350B - BULLDOZER 15 AIR CLEANER, MUFFLER AND MANIFOLDS Parts group 15 AIR CLEANER, MUFFLER AND MANIFOLDS 15 AIR CLEANER, MUFFLER AND MANIFOLDS . AIR CLEANER [01C02] AIR CLEANER RESTRICTION INDICATOR [01C03] PRE-CLEANER [01C03] AIR INTAKE (DIESEL) [01C04] OIL FILLER INLET [01C04] EXHAUST MANIFOLD (DIESEL) [01C05] INTAKE AND EXHAUST MANIFOLD (GASOLINE) [01C05] MUFFLER [01C06] CANOPY MUFFLER STACK EXTENSION (WHEN EQUIPPED WITH DOZER) [01C07]