879312T20 Mercruiser HARNESS ASSEMBLY, Keyswitch/Halon Adapter

Engines with Series Turbochargers
Illustration 1 g02476176
(1) Air cleaner (2) Air inlet temperature sensor (3) Exhaust back pressure valve (4) Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF) (5) Inlet temperature sensor for the DPF (6) Soot sensor (7) Exhaust Cooler for the NOx Reduction System (NRS) (8) Turbochargers (9) Valve for the NOx Reduction System (NRS) (10) Temperature sensor for the NOx Reduction System (NRS) (11) Inlet pressure sensor for the NOx Reduction System (NRS) (12) Exhaust gas valve for the NOx Reduction System (NRS) (13) Air-to-air aftercooler (14) Wastegate regulator (15) Outlet pressure sensor for the NOx Reduction System (NRS) (16) Engine (17) Coolant temperature sensor (18) Crankshaft speed/timing sensor (19) Electronic unit injectors (20) Fuel cooler (21) Fuel pressure relief valve (22) Camshaft speed/timing sensor (23) Fuel injection pump and fuel temperature sensor (24) Fuel pressure sensor (25) Oil pressure sensor (26) Atmospheric pressure sensor (27) ECM (28) Fuel transfer pump (29) Primary fuel filter (30) Fuel strainer (31) Boost pressure sensor (32) Inlet manifold temperature sensor (33) Transfer pump inlet regulator (34) Secondary fuel filter (35) Fuel tankEngines with a Single Turbocharger
Illustration 2 g02420296
Typical example (1) Air cleaner (2) Air inlet temperature sensor (3) Exhaust Cooler for the NOx Reduction System (NRS) (4) Exhaust back pressure valve (5) Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF) (6) DPF inlet temperature sensor (7) Soot sensor (8) Turbocharger (9) Valve for the NOx Reduction System (NRS) (10) Temperature sensor for the NOx Reduction System (NRS) (11) Inlet pressure sensor for the NOx Reduction System (NRS) (12) Exhaust gas valve for the NOx Reduction System (NRS) (13) Air-to-air aftercooler (14) Wastegate regulator (15) Outlet pressure sensor for the NOx Reduction System (NRS) (16) Engine (17) Coolant temperature sensor (18) Crankshaft speed/timing sensor (19) Electronic unit injectors (20) Fuel cooler (21) Fuel pressure relief valve (22) Camshaft speed/timing sensor (23) Fuel injection pump and fuel temperature sensor (24) Fuel pressure sensor (25) Oil pressure sensor (26) Atmospheric pressure sensor (27) ECM (28) Fuel transfer pump (29) Primary fuel filter (30) Fuel strainer (31) Inlet manifold pressure sensor (32) Inlet manifold air temperature sensor (33) Transfer pump inlet regulator (34) Secondary fuel filter (35) Fuel tankSensor Locations for the Engine
The illustrations in this section show the typical locations of the sensors for the industrial engine. Specific engines may appear different from the illustration due to differences in applications.
Illustration 3 g02476638
(1) Coolant temperature sensor (2) Fuel pressure sensor (3) Inlet manifold temperature sensor (4) Boost pressure sensor (5) Electronic Control Module (ECM) (6) Atmospheric pressure sensor (7) Crankshaft speed/timing sensor (8) Engine oil pressure sensor (9) Fuel temperature sensor (10) Suction control valve for the fuel injection pump (11) Wastegate regulator (12) Inlet pressure sensor for the NOx Reduction System (NRS) (13) Outlet pressure sensor for the NOx Reduction System (NRS) (14) Exhaust gas valve for the NOx Reduction System (NRS) (15) Temperature sensor for the NOx Reduction System (NRS)
Illustration 4 g02476647
(16) Exhaust back pressure valve (17) Camshaft speed/timing sensor (18) Water in fuel switch (19) Oil level switch (if equipped) (20) Electric fuel transfer pump
Illustration 5 g02476653
(1) Coolant temperature sensor (2) Fuel pressure sensor (3) Inlet manifold temperature sensor (4) Boost pressure sensor (5) Electronic Control Module (ECM)
Illustration 6 g02476657
(6) Atmospheric pressure sensor (7) Crankshaft speed/timing sensor (8) Engine oil pressure sensor
Illustration 7 g02476662
(9) Fuel temperature sensor (10) Suction control valve for the fuel injection pump (11) Wastegate regulator (12) Inlet pressure sensor for the NOx Reduction System (NRS) (13) Outlet pressure sensor for the NOx Reduction System (NRS)