HONDA Piston CR450F 4T 02-03

The HONDA Piston CR450F 4T 02-03 is a replacement piston assembly for the Honda four-stroke 450 cc motocross engine from the 2002–2003 era. Produced by Vertex Pistons, it is intended for applications associated with Honda CR450F 4T / CRF450R of these years where a like-for-like piston change is required.

Technical specifications

• Application: Linked to Honda CR450F 4T / CRF450R 2002–2003 engines
• Manufacturer: Vertex Pistons
• Component type: Engine piston for four-stroke single-cylinder motocross engine
• Engine capacity: For 450 cc Honda four-stroke off-road engine family
• Configuration: Designed as an OEM-style replacement piston assembly

Use and service context

Use this piston when overhauling the top end due to wear, loss of compression, piston damage, or after a scheduled engine refresh interval. It is typically replaced together with piston rings, circlips, and small-end bearing as part of a complete top-end service.

Installation

Install the Vertex HONDA Piston CR450F 4T 02-03 using standard engine service procedures, with appropriate piston ring compressors, gudgeon pin tools, and a calibrated torque wrench following the Honda workshop manual specifications; inspection and measurement of cylinder and clearances are advised, with machining carried out if required.