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Cummins Marine Engine Position Sensor Locations for QSB, QSC, QSL & QSM

The following images below will show you where to find the current crankshaft and camshaft position sensors on Cummins marine “Q” series engines.

QSB 5.9

QSB 5.9 Engine Crank Position Sensor
QSB 5.9 Engine Crank Position Sensor
1. QSB 5.9 Camshaft Position Sensor 2. QSB 5.9 Crankshaft Position Sensor
1. QSB 5.9 Camshaft Position Sensor 2. QSB 5.9 Crankshaft Position Sensor

QSB 6.7

QSB 6.7 Engine Crankshaft Position Sensor
QSB 6.7 Engine Crankshaft Position Sensor
QSB 6.7 Engine Crank & Cam Position Sensors
QSB 6.7 Engine Crank & Cam Position Sensors

QSC 8.3

QSC 8.3 Engine Camshaft Position Sensor (Behind the Seawater Pump)
QSC 8.3 Engine Camshaft Position Sensor (Behind the Seawater Pump)
QSC 8.3 Engine Crankshaft Position Sensor (To the right of the black harness and behind the bell housing)
QSC 8.3 Engine Crankshaft Position Sensor (To the right of the black harness and behind the bell housing)

QSL 9

QSL 9 Engine Camshaft Position Sensor (Behind the Seawater pump)
QSL 9 Engine Camshaft Position Sensor (Behind the Seawater pump)
QSL 9 Engine Crankshaft Position Sensor (Behind the aftercooler)
QSL 9 Engine Crankshaft Position Sensor (Behind the aftercooler)

QSM 11

QSM 11 Engine Position Sensor
QSM 11 Engine Position Sensor
QSM 11 Engine Position Sensor
QSM 11 Engine Position Sensor