Piston Vintage Nos

Piston Vintage Nos
ARE THESE SNOWMOBILE,BOATMOTOR,OR MOTORCYCLE PISTONS?

I HAVE A LOT OF PISTONS AND RINGS IM TRYING TO IDENTIFY THEY ARE ALL GENUINE SUZUKI PARTS PROBABLY NOS PARTS THE RINGS ALL START WITH12140 AS PREFIX PISTONS ARE MOSTLY 12110 AND 12120 FOR INSTANCE 12120-3100,ALSO HAVE 12120-31002 THEN SAYS 050 AFTER THAT NOT SURE IF THE OVERSIZE #S IS SCREWING IT UP.. CAN ANYONE GIVE ME A WEB PAGE WITH VINTAGE #S ON BOAT,MOTORCYCLE,SNOWMOBILE PARTS TO HELP ME LOOK THESE UP

suzuki outboard parts catalogues.

http://store.brownspoint.com/microfiche.asp

these have part numbers but they're by model number, but each model # web page has a parts # lookup