Wiseco High-Performance Forged Piston Kit – 97.00mm (+2.00mm Oversize) | 12.5:1 Compression 4732M09700

Wiseco High-Performance Forged Piston Kit – 97.00mm (+2.00mm Oversized) | 12.5:1 Compression

Part Number: 4732M09700

Condition: Brand New in Original Packaging

Shipping: FREE Fast Shipping to the Lower 48 Continental US States!

Product Overview

Upgrade your high-performance engine with the Wiseco 4732M09700 Forged Piston Kit. Engineered in the USA using aerospace-grade aluminum alloys, Wiseco forged pistons deliver superior strength-to-weight ratios, enhanced throttle response, and sustained power under extreme operating conditions.

This kit features a high-compression 12.5:1 ratio and a 97.00mm bore size (+2.00mm over stock), providing increased displacement and peak performance for off-road motorcycles and ATVs.

Key Features & Benefits

• Forged Aerospace Alloy: Machined on state-of-the-art CNC equipment for optimal shape and strength.

• Race-Ready High Compression: 12.5:1 ratio designed to maximize horsepower and throttle response.

• Complete Kit: Includes forged piston, high-performance ring set, alloy wrist pin, and circlips.

• ArmorGlide Skirt Coating: Reduces friction, minimizes engine noise, and resists scuffing.

• Optimized Oiling: Horizontal slot-pin oiling reduces friction and protects against thermal breakdown.

Product Specifications

• Brand: Wiseco

• Manufacturer Part Number (MPN): 4732M09700

• UPC: 758324316191

• Bore - Standard: 95.00 mm

• Bore - Actual: 97.00 mm (+2.00 mm Oversize)

• Engine Displacement: 521cc

• Compression Ratio: 12.5:1

• Stroke: 72.00 mm

• Engine Type: 4-Stroke

• Machining Required: Cylinder boring and/or replating required for installation.

Vehicle Fitment Guide

Compatible with the following models (please verify fitment prior to purchase):

• Beta:

  • 525 RR (2008 – 2009)

• KTM Motorcycles:

  • 520 EXC / SX (2000 – 2002)

  • 525 EXC / SX / SMR (2003 – 2007)

  • 525 XC (2008 – 2010)

• KTM ATVs:

  • 525 XC ATV (2008 – 2012)

• Polaris ATVs:

  • Outlaw 525 / 525 IRS / 525 S (2007 – 2011)

Shipping & Handling

• FREE Shipping: Applies strictly to physical addresses within the 48 Continental United States.

• Order Processing: Ships within 1 business day with tracking provided.

• Exclusions: Alaska, Hawaii, Puerto Rico, US Territories, and APO/FPO addresses may incur additional shipping fees (please contact us for a quote).

Note: Product images are for illustrative reference; actual item packaging and included components match the listed Wiseco part number.