Is this from my Troy-Bilt Mustang Pivot 46? Model 17ARCBDT011. I also have a 42"

[Doon]

I was in my backyard today mowing down some picker bushes. On one pass I saw something in the spot I mowed and it turned out to be a broken gear-like cast part. The picture is below. I've been going through the diagrams and can't find the part. Does anyone know if this is from a 2018 Troy-Bilt Mustang Pivot 46 Model 17ARCBDT011. I also have a 42" Craftsman riding mower it could have came off (I was using it today also). Any help would be appreciated. Thanks

 

[mechanic mark]

MANUAL & PARTS FOR TROY BILT 17ARCBDT011 - Google Search

 

[bertsmobile1]

If you have a dial to set the deck height then it is the adjuster

 

[Doon]

If you have a dial to set the deck height then it is the adjuster

bertsmobile1: No dial, they both have handles. Thanks though.