As I learned here a while ago, the metal ring is called a fire ring.
The fire ring gasket is a much better than gasket without the ring. The non fire ring gasket doesn't seal as well and can blow out a hole , usually near the exhaust. From there on, I've always buy one with fire ring.
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Two 125's and a 124 all with 42" decks
Plow blade
#2 Cart
QA36 snowthower
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