HONDA Piston CR450F 4T 2004

HONDA Piston CR450F 4T 2004

The HONDA Piston CR450F 4T 2004 is a forged replica piston kit for 4-stroke Honda CRF450R 2004-2008 and CRF450X 2004-2017 engines, matching the standard 96.0 mm OEM cylinder bore with a 12.1:1 compression ratio. This Vertex Pistons kit restores correct combustion characteristics and clearances in 450 cc engines that have lost performance through wear.

Technical specifications

• Application: Honda CRF450R 2004-2008; Honda CRF450X 2004-2017
• Engine type: 4-stroke, 450 cc
• Bore type: Standard bore for OEM 96.0 mm cylinder
• Piston diameter: 95.98 mm
• Compression ratio: 12.1:1
• Piston style: Forged replica piston kit
• Material: Forged 2618 aluminum
• Vertex reference: 23003D
• Surface treatment: T-5 heat-treated, molybdenum disulphide skirt coating

What's included

• Piston
• Piston rings
• Wrist pin
• Circlips

Use and service context

Use this Vertex HONDA Piston CR450F 4T 2004 kit when rebuilding CRF450R/X engines showing low compression, blow-by, or noise from piston and ring wear. Typical replacement pairs this kit with fresh gaskets and, where needed, cylinder inspection and honing to maintain correct clearances and ring sealing.

Installation notes

This piston kit installs as a direct-fit replacement in the OEM cylinder; follow Honda workshop manual torque values, use appropriate ring compressors and circlip tools, and verify cylinder and ring end gaps, with machining or honing performed as required by measured wear.