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Wiseco Honda CR250R 78-80/ATC250R81-84 2766CD Piston Kit

SKU: WIS431M07025

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports...

Wiseco Honda CR250R 78-80/ATC250R81-84 2766CD Piston Kit

SKU: WIS431M07025

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports...

A$407.85
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 Honda CR250R 78-80/ATC250R81-84 2766CD Piston Kit

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.

Additional Information

Wiseco 2 Stroke Forged Series Piston Kit, 70.25 mm Bore

Part Type

Engine Piston

Data: v4.2 - Upd: 2026-11-08 12:08:04

Features

  • 70.25 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

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 12:07:27

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

(keyword: piston)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Wiseco, WISECO-PRO TRU
StreetFX SKU wis431M07025
SFX Item ID 4067910
Accounting SKU wis-431M07025
Manufacturer SKU 431M07025
Manufacturer UPC 193564132741
Alternative References 431M07025, WIS-431M07025

Piston and Ring Kits, Powersports 2-Stroke Forged Series, 2.766 in. Bore, Forged Aluminum, Rings, for use on Honda®, Kit

Wiseco powersports 2-stroke forged series piston kits include your rings, piston pin, and circlips. Wiseco has a decade of experience producing quality pistons for dirt bikes, motorcycles, ATVs, snowmobiles, and outboard marine engines. Their piston kits provide strong, lightweight pistons with optimized designs that improve engine efficiency and maximize your torque and throttle response. Plus, Wiseco powersports piston kits are produced right here in the USA. It's time to blaze your own trail with these Wiseco powersports piston kits! Order the 2-stroke Forged Series piston kit designed to fit your application.

Product Attributes
BrandWiseco
Manufacturer's Part Number431M07025
Part TypePowersports Piston and Ring Kits
Product LineWiseco Powersports 2-Stroke Forged Series Piston Kits
UPC193564132741
Piston MaterialForged aluminum
Bore (in.)2.766 in.
Bore (mm)70.250mm
Wrist Pin StyleFloating
Pin Diameter (in.)0.709 in.
Wrist Pin Retainers IncludedYes
Top Ring Thickness1.0mm
Top Ring MaterialSteel
Second Ring Thickness1.0mm
Second Ring MaterialSteel
File FitNo
GaplessNo
Gaskets IncludedNo
QuantitySold as a kit.

Manufacturer Attributes
Piston Oversize 0.25
Product Series 2 Stroke Forged Series
Piston Material 4032
Piston Diameter 70.20
Bore Diameter 70.25
Product Market Dirt Bike
Title - Web Honda CR250R/ATC250R Wiseco Piston Kit - 70.25 mm Bore
Engine Type ICE
Skirt Coating No
Product Type Piston Kits
Industry Powersports
Included Components Ring Set #2766CD, Wrist Pin #S343, CirClip #CW18
Title Wiseco 2 Stroke Forged Series Piston Kit, 70.25 MM Bore
Out of Stock Message Estimated Shipped Date 3-4 Weeks
Category Hierarchy Powersports>Pistons>Piston Kits>Dirt Bike Piston Kits
Manufacturer Designation Honda CR250R '78-80,ATC250R'81-84 2766CD
Product Class Engine Piston
Construction/Type Wiseco 2 Stroke Forged Series Piston Kit, 70.25 mm Bore
Product Outline <ul><li>Engineered, forged, and machined in the USA in Mentor, OH</li><li>Designed and built for each specific 2-stroke powersports engine</li><li>Improved tensile strength of forged material optimizes strength and service life</li><li>Dedicated forgings and additional lightening operations allow for optimized strength-to-weight ratio</li><li>Includes high-quality piston ring(s), wrist pin(s), and circlips</li></ul>
Vehicle Brief Honda CR250R '78-80,ATC250R'81-84 2766CD
Market 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.

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