Shopping Cart

Your cart is empty.

Your cart is empty.

WSM 50-520-685K - Big Bore Piston Kit, 4.50mm Oversized to 68.50mm Bore

5.0 Write Review
Free shipping on orders over $29.99

$159.28

$ 70 .99 $70.99

In Stock
  • Competitively 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


Bore: 68.50mm
Sizing: 4.50mm Oversize
Stock wrist pin height piston.
Competitively 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.
1987-2006 fits YAM YFZ350 Banshee