Wiseco Forged Piston Kit with Gaskets - KTM 450 EXC Racing / MXC / XC-W (2003-2007) - 89.00mm Bore - 11.0:1 - ArmorGlide - 4-Stroke

Wiseco Forged Piston Kit with Gaskets - KTM 450 EXC / MXC / XC-W

Premium Wiseco forged piston kit with complete top-end gasket set for the KTM 450cc 4-stroke platform. Features ArmorGlide® skirt coating for maximum durability and reduced friction!

Kit Includes

• Piston Kit #4941M08900
• Ring Set #8900ZC
• Wrist Pin #S641
• Wrist Pin Retainer Set #W5509
• Gasket Kit #W5883

Key Features

• Forged Series design for maximum strength and durability
• 2618 aluminum alloy construction - preferred for high-performance racing
• ArmorGlide® skirt coating for reduced friction and wear protection
• 11.0:1 compression ratio
• Complete top-end gasket kit included
• Standard bore - direct OEM replacement
• 5 years of fitment (2003-2007)

Piston Specifications

• Bore Size: 89.00 mm (Standard)
• Piston Diameter: 88.92 mm
• Stroke Length: 72.00 mm
• Compression Ratio: 11.0:1
• Material: 2618 Aluminum Alloy
• Skirt Coating: ArmorGlide®

Engine Specifications

• Displacement: 448cc
• Engine Type: 4-Stroke
• Weight: 1.4 lbs

Fitment

KTM 450:

• 450 EXC Racing 4-Stroke: 2003-2007
• 450 MXC: 2003-2007
• 450 XC-W: 2003-2007

Important Notes

• Wiseco ring types are not interchangeable
• Wiseco pistons can be fitted only with Wiseco rings
• Cylinder sleeves must be purchased separately if needed

Why ArmorGlide®?

ArmorGlide® is Wiseco's premium skirt coating that reduces friction and provides superior wear protection. This coating is especially beneficial for the KTM 450 enduro and offroad applications where extended run times and reliability are critical.