Recliner Mechanism Replacement

[Sinkerhawk]

I have a Newport sectional with a bent recliner mechanism. It appears that most of the components have a slight bend so I'm thinking replacement of the entire unit is the best solution. The problem is that the sofa and the mechanism have no identifying serial numbers on them. The sofa only has "Do Not Remove" tags and the mechanism just says SIG (Shanghai Industries Group) on it. I can tell you the mechanism is a manual and stationary and only has three positions. I believe the release handle is called a D-ring. Sorry, I've never worked on recliners, but the original manufacturer is out of business from what I can tell and there are no companies nearby that work on the mechanisms. I just need to know how I go about figuring out which recliner mechanisms I see online I can replace it with. Thanks!