Wossner 8327DA Piston Kit - KTM / Husqvarna / Gas Gas 300 Size A

Wossner 8327DA Standard Series Forged 2-Stroke Piston Kit - Size A

Give your 300cc powerhouse the precision it deserves with the Wossner 8327DA Piston Kit. Specifically engineered for the KTM, Husqvarna, and Gas Gas 300 family—spanning from the classic carbureted models to the latest TPI and fuel-injected platforms—this Standard Series forged kit is the professional choice for a top-end refresh. At Moto-House MX, we know that 300cc riders demand low-end torque and long-term reliability; Wossner’s aerospace-grade forged components provide the strength and thermal stability needed for grueling enduro trails and high-speed desert loops.

Forged from premium aluminum alloy, the 8327DA features a dual-ring design. This configuration is preferred for 300cc woods and off-road bikes as it provides superior heat transfer to the cylinder wall and improved secondary compression, resulting in a broader powerband and increased piston stability. Wossner’s optimized machining ensures the piston remains lightweight for quick throttle response while maintaining reinforced crown and skirt walls. The permanent skirt coating reduces internal friction and piston rock, ensuring a quieter engine and a more efficient break-in. This Size A piston (71.94mm) is precision-matched for 72.00mm bores, making it the ideal solution for cylinders that are new or within factory-fresh tolerances.

Top Features: Wossner 8327DA Piston Kit

• Size A (71.94mm): Precision-engineered for 72.00mm bores to maintain factory-spec clearances and maximize engine life.
• Dual Ring Design: Enhances heat dissipation and improves sealing for the consistent, tractor-like torque 300cc riders rely on.
• Aerospace-Grade Forging: Offers significantly higher durability and fatigue resistance than OEM cast pistons, essential for high-load off-road riding.
• Low-Friction Skirt Coating: Permanent molybdenum disulphide coating protects the cylinder wall and reduces wear during high-heat operation.
• Optimized Strength-to-Weight: Engineered for lightness to improve engine response without sacrificing structural integrity.
• Complete Assembly: Kit includes the forged piston, high-performance rings, wrist pin, and circlips.

Expert Pro-Tip: The KTM/Husqvarna/Gas Gas 300 engine is legendary for its longevity, but a fresh top end is the only way to keep your "300" feeling like a new bike. Size A is the correct choice for a cylinder that is in perfect condition or has just been replated. During installation on TPI or fuel-injected models, ensure your power valve is cleaned of carbon build-up for smooth operation. Pairing this build with a fresh top-end gasket kit and premium premix oil will ensure your machine continues to dominate the technical trails.

Fitment List

Year Range	Vehicle Brand	Vehicle Model
2006-2023	KTM	300 XC / XC-W / EXC / TPI / Six Days / Erzbergrodeo
2014-2023	Husqvarna	TE300 / TE300i / TX300 / TX300i
2021-2025	Gas Gas	EC 300 / EX 300 / MC 300

Frequently Asked Questions

Q: Is this a Standard Size piston?
A: Yes, this is the 71.94mm piston designed for the standard 72.00mm bore. It is the correct choice for cylinders that are new or within original factory service limits.

Q: Why choose Wossner for a 300cc enduro bike?
A: Wossner forged pistons are stronger and more resilient than OEM cast parts. In a 300cc engine, which often deals with high heat and low-RPM lugging, the added durability of a forged piston is essential for long-term reliability.

Q: Does this kit include the gasket set?
A: No, the kit includes the forged piston, rings, wrist pin, and clips. A complete top-end gasket set is sold separately and is required for a professional-grade rebuild.

Recommended Pairings

• Complete Top End Gasket Set: Ensure a professional, leak-free seal and proper engine compression.
• Motorex Cross Power 2T Oil: The high-performance lubricant choice for KTM/Husqvarna/Gas Gas 2-stroke engines.

Restore your machine’s power and precision today. Buy now at Moto-House MX!

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The Best Motocross/UTV & ATV Shop in Central Florida. Stop by our local store in Montverde, FL or enjoy lightning-fast shipping across the USA.