Flywheel differnces

[wakepics]

I have a 1992 200 XRI 0D122896. My flywheel has a cracked magnet. I've tried finding replacement magnets but it doesn't seem like they're available, so I'm trying to find a replacement flywheel. I'm seeing both 859238 and 817632 as compatible flywheels. From photos online, it looks like 859238t4 has a metal ring that lines the magnets, whereas 859238t16 does not have the ring. My current flywheel doesn't have the ring. Would either fit my motor? It seems snug around the stator, so I'm questioning whether the T4 would fit with the metal ring.

[EuropeanAM]

Should be the cast-style flywheel with the vent slots, as best I can tell.

Current Part Number: 859238T16

Previous Part Numbers (that supersede to the above):

859238A8
817632A12
817632A2
9841A7
9841A2

NOTE: Numbers you find embossed or printed on parts are PRODUCTION numbers (they may or may not resemble any actual part number you can order). They are most useful in comparing two items you have "in hand" to make sure they match.