310 - BACKHOE, LOADER 15 AIR CLEANER, MUFFLER AND MANIFOLDS Parts group 15 AIR CLEANER, MUFFLER AND MANIFOLDS 15 AIR CLEANER, MUFFLER AND MANIFOLDS . AIR CLEANER AND RESTRICTION INDICATOR [01C02] AIR INTAKE (DIESEL) [01C03] CAMSHAFT [01C04] EXHAUST MANIFOLD (DIESEL) [01C05] INTAKE AND EXHAUST MANIFOLD (GASOLINE) [01C05] MUFFLER [01C06]