Prox Casted Piston kitRef : PRO00714A / 1093414003

PROX Cast Piston (manufacturer part number: 01.2487.100) — replacement piston designed for top-end rebuilds of quads. Made from cast aluminum, this piston is aimed at riders looking for a sturdy part that meets oversized specifications for reboring their cylinder. Its design is suitable for routine maintenance and for restoring the piston/ring/cylinder assembly.

• Diameter: Ø 84.00 mm
• Oversize: +1.00 mm (oversize letter: 100)
• Compression: Standard
• Material: Cast aluminum

This piston is integrated into top-end rebuild operations: boring to +1.00 mm, checking piston/cylinder clearance, and installation with appropriate rings. For a complete overhaul, consider the top-end gasket set (part number 604354) and the replacement ring (part number 260290).

Compatibility (examples): YAMAHA YFM 350 GRIZZLY 4WD (2014 - 350 cc), YAMAHA YFM 350 GRIZZLY 2WD (2014 - 350 cc), YAMAHA YFM 350 RAPTOR 2WD (2013 - 350 cc). Always check the size and engine reference before ordering to ensure proper fit.

Manufacturer part number: 01.2487.100 — PROX Cast Piston, a simple and practical replacement part for your quad mechanical work.