This safety valve has a thread of 3/8'' 26TPI and was made for the SE2 and SE3 engines. However, there were exceptions! Mamod no longer make this item but we have sourced excellently made high quality spares for older engines. These carry our normal no-quibble guarantee so you can buy with complete confidence. If you are in doubt about anything in connection with this item or the model it is intended for, why not email us with your question before you make your purchase. We will be very happy to help you - and we always respond quickly!
