From what I can see these are very much the same as LawnKing or Castelgarden, they are called ng464tr as well. If its the engine information, then you need the model,type and code(see www.briggsbits.co.uk/acatalog/shop.html)
or try this site :- www.partsandservice.com/html/Briggs/9D900.html
If its a specific point then post a new question...I have a manual for engine and mower
Rob, July 2008
