** [GE] stove model # is J904 and the exhaust hood model # is J810. **
That information looks to be incorrect and incomplete as well.
Models J810S1 and J810V1 are GE cooktop models. Models J904T1 and J904V2 are vent hoods from the late 50's early 60's both of which took fan motor part # WB26X6 which looks to not be available any longer.
If you need a motor for either of the above hood models, you can try taking the original to a local HVAC supplier to see if they can match a suitable universal replacement or to a motor repair shop to see if it can be repaired (only a *very* slim chance with the type of motors usually used in range hoods).
You could also try posting a 'want ad' at the following site devoted to discontinued, obsolete and NLA (no longer available) appliance parts and related items.
LINK > www.itsNLA.com
The Appliance Information Site
DY GalOur 23 year old bathroom exhaust fan works fine... 3 REPLIES