight ratio
Designed and built for each specific 2-stroke powersports engine
Engineered, forged, and machined in the USA in Mentor, OH
Improved tensile strength of forged material optimizes strength and service life
Includes high-quality piston ring(s), wrist pin(s), and circlips

Specifications

Product Attributes - Brand: Wiseco
Product Attributes - Manufacturer's Part Number: K131
Product Attributes - Part Type: Powersports Piston and Ring Kits
Product Attributes - Product Line: Wiseco Powersports 2-Stroke Forged Series Piston Kits
Product Attributes - UPC: 00193564155214
Product Attributes - Piston Material: Forged aluminum
Product Attributes - Bore (mm): 65.000mm
Product Attributes - Stroke: 54.00mm
Product Attributes - Wrist Pin Style: Floating
Product Attributes - Pin Diameter (in.): 0.630 in.
Product Attributes - Wrist Pin Retainers Included: Yes
Product Attributes - Top Ring Thickness: 1.0mm
Product Attributes - Top Ring Material: Steel
Product Attributes - Second Ring Thickness: 1.0mm
Product Attributes - Second Ring Material: Steel
Product Attributes - File Fit: No
Product Attributes - Gapless: No
Product Attributes - Gaskets Included: No
Product Attributes - Quantity: Sold as a kit.

Reference Information

Brand Name/s	Wiseco
StreetFX SKU	wisK131
SFX Item ID	4065556
Supplier Item Code	4065556
Manufacturer SKU	K131
Manufacturer UPC	193564155214
Alternative References	RD350/400, KT(65mm-2559CD-393M)