Tim,

I think the part you are looking for that holds the check valve is KSJ 645, Fuel Filter Holder.

The K&S Distributor in the US has them. This should direct you directly to the part you are looking for. http://rchelisplus.com/cart/cart.php...category_id=60

It that doesn't work just go to: http://rchelisplus.com Look at the KSJ parts and then the heli fuel system parts.