NOTES:

This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value. This product is distinguished by total quality assurance, unsurpassed by anybody else.

OEM Replacement Numbers: 785-9738A7, 785-9738A9, 785-9738T9

• 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

Brand: WSM
Part Number: 100-20SK

Fitment:

• 1990-2000 Mercury 6 Cyl 3.125 Bore 2L 135
• 1990-2005 Mercury 6 Cyl 3.125 Bore 2L 150
• 1990-1999 Mercury 6 Cyl 3.375 Chrome Bore 2.4L 175
• 1990-1992 Mercury 6 Cyl 3.375 Steel Bore 2.4L XR-4 150
• 1991-1992 Mercury 6 Cyl 3.375 Steel Bore 2.4L XR-4 175
• 1991-2005 Mercury 6 Cyl 3.501 Bore 2.5L 200
• 1992-2001 Mercury 6 Cyl 3.501 Bore 2.5L EFI 150
• 1990-2001 Mercury 6 Cyl 3.501 Bore 2.5L EFI 175
• 1990-2001 Mercury 6 Cyl 3.501 Bore 2.5L EFI 200
• 1992-1999 Mercury 6 Cyl 3.501 Bore 2.5L Jet 105
• 1992-2005 Mercury 6 Cyl 3.501 Bore 2.5L Jet 140
• 1994-1998 Mercury 6 Cyl 3.501 Bore 2.5L Pro Max 150
• 1994-1999 Mercury 6 Cyl 3.501 Bore 2.5L Pro Max 200
• 1997-2001 Mercury 6 Cyl 3.501 Bore 2.5L Sport Jet 175
• 2000-2001 Mercury 6 Cyl 3.501 Bore 2.5L Sport Jet 210
• 1992-1998 Mercury 6 Cyl 3.501 Bore 2.5L XR6 150
• 2000-2004 Sea-Doo Challenger 210 2500
• 2000-2004 Sea-Doo Challenger 240 EFI 2500
• 2000-2004 Sea-Doo Islandia 240 2500
• 2000 Sea-Doo Speedster 210 2500
• 2000-2004 Sea-Doo Speedster 240 2500
• 2000 Sea-Doo Sportster 210 2500
• 2001-2002 Sea-Doo Utopia 210 2500
• 2001-2005 Sea-Doo Utopia 240 EFI 2500
• 2002 Sea-Doo X-20 2500

Note: Image is for reference only, actual product may vary slightly.