Wiseco Yamaha YFM125R Raptor 11-13 131 CR Piston Kit

SKU: WIS40071M05400

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports

Wiseco

Wiseco Yamaha YFM125R Raptor 11-13 131 CR Piston Kit

SKU: WIS40071M05400

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

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.

Part Type

Engine Piston

Data: v4.2 - Upd: 2026-09-30 17:38:34

Features

54.00 mm Bore, 13:1 CR
Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation
Dedicated forgings allow for optimized strength-to-weight ratio
Designed and built for each specific 4-stroke powersports engine
Engineered, forged, and machined in the USA in Mentor, OH
Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions
Improved tensile strength of forged material optimizes strength and service life
Includes high-quality piston rings, wrist pin(s), and circlips
Performance-Enhancing Features: Varied across applications to maximize both durability and power

Specifications

Product Attributes - Brand: Wiseco
Product Attributes - Manufacturer's Part Number: 40071M05400
Product Attributes - Part Type: Powersports Piston and Ring Kits
Product Attributes - Product Line: Wiseco Powersports Piston Kits
Product Attributes - UPC: 00193564124456
Product Attributes - Piston Material: Forged aluminum
Product Attributes - Bore (mm): 54.000mm
Product Attributes - Stroke: 54.00mm
Product Attributes - Wrist Pin Style: Floating
Product Attributes - Wrist Pin Retainers Included: Yes
Product Attributes - Top Ring Material: Steel
Product Attributes - Top Ring Facing Material: Gas nitrided
Product Attributes - Second Ring Material: Cast iron
Product Attributes - Second Ring Facing Material: Cast iron
Product Attributes - Oil Ring Material: Stainless steel
Product Attributes - Oil Ring Facing Material: Nitride
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	wis40071M05400
SFX Item ID	4068529
Supplier Item Code	4068529
Manufacturer SKU	40071M05400
Manufacturer UPC	193564124456
Alternative References	YFM125R