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SKU:
NLT2T03158
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Cummins Magnetic Pickup Speed Sensor 3034572 – 5/8-18 MPU for Engine/Genset RPM
$36.89
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$36.89
Sale price
$36.89
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Cummins 3034572 is a magnetic pickup (MPU) speed sensor used to read flywheel/ring-gear tooth passage for engine and generator speed control or monitoring.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
| Make / Family | Applications |
|---|---|
| Cummins engine/generator systems | Applications that specify magnetic pickup 3034572 |
Product Overview
The magnetic pickup generates an AC signal as gear teeth pass the sensor tip. A weak signal, damaged wiring or incorrect air gap can cause unstable RPM readings, governor hunting, overspeed/underspeed faults or a controller that does not recognize cranking speed.
Cummins documentation identifies 3034572 as a magnetic pickup, and published sensor data lists a 5/8-18 UNF thread with an approximate 0.028–0.042 inch working gap. Correct installation depth matters: the sensor should be set to the equipment manufacturer’s procedure rather than forced against the ring gear.
Key Features & Performance
- Non-contact magnetic RPM sensing from gear teeth
- 5/8-18 UNF threaded body
- Designed for engine/genset speed-monitoring circuits
Technical Details
- Thread: 5/8-18 UNF-2A
- Typical operating frequency range: 50–5000 Hz
- Typical gear-tooth gap: 0.028–0.042 in
- Published cranking output: 1.5 VAC minimum
- Published coil resistance: up to 300 ohms
Replaces Part Numbers
- 3034572
Frequently Asked Questions
Q: Can the sensor tip touch the flywheel teeth?
A: No. It requires a controlled air gap. Follow the engine/genset setup procedure for adjustment.
Q: What can mimic a failed MPU?
A: Incorrect air gap, damaged shielded wiring, loose connectors and controller input faults can all cause weak or missing speed signals.
Set the sensor gap according to the equipment service procedure after installation.