Wsm 50-520-685 Big Bore Piston Kit - 4.50mm Oversized to 68.50mm Bore exhaust-slip-on-silencers Seven external knob adjustments allow

Seven external knob adjustments allow fine-tuning of compression

and bolts needed for secure footpeg installation on Yamaha and Suzuki models from 1997 to 2026

2007-2009 Sea-Doo (Boats) 205 Utopia (310 hp)

2012-2013 Honda TRX420FPA Rancher A

Yamaha YFM700 Grizzly FI 4x4 Auto EPS 2007

Wsm 50-520-685 Big Bore Piston Kit - 4.50mm Oversized to 68.50mm Bore exhaust-slip-on-silencers Seven external knob adjustments allowBore: 68. 50mm Sizing: 4. 50mm Oversize Stock wrist pin height piston. Competitively priced forged pistons. Coated with MOS2 for high performance and heat absorption. Ported to match WSM Banshee sleeves. Four piston categories from standard, big bore, 5mm long rod and big bore with 5mm long rod. Piston pin is 5mm higher on long rod pistons to accommodate long rod. Made in Germany. Vehicle Fitment: 1987 2006 Yamaha YFZ350 Banshee