C175-16 Generator Set Caterpillar

(1) Clean emissions module (CEM)

(2) Control box

(3) Radiator filler caps

(4) Radiator drain valves

(5) Engine oil drain valves

(6) Primary fuel filters

(7) Secondary fuel filters

(8) Engine oil level gauge

(9) Engine oil filler

(11) Closed Crankcase Ventilation (CCV) filters

(12) Engine exhaust/CEM inlet

(13) CEM exhaust

(14) Dosing cabinet

(15) Instrument panel

(16) Engine air cleaner

(17) Circuit breaker

Internal view of the Clean Emissions Module (CEM)

(1) Exhaust outlet

(2) Exhaust inlet

(3) Diesel oxidation catalysts (DOC)

(4) Diesel exhaust fluid (DEF) injector

(5) Mixing tube

(6) Selective catalyst reduction (SCR)

Diesel Exhaust Fluid (DEF) dosing cabinet

(1) Engine harness

(2) Remote DEF tank harness

(3) Power to cabinet

(4) DEF vent from tank

(5) Air to injector

(6) DEF tank

(7) DEF filter screen

(8) Drain valve

(9) DEF tank drain

(10) Air filter screen

(11) DEF to injector