My spark has around 15 hours on it. I have replaced the wear ring twice now. This time I purchased the stainless steel wear ring. It fit perfectly. I had it changed in about 15 minutes. I will not purchase another plastic wear ring for my jet skies.
Wear ring is made well. I was never told that the seal was sold separately. This information, would've sped up the process of getting my jet ski back on the water.
I had this installed over 1 year... i lost around 12 mph of speed my top speed now its 38mph and I assume this is because the stainless steel wear ring and the propeller are not the perfect size for each other.