formulavt

So i bought a used set of k planes, was sent some crappy pictures but was assured they are super clean....I know I know,lesson learned! So the transom plates are super corroded, bottom plates aren't too bad, pumps and lines are good. So i am wondering if I can just replace the transom plate and call it done, but the issue i am having is identifying a replacement part. The part number on the plate reads 107015, and I believe the manufacturer number is 841215c. My question is will any replacement transom plate work with my existing bottom plate and hardware??

smashm

How bad are they? Can't they be blasted, filled & painted?