Ryan,
Welcome to MTF! A lot of friendly and helpful folks reside here. I'd be interested to see pictures of your mowers. The 21" should have a model tag on the back of the mower, if it is missing we can identify it by pictures. If it is older, the model number could be on the cylinder head near the spark plug. You're going to love that 5237 if you end up keeping it / fixing the deck. 19" mowers are great.
Bob
Welcome to MTF! A lot of friendly and helpful folks reside here. I'd be interested to see pictures of your mowers. The 21" should have a model tag on the back of the mower, if it is missing we can identify it by pictures. If it is older, the model number could be on the cylinder head near the spark plug. You're going to love that 5237 if you end up keeping it / fixing the deck. 19" mowers are great.
Bob