Perkins 1204F-E44TA Operation And Maintenance Manual page 59

SEBU9063-07 59
Operation Section
Sensors and Electrical Components
Illustration 46 g03421154
Typical example
(22) Inlet Air Temperature Sensor (24) Secondary Speed/Timing Sensor (25) Back Pressure Valve
(23) Water in Fuel Switch (Camshaft Position Sensor)
Aftertreatment Views
• DOC Diesel Oxidation Catalyst
• SCR Selective Catalytic Reduction
• DPF Diesel Particulate Filter
• DEF Diesel Exhaust Fluid
Two different types of aftertreatment are available.
Both types of aftertreatment will have an identification
module installed.