Vertex Top End Piston Kit VTK24244B-1 (71.935mm) — KTM/Husqvarna/Gas Gas 300cc 2023-2024

Vertex Top End Piston Kit VTK24244B-1 — KTM/Husqvarna/Gas Gas 300cc 2023-2024 (71.935mm)

Product Description

Maintain the legendary performance of your 300cc 2-stroke engine with the Vertex VTK24244B-1 Top End Piston Kit. Designed specifically for the latest generation of KTM, Husqvarna, and Gas Gas 300cc models, this kit provides a factory-grade top-end refresh in a single, convenient package.

This kit features a premium gravity-cast piston made from an 18% silicone aluminum alloy. This advanced material composition is engineered to minimize thermal expansion, allowing for tighter clearances that restore peak compression and throttle response. Every kit is finished with a high-tech Molybdenum Disulphite (MoS2) skirt coating for a quicker break-in and enhanced wear resistance against the harsh conditions of off-road and enduro riding.

Top Features: Vertex Top End Piston Kit

• All-in-One Solution: Includes piston, rings, wrist pin, circlips, high-quality top-end gaskets, and a wrist pin bearing for a complete rebuild.
• Factory Precision: Designed as a direct cast OE replacement for exact compatibility and performance.
• Advanced Material: 18% silicone-content gravity-cast aluminum alloy stabilizes the piston shape under extreme heat.
• Moly-Coated Skirt: Reduces friction and protects against scuffing during initial break-in and throughout the piston's life.
• T-5 Heat Treated: Undergoes a complete T-5 hardening and tempering cycle to maximize durability and structural integrity.

Please verify your cylinder specifications before installation to ensure optimal performance.

Product Specs

• Piston Diameter: 71.935 mm
• Cylinder Diameter: 72.00 mm
• Displacement: 300 cc
• Engine Type: 2-Stroke

Fitment List (Key Models)

Year Range	Vehicle Model Series
2024	KTM 300 SX, XC-W, XC-W Hardenduro
2023-2024	Husqvarna TE300, TE300 Pro, TX300
2024	Gas Gas EC 300, EX 300

Frequently Asked Questions

Q: Why is replacing the wrist pin bearing recommended?
A: The wrist pin bearing is subject to massive loads. Over time, it develops microscopic fatigue. Replacing it with a fresh bearing ensures the pin remains stable and prevents catastrophic failure that could destroy a new piston.

Expert Pro-Tip: After installing your new piston, perform a heat-cycle break-in. Run the engine until it reaches operating temperature, then let it cool completely. Repeat this 2–3 times to allow the piston and rings to properly "seat" to the cylinder walls before hitting the track or trail.

Recommended Pairings

• Essential Off-Road Motorcycle Tools
• High-Performance Premix Oil & Coolants

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their machines. Every order ships fast from our Central Florida location.

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