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SKU:
NLT2T03156
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Magnetic Pickup Speed Sensor for Cummins K19 K38 M11 QSK19 QSK38 NT855 – 3034572
$36.89
In Stock
$36.89
Sale price
$36.89
Regular price
This magnetic pickup speed sensor replaces Cummins 3034572 and is used on supported K19, K38, M11, QSK19, QSK38, NT855 and related engine-control applications.
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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
| Application | Models / Details |
|---|---|
| Cummins engines | K19, K38, K50, M11, N14, NH/NT855, QSK19, QSK38, QSNT14, V28 on compatible control systems |
Product Overview
The magnetic pickup reads passing flywheel/ring-gear teeth and generates an AC frequency signal proportional to engine speed. Governors and control modules use that signal for RPM indication, speed control and protection. Excessive air gap, damaged wiring, metal debris on the tip or an open sensor winding can cause loss of RPM signal or unstable governing.
Cummins service data cross-references 3034572 with 3251812 and publishes detailed setup values for this pickup family. The 5/8-18 UNF-2A thread distinguishes it from larger 3/4-16 pickup sensors used in other governor systems.
Key Features & Performance
- Passive magnetic speed pickup for engine flywheel/gear-tooth sensing
- Cummins reference 3034572; cross-reference 3251812
- 5/8-18 UNF-2A threaded body
- Supported engine families include K19, K38, K50, M11, N14, NT855, QSK19, QSK38, QSNT14 and V28 where this sensor is specified
Specifications & Reference Numbers
- Part number: 3034572
- Cross-reference: 3251812
- Thread: 5/8-18 UNF-2A
- Signal type: Passive AC magnetic pickup
- Published frequency range: 50–5000 Hz
- Published air-gap range: Approx. 0.028–0.042 in. where applicable to the Cummins procedure
Before You Order
Set the pickup gap according to the engine/control manual. Do not bottom the sensor against the flywheel teeth. Inspect harness shielding/connections if the RPM signal remains unstable after replacement.
Frequently Asked Questions
Q: Does this sensor need external power?
A: No. A passive magnetic pickup generates AC voltage as ferrous gear teeth pass the tip.
Q: Why is air gap important?
A: Too large a gap weakens the signal; contact with the gear can physically damage the sensor. Cummins publishes an installation gap for this pickup family.