Wiseco PK1860 Forged Top End Piston Kit CR - 4953M09600 96mm 12.2 1

The Wiseco PK1860 is a complete forged top end piston kit designed for the Suzuki RM-Z450. Built around the 4953M09600 forged piston, this kit delivers a standard 96.00mm bore at a 12.2:1 compression ratio, restoring your engine to factory displacement with the added strength and durability of Wiseco's precision forgings.

Kit Includes:

• Forged piston (4953M09600) — 96.00mm standard bore, 12.2:1 compression
• Piston ring(s)
• Wrist pin (S682 — 19 x 45 x 10mm)
• Circlips
• Top end gasket set

Key Features:

• Forged from high-silicon, low-expansion aluminum alloy for superior strength and reduced weight
• Engineered, forged, and CNC-machined in the USA at Wiseco's facility in Mentor, OH
• Race-ready domed profile with smooth edges for improved combustion flow
• Tight manufacturing tolerances ensure quiet, reliable operation
• Designed to fit standard bore cylinders — ideal for rebuilds without overboring
• All rings, wrist pin, and circlips manufactured by Wiseco to strict quality standards

Whether you're refreshing a worn top end or completing a full engine rebuild, the Wiseco PK1860 top end kit provides everything needed for a complete, reliable assembly. Compatible with the Suzuki RM-X450Z (2010–2016) in addition to the RM-Z450 application. Cross-reference piston part number: 4953M09600.