This is the aluminum cover plate/needle valve for the O.S. Max .40-.46 FX remote needle valve engines. INCLUDES: One Aluminum cover plate/needle valve housing. COMMENTS: Brass fitting for fuel inlet from fuel tank pre-installed. Also available with needle valve pre-installed OSMG4127. upaxy4/9/97 JAL 1/18/97 BOX DIMENSIONS: 2.25" W. X .75" H. X 3.75" L. BOX WEIGHT: .04 LBS.