Wossner 8606DB Piston Kit - 2005-2007 Suzuki RMZ450 Size B

Wossner 8606DB Premium Forged 4-Stroke Piston Kit - Size B

Refresh the heart of your open-class racer with the Wossner 8606DB Piston Kit. Engineered specifically for the first-generation Suzuki RMZ450 (2005-2007), this Size B forged kit is the professional choice for restoring "Factory Quality" power and reliability. At Moto-House MX, we know that the early RMZ450 models are legendary for their handling and grunt; Wossner’s aerospace-grade forged components provide the precision fitment needed to keep these high-performance machines at their peak.

Forged from aerospace-grade aluminum alloy, the 8606DB features a 12.0:1 compression ratio, designed to deliver consistent, smooth power across the entire RPM range. Wossner incorporates advanced features like radial boss machining and enhanced oiling slots for superior wrist pin lubrication—critical for the thermal demands of a 450cc 4-stroke engine. The permanent skirt coating minimizes internal friction and piston rock, resulting in a quieter engine and a more controlled break-in period. This Size B piston (95.47mm) is precision-matched for 95.51mm bores, making it the perfect choice for an engine refresh that compensates for standard cylinder wear.

Top Features: Wossner 8606DB Piston Kit

• Size B (95.47mm): Precision-engineered for 95.51mm bores, providing the correct piston-to-wall clearance for cylinders that have seen standard service.
• 12.0:1 Compression Ratio: Matches factory specifications for reliable power delivery and long-term mechanical health.
• Aerospace Forged Alloy: Significantly stronger and more heat-resistant than OEM cast pistons, ideal for the high-impact stress of motocross racing.
• Enhanced Lubrication Design: Radial boss machining and annular grooves ensure the wrist pin stays lubricated during intense, high-load operation.
• Low-Friction Skirt Coating: Permanent coating reduces drag and protects your cylinder walls from premature wear.
• Complete Assembly: Kit includes the forged piston, high-performance rings, wrist pin, and pin locks.

Expert Pro-Tip: The 2005-2007 RMZ450 was Suzuki's first venture into the 450cc 4-stroke world. To keep these engines running strong, maintaining the top end is vital. Size B is the preferred choice for a refresh when your cylinder is still in good condition but has worn slightly beyond the ideal clearance for a Size A piston. During installation, always check your valve clearances and timing chain tension. Using a fresh top-end gasket kit is essential for a professional-grade seal and maintaining proper compression.

Fitment List

Year Range	Vehicle Brand	Vehicle Model
2005-2007	Suzuki	RMZ450

Frequently Asked Questions

Q: Why should I choose Size B instead of Standard?
A: Size B (95.47mm) is 0.01mm larger than the base size. It is specifically designed to restore the correct clearance in cylinders that have experienced natural, microscopic wear, preventing piston rock and ensuring maximum ring seal.

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

Q: Is a forged piston better than a cast piston?
A: Yes, forged pistons are much denser and stronger than cast alternatives. They handle high heat and mechanical stress far better, providing a significant safety margin during racing and high-performance riding.

Recommended Pairings

• Complete Top End Gasket Set: Ensure a professional, leak-free seal and proper engine compression.
• Motorex Cross Power 4T Oil: Premium synthetic lubrication specifically designed for high-performance 4-stroke race 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.