Which insert for what▾
AE32129 inserts for the VHM head AA33098
VHM standard: 250SX / TC250
VHM standard: 250EXC / TE250
for the VHM 12° piston
In general: smaller volume = higher compression = more pull but better fuel needed; larger volume = lower compression, the engine revs out more freely and tolerates pump fuel. If in doubt, take the standard.
Based on the VHM manufacturer charts.
VHM head insert KTM 250 SX 07-16 / Husqvarna TC 250 14-16 – F 21.45 cc
SKU: AE32129-F
Insert (combustion chamber)
Price incl. VAT (23%)
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24-month warranty
on all parts
Which insert for what▾
AE32129 inserts for the VHM head AA33098
VHM standard: 250SX / TC250
VHM standard: 250EXC / TE250
for the VHM 12° piston
In general: smaller volume = higher compression = more pull but better fuel needed; larger volume = lower compression, the engine revs out more freely and tolerates pump fuel. If in doubt, take the standard.
Based on the VHM manufacturer charts.
Exchangeable combustion chamber (insert) for the VHM cylinder head AA33098. Chamber volume 21.45 cc. 🔴 The insert fits ONLY the VHM head AA33098 — it cannot be fitted into the OEM head. For the stock (OEM) piston. Compared with the VHM standard (21.80 cc) it has a smaller volume, i.e. higher compression: the engine pulls harder but needs higher-octane fuel, otherwise it may detonate. 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: Husaberg TE 250 (2011–2014); Husqvarna TE 250 (2014–2016); KTM 250 EXC (2007–2016); Husqvarna TC 250 (2014–2016); KTM 250 SX (2007–2016); KTM 250 SXS (2007–0); KTM 250 XC (2007–2013); KTM 250 XC-W (2007–2016).
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