The casters on my Genesis 320 finally bit the dust, which was a blessing in disguise. I was never pleased with the original small plastic casters - they seemed better suited for light-duty indoor application such as an office chair on a smooth floor. Also, I wasn't thrilled with shelling out close to $100 for a set of OEM replacements. Instead I acquired four industrial 4" swivel casters and brake kits for around $42 from Zoro/Grainger. They perform much better than the OEMs. With the larger diameter wheels and added sturdiness, my grill now rolls like a dream over rough concrete surfaces. If your leg inserts are still good, which mine were, they will accept casters with standard 7/16" grip-ring stems. For anyone interested, I would be happy to provide more details. See pic
(as a newbie, I inadvertently posted to the wrong forum section ... apologies for the redundancy)
(as a newbie, I inadvertently posted to the wrong forum section ... apologies for the redundancy)