Wiseco PK1426 98mm 13:1 Forged 4-Stroke Piston Kit for Suzuki LT-R450

The Wiseco PK1426 is a high-performance forged 4-stroke piston kit engineered for the Suzuki LT-R450 QuadRacer. Featuring a 98.00mm bore diameter and an aggressive 13.0:1 compression ratio, this kit is purpose-built for riders demanding maximum power output and long-term durability from their ATV's top end. The included piston carries Wiseco's internal part number 4912M09800 and is part of an over-bore solution spanning from 95.5mm to 98mm.

Key Features:

• Forged aerospace-grade alloy construction — dedicated forging for superior strength-to-weight ratio
• 98.00mm bore / 13.0:1 compression ratio — designed for high-performance and racing applications
• CNC machined to precise tolerances for optimal fit, combustion efficiency, and long service life
• Dome design with improved flame travel for enhanced power delivery
• Chrome-plated piston pin with horizontal slot-pin oiling to reduce friction and scuff resistance
• Pressure seal groove for maximum ring seal and compression retention
• Dedicated ring set included — optimized for maximum compression and oil control
• Top-end gasket kit included — premium materials exceeding OEM sealing standards
• Engineered and forged in the USA at Wiseco's Mentor, Ohio facility

Wiseco's vertically integrated manufacturing process — from raw bar stock through skirt coating — ensures consistent quality and tight tolerances on every piston. Compared to cast pistons, Wiseco's forgings feature a condensed, aligned grain structure that delivers superior mechanical properties, impact resistance, and fatigue life under the extreme conditions of ATV racing. This kit provides everything needed for a complete, race-ready top-end rebuild.