hi yes indeed you can replace the relay w/an aftermarket part. Bosch makes a 30 amp relay that is avail. at most any aout parts or electronics store. the avg. cost is around $11.00. the relay will not fit into the kymco plug, so you will have to remove their plug, and crimp or solder spade terminals onto the ends of the fact, harness. if you are handy w/ a volt meter you can easily identify the nesc. wireing posts.