I have a discontinued great planes p51D 40 arf. I would like to replace the cowl. Does anyone know where I could get this part, or any suggstions on how to replace it. Thank you in advance!

One possibility is to get the cowl from hangar 9 for the original PTS mustang (with the yellow tail) that has no engine cutout. I bought one of those to use with my great planes 40 size mustang built from a kit. It fit my plane perfectly, so it might fit your great planes 40 mustang arf. Not sure about paint colors though.

Ed

Check with GP. They often stock parts for discontinued models until they are sold out