Hello, I'm David. I'll be helping you solve your problem. That model number isn't coming up in any parts databases. Often BBQs are manufactured by one company and sold under the brand of another, so it can difficult to locate parts for them. Your best bet will be to call JennAir directly at 800-536-62 47. Give them the model number and they will able to locate what you need.
Already done that prior to asking the experts. Jen Air does not have any part availalble to switch from one fuel source or the other. The units that are sold by Home Depot and Lowes that carry the Jen Air moniker are not made by Jen air and the service tech that I spoke to did not seem to care and was no assistance at all. What I was hoping for in asking the question was to have answer from a barbeque specialist. No offense but your answer was not what I had hoped for.