This gasket really needs renewing whenever this cover is removed and re-fitted, but even if you re-use this consumable item, at the first sign of damage or degradation, replacing with new will ensure no moisture enters the generator area of the engine. The parts availability for these super smooth Six's is not improving, but checking on our online 'parts list' fiche will show at a glance exactly what is and what is not currently available. If the item is down to just the odd few left, we even tell you exactly how many we have left!