AJS & Matchless Owners Club

Not sure of the size but I think it will be the larger size as they are quite big plugs. It has been said before that the plugs are interchangeable and if they are put into the engine incorrectly when out of the frame then once the engine is back in the frame you wont the able to remove the front one(heads of plugs are different size) due to the size of the hole in the bottom frame. I don't see how that is true because my plugs although looking similar thread size are definitely different threads??? and cannot be interchanged and just in case anyone says anything, they both are the original plugs

Thanks for the info guys!

Yep! As ajscomboman said these plugs are not available anymore from club parts, if anyone else knows of a possible supplier it would be helpful, if not then I will take combinations suggestion, thanks!

Hi did these fit as I need to find a source for these also: Cheers

I need the rear one aswell. Probably make my own, as with the other parts I couldn't find anywhere.

Ended up making my own magnetic one.