VERTEX Piston Kit (Cast Replica) is designed as a direct, OEM-form replacement piston kit for 125cc 2-stroke engines, ideal when you want dependable performance without changing the engine’s character. The cast replica design matches original specifications, making it a smart choice for routine top-end refreshes and reliable rebuilds.
To reduce wear during the first running hours and help the engine settle in quicker, the piston skirt is coated with a high-tech Molybdenum Disulphide (moly) coating. Each piston is also heat treated with a T-5 hardening and tempering cycle, improving durability under typical motocross and enduro operating loads.
Key features:
✅ Cast Replica design – cast piston in original OE form
✅ T-5 heat treatment – hardening & tempering for strength and stability
✅ Moly-coated skirt – faster break-in time and increased piston life
Benefits of use:
🔹 OEM-style fit and function for straightforward top-end service and consistent results
🔹 Smoother break-in thanks to the moly skirt coating, helping reduce scuffing risk
🔹 Light yet strong construction from gravity-cast aluminum alloy with 18% silicone content
Technical specifications:
📌 Brand: VERTEX
📌 Vendor part number: 23004D
📌 Engine type: 2-Stroke
📌 Displacement: 125 cc
📌 Bore size: 54.00 mm
📌 Piston diameter: 53.98 mm
📌 Piston size: Standard Size D
📌 Piston material: Cast aluminum alloy
📌 Ring material: Nitride-coated steel
📌 Skirt coating: Moly coated
📌 Units: Kit
Why choose this product?!
⭐ Proven VERTEX quality built for dependable top-end maintenance
⭐ OEM-replacement piston and ring approach for correct fitment and reliable sealing
⭐ Great choice for riders who want a straightforward, durable rebuild solution
