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Wiseco 98-04 Honda TRX450ES Foreman 9.51 (4825M) Piston Kit

SKU: WISPK1590

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports

Wiseco 98-04 Honda TRX450ES Foreman 9.51 (4825M) Piston Kit

SKU: WISPK1590

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports

A$487.52
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 Set

Data: v4.2 - Upd: 2026-09-30 17:36:01

Features

  • 90.50 mm Bore, 9.5:1 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
PK1590
Product Attributes - Part Type
Powersports Piston and Ring Kits
Product Attributes - Product Line
Wiseco Powersports Piston Kits
Product Attributes - UPC
00193564148865
Product Attributes - Piston Material
Forged aluminum
Product Attributes - Bore (mm)
90.500mm
Product Attributes - Stroke
68.00mm
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
Yes
Product Attributes - Quantity
Sold as a kit.

Reference Information

Brand Name/s Wiseco
StreetFX SKU wisPK1590
SFX Item ID 4065044
Supplier Item Code 4065044
Manufacturer SKU PK1590
Manufacturer UPC 193564148865
Alternative References TRX450ES, (4825M)

Compatibility

Application Data
  • MakeHONDA
    ModelTRX450FE FOURTRAX FOREMAN ES
    Beginning Year1998
    Ending Year2004
    Powersports Compression Ratio9.50 to 1
  • MakeHONDA
    ModelTRX450FM FOURTRAX FOREMAN S
    Beginning Year1998
    Ending Year2004
    Powersports Compression Ratio9.50 to 1

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