hi, when finding parts return to parts sheet with part number or instruction manual. the L in the code means left. the best place to find spares for hyper 7's is
www.modelsport.co.uk
www.apexmodels.co.uk
i am telling you this as i have a hyper 7 and its where i get my spares.
hope i helped, like to hear back and see if you got sorted out.