VHM head insert KTM 250 SX 23-27 / Husqvarna TC 250 23-27 / GasGas MC 250 24-27 – 023 21.80 cc

Exchangeable combustion chamber (insert) for the VHM cylinder head AA33209. Chamber volume 21.80 cc, intended for 102 RON fuel. 🔴 The insert fits ONLY the VHM head AA33209 — it cannot be fitted into the OEM head. This insert is shaped for the VHM piston with a 12° dome (APKT25021754A1). Do not use it with the OEM piston — the lettered inserts are for that. This is the VHM standard insert for this head — the default choice if you are not sure which one to pick. Quick to change — the insert simply sits in the head and seals with O-rings. The last characters of the part number are engraved on the insert, so you cannot mix them up. Fits: KTM 250 SX (2023–2027); Husqvarna TC 250 (2023–2027); GasGas MC 250 (2024–2027).