I do have a solution for your 2021 Winnebago Hike with the Lippert slam handles. The Lippert Slam Latch LC227214 that you mentioned is not currently an active product, but I have found a Lippert slam latch kit that will work for you. The Lippert Standard Door Latch Kit # LC317649 is most likely the product that you saw. This is the standard kit that is made as a replacement slam latch handle for many travel trailers and RVs. This come with 2 keys.
As this kit should work for you, it is... view full answer...