Wossner 8890DA Piston Kit - 2013-2014 Kawasaki KX450F Standard Size A

Wossner 8890DA Premium Forged 4-Stroke Piston Kit - Standard Size A

Maintain the holeshot-winning power of your Kawasaki with the Wossner 8890DA Piston Kit. Specifically engineered for the 2013-2014 Kawasaki KX450F, this Standard Size A forged kit is the professional choice for restoring Factory Quality performance and reliability. At Moto-House MX, we know that the KX450F is built for aggression on the track, and Wossner’s aerospace-grade components ensure your engine stays at peak compression moto after moto.

Forged from aerospace-grade aluminum alloy, this piston provides superior structural integrity and thermal resistance compared to standard cast pistons. The 8890DA features advanced radial boss machining and enhanced oiling slots for improved wrist pin lubrication—a critical factor for high-RPM 450cc engines. With a 12.5:1 compression ratio and a permanent skirt coating to reduce friction, this kit delivers a quieter-running engine and a smoother break-in period.

Top Features: Wossner 8890DA Piston Kit

• Standard Size A (95.96mm Piston): Precision-engineered for the standard 96.00mm bore to maintain factory clearances and peak efficiency.
• Aerospace Forged Alloy: High-strength aluminum construction built to withstand the mechanical stress of competitive 4-stroke racing.
• Advanced Lubrication Design: Radial boss machining and annular grooves ensure consistent oil delivery to the wrist pin.
• Low-Friction Skirt Coating: Permanent coating reduces piston rock and mechanical noise for a smoother engine operation.
• Precision Ring Seal: Specialized ring land treatment improves oil control and maximizes combustion efficiency.
• Complete Assembly: Kit includes the forged piston, high-performance rings, wrist pin, and pin locks.

Expert Pro-Tip: The 2013-2014 KX450F is a powerhouse known for its strong mid-to-top end pull. When performing a top-end refresh, always inspect your cam chain for wear and ensure your cylinder walls are free of deep vertical scoring. Using a new top-end gasket kit and fresh synthetic oil is essential to protect your new high-compression forged piston during the critical first hours of operation.

Fitment List

Year Range	Vehicle Brand	Vehicle Model
2013-2014	Kawasaki	KX450F

Frequently Asked Questions

Q: Is this a Standard Size piston?
A: Yes, this is the 95.96mm piston designed for the standard 96.00mm bore. It is the correct choice for cylinders that are within factory service limits and do not require boring.

Q: Does this kit include the gaskets?
A: No, the kit includes the forged piston, rings, wrist pin, and locks. A top-end gasket kit is sold separately and is required for a professional, leak-free rebuild.

Q: Why choose a forged piston over cast for my KX450F?
A: Forged pistons are denser and significantly stronger than cast alternatives. They are better suited to handle the high heat and explosive pressures found in a modern 450cc motocross engine, providing an extra layer of reliability.

Recommended Pairings

• Complete Top End Gasket Set: Required for a professional seal and proper compression.
• Motorex Cross Power 4T Oil: The recommended synthetic lubrication for high-performance 4-stroke race engines.

Restore your Kawasaki’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.