Sensors & Switches
Position sensor
Camshaft and crankshaft position sensors, and magnetic pickups, for electronically governed engines. Send the number off the old sensor along with the engine model.
What to send us
The number stamped on the old part is the quickest route. If it has worn off, the engine or genset model and serial number usually gets us there. Photos help more than descriptions.
We cross-check whatever you send against the OEM catalogue and confirm the match with you before anything ships.
About this range
This covers the pickups and position devices around the engine's speed and fuelling. A magnetic pickup reads the flywheel ring gear teeth and gives the controller or governor its speed signal. A position sensor on a fuel pump actuator tells the governor where the fuel rack actually is, so the loop can close.
Magnetic pickups fail quietly. The gap between the tip and the ring gear teeth is set by threading the pickup down onto a tooth and backing it off a defined amount, and a pickup that has vibrated loose, or one set too far out, gives an intermittent signal. That usually shows as a set that cranks and does not fire, or one that shuts down on overspeed or underspeed for no clear reason.
Send the number off the body, and the thread and length. Length matters more than it looks, because the tip has to sit at the right distance from the ring gear.
Products in this category
6 listed
Open one for its specification and the part numbers it covers. We stock more than we list, so send us the number even if yours isn’t here. You can also look a number up in the part number index.
Cummins crankshaft position sensor 4327230
- 4327230
Cummins camshaft position sensor 2872277
- 2872277
- 4921684
Cummins camshaft position sensor 4921686
- 4921686
Cummins camshaft position sensor 4921597
- 4921597
Cummins crankshaft position sensor 4921599
- 4921599
Cummins magnetic pickup 3815417
- 3815417
- 4085824
- 4962827
- +2 more
More in sensors & switches
5 of 5
Pressure sensor
18Oil and fuel pressure sensors and senders. Send the sensor's number and tell us which gauge or controller it feeds, since the output has to match what's reading it.
View parts
Water level sensor
3Coolant level sensors for engines and gensets. Send the number on the old sensor along with the engine model.
View parts
Level switch
1Level switches for coolant and fuel tanks. Tell us the tank it sits in and what the switch is wired into.
View parts
Electronic timer
3Electronic timers used in genset starting and changeover circuits. Send the timer's model number and the function it controls.
View parts
Temperature sensor
9Coolant and oil temperature sensors, senders and switches for diesel engines. Send the sensor's number and tell us what it feeds, since the output has to suit the gauge or controller reading it.
View parts