Wossner 8219DA Piston Kit - 2004-2005 KTM 300 EXC / MXC Standard Size A

Wossner 8219DA Premium Forged 2-Stroke Piston Kit - Standard Size A

Restore the legendary torque and power of your KTM 300 with the Wossner 8219DA Piston Kit. Specifically engineered for the 2004-2005 KTM 300 EXC and MXC models, this Standard Size A forged kit is the professional choice for maintaining Factory Quality performance. At Moto-House MX, we know the "300" is a staple of the enduro world; Wossner’s aerospace-grade forged components provide the extra durability needed for technical trails and high-load climbs.

Forged from aerospace-grade aluminum alloy, this piston offers superior structural integrity and heat resistance compared to standard cast alternatives. The 8219DA features a permanent skirt coating to minimize friction and piston rock, ensuring a quieter engine and smoother throttle response. This dual-ring design provides an exceptional combustion seal, which is critical for the high-torque delivery that 300cc 2-stroke riders demand.

Top Features: Wossner 8219DA Piston Kit

• Standard Size A (71.94mm Piston): Precision-engineered for the standard 72.00mm bore to restore original factory tolerances and compression.
• Aerospace Forged Alloy: High-strength aluminum construction built to withstand the mechanical stress of competitive off-road racing and adventure touring.
• Low-Friction Skirt Coating: Permanent coating reduces wear on the cylinder walls and provides a quieter engine operation.
• Dual-Ring Design: Optimized for a consistent combustion seal and improved heat transfer for sustained power in technical terrain.
• Complete Assembly: Kit includes the forged piston, high-quality rings, wrist pin, and clips.

Expert Pro-Tip: The 2004-2005 KTM 300 engines are known for their bulletproof nature, but they still require a fresh top end to maintain that signature bottom-end grunt. When installing the 8219DA, always inspect your power valve for carbon buildup and ensure it moves freely. Replacing your small-end wrist pin bearing and using a fresh top-end gasket kit during installation is essential for a professional-grade engine refresh.

Fitment List

Year Range	Vehicle Brand	Vehicle Model
2004-2005	KTM	300 EXC / EXC Six Days
2004-2005	KTM	300 MXC

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 ideal choice for cylinders that are within factory wear limits and have not been bored over.

Q: What are the benefits of a forged piston for enduro riding?
A: Forged pistons are much stronger than cast versions. In the technical, high-heat environments typical of enduro riding, a forged piston offers better resistance to cracking and thermal expansion, ensuring reliable power when you need it most.

Q: Does this kit include the wrist pin bearing?
A: No, the kit includes the piston, rings, pin, and clips. We highly recommend purchasing a new high-quality small-end bearing separately for every top-end rebuild.

Recommended Pairings

• Top End Gasket Kit: Essential for a professional, leak-free engine rebuild with a fresh set of gaskets.
• High-Quality 2-Stroke Oil: Keep your new forged piston protected with premium lubrication designed for high-performance engines.

Restore your KTM’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.