Although Wessex usually supply spare set of valve guides with all piston horns, you can now order additional spare set direct on website as required at -

Wessex will be adding more spares to website and if what you want is not listed please email the warehouse at If we don’t have in stock, then usually we can pick up on our next 6-weekly visit to the factory if not too large an item.
Click image for larger version. 

Name:	IMG_1461-2-min.jpeg 
Views:	2 
Size:	21.8 KB 
ID:	7473