PISTON AND CON ROD GOOD ENG CODE CBA BIG END:53.62MM SMALL END:25.91MM CROWN:80.34 (EXCH) B6 3C. This Warranty only covers the main item(s) as described on the invoice i.e. When left attached to for example an engine, this warranty does not cover for water pump, fuel pump, manifolds, clutch, cam belt, timing chain/ tensioner, rear main oil seals, driveshaft transmission seals, etc.