VERTEX OEM Cast Piston Kit 09-25 KTM 65 SX Husqvarna TC 65 Gas Gas MC 65

The VERTEX OEM Replacement Cast Piston Kit is engineered to restore factory performance and reliability for KTM 65 SX, Husqvarna TC 65, and Gas Gas MC 65 models. Designed as a direct OE-style replacement, this Vertex 65cc piston kit features a standard compression ratio with a 45mm bore, maintaining original engine characteristics while delivering smooth, consistent power. Riders searching for a KTM 65 SX piston kit, TC 65 cast piston, or Gas Gas MC 65 OEM piston can rely on Vertex’s race-proven engineering and materials.

Manufactured from a gravity-cast aluminum alloy with 18% silicone content, the Vertex OEM cast piston kit is lightweight yet extremely durable. Each piston is T-5 heat treated and finished with a Molybdenum Disulphide (MOS2) skirt coating, providing faster break-in, reduced friction, and extended piston life. As the primary supplier of two-stroke pistons for KTM, Vertex delivers exceptional quality trusted by factory teams and youth racers worldwide. If you’re rebuilding a top end or performing routine maintenance, this 65cc Vertex piston kit offers OEM fitment, long service life, and dependable performance.

Top Features – VERTEX OEM Replacement Cast Piston Kit

• OEM replacement Vertex 65cc cast piston kit
• 45mm standard bore with OEM compression ratio
• Gravity-cast aluminum alloy with 18% silicone content
• T-5 heat treated for strength and durability
• Molybdenum Disulphide (MOS2) skirt coating for faster break-in
• Kit includes piston, rings, wrist pin, and circlips

Fitment

• 65cc two-stroke mini motocross engines
• Youth racing and recreational riding

Fitment Chart

• 2009–2025 KTM 65 SX
• 2013–2014 KTM 65 SXS
• 2009 KTM 65 XC
• 2017–2025 Husqvarna TC 65
• 2021–2025 Gas Gas MC 65

FAQs

Q: Is this a forged or cast piston?
A: This is a cast piston, designed to match OEM performance and characteristics.

Q: Does the kit include everything needed for installation?
A: Yes, the kit includes the piston, rings, wrist pin, and circlips.

Q: What piston sizes are available?
A: Bore sizes include AB piston 44.96mm and CD piston 44.97mm, depending on cylinder specification.

Restore smooth power delivery, fast throttle response, and long-term reliability with a Vertex OEM replacement piston trusted by factory race teams.

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