H2O CONNECTION KIT applies to Code 3115374 ALUMIN-CYLINDER KIT Ø 52 H2O MHR BIG BORE Testa Rossa mod-head 3115385 ALUMIN-CYLINDER KIT Ø 52 H2O MHR BIG BORE Testa Rossa mod-head 3116992 ALUMIN-CYLINDER KIT Ø 52 H2O MHR BIG BORE Testa Rossa mod-head 3115901 CYLINDER KIT Ø 47,6 MHR FLANGED MOUNT testa rossa 3115883 CYLINDER KIT Ø 52 MHR FLANGED MOUNT testa rossa 5715844 MHR C-one COMPL. ENGINE CRANKCASE (for PIAGGIO engine) 5716654 MHR C-one COMPL. ENGINE CRANKCASE (for YAMAHA engine) 5715845 MHR RC-one COMPL. ENGINE CRANKCASE (for PIAGGIO engine) 5716668 MHR RC-one COMPL. ENGINE CRANKCASE (for YAMAHA engine)