Product description

The Wossner Piston kit For Yamaha YFZ450 2004-2005 94.95 mm is part of the latest collection from Wossner.

Features:

• Enhanced piston pin oiling slots, radial boss machining, and annular grooves for improved wrist pin lubrication
• Lightweight piston with a tight piston wall clearance for a quieter running engine
• Skirt coated for reduced friction and improved break in performance
• Ring land treatment for improved ring seal and oil control
• Double bridged forging design where noted
• Kit includes piston, rings, wrist pin and pin locks
62.00 mm stroke for '04-'05 Yamaha. 63.40 mm stroke for '06-'24 Yamaha. 13.0:1 compression ratio for '04-'05 Yamaha. 12.4:1 compression ratio for '06-'09 carbureted Yamaha. 12.6:1 compression ratio for '09-'13 EFI Yamaha. 12.6:1 compression ratio for '12-'13 carbureted Yamaha. 12.8:1 compression ratio for '14-'24 EFI Yamaha. Kit Includes: • Piston #8601DA • Ring Set #RIK95.00 • Wrist Pin #WP038-SP • Retaining Clips #CW20

Specifications:

• Bore - Oversize Metric: Standard
• Bore - Oversize: Standard
• Bore Size: 95.00 mm
• Compression Ratio Imperial: 12.4
• Compression Ratio Imperial: 13.0
• Compression Ratio: 12.4
• Compression Ratio: 13.0
• Engine Type: 4-Stroke
• Model: Pro Series
• Piston Material: Aluminum Alloy| Forged
• Piston Size Metric: 94.95 mm
• Piston Size: 94.95 mm

To fit:

• YAMAHA YFZ 450 2004 American Models
• YAMAHA YFZ 450 2005 American Models

Manufacturer part number: 8601DA

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Contents

Your package will include the following:

• 1 X Wossner Piston kit For Yamaha YFZ450 2004-2005 94.95 mm