Just bought exhaust to cylinder seals Part # 18293 KV3 004 for an MC28 engine. They seem very thick compared to the seals that were on there. they are the same thickness as the flange so i end up with a butt joint and fhe flange does not fit into the opening.

Measurements of the 2 different seals are:

ID OD Thickness
Installed 44.1 mm 55.5 2

18923KV3004 43.5 59.4 6 ( the steel part only, assuming the copper parts will crush flat)

Am I ok with those seals? I have no idea of the ones installed were correct.