Vertex Complete Top End Kit - Casted Piston Cylinder kitRef : VER00401A / 1121198003

VERTEX Complete Top-End Kit - Cast Piston (Manufacturer part number: VTK23928C-4). Designed to facilitate engine servicing on motocross machines, this top-end kit includes all the necessary components for a clean and quick piston replacement along with its peripherals. Ideal for saving time in the workshop and avoiding trips to the spare parts store.

Included:

• cast aluminum piston
• rings
• piston pin
• circlips
• top-end gaskets
• needle bearing (for 2T applications)
• timing chain (included in 4T kits)

Technical Specifications:

• Compatible bore diameter: 54.00 mm
• Piston diameter: Ø 53.96 mm
• Oversize letter: C
• Piston compression: Standard
• Material: aluminum (cast piston)

Compatible with the Cross category — specifically models 125 (KTM 125 SX, Husqvarna TC 125, GasGas MC 125 - 2025 model year) to be verified according to the engine reference. Before installation, check the bore and tolerances and follow the manufacturer's recommendations for break-in and piston-ring clearance. This kit allows for a complete top-end refurbishment to get back on the road or track with confidence.