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SKU:
NLT2T04756
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Coolant Temperature Sensor for Cummins KTA19GC & QSK19, 1/2" NPT – SD4043 / 3015238
$28.59
In Stock
$28.59
Sale price
$28.59
Regular price
This coolant temperature sensor is made for Cummins KTA19GC and QSK19 engine applications using the SD4043 / 3015238 reference and a 1/2-inch NPT mounting thread.
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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 |
|---|---|
| Engine family | Cummins KTA19GC; Cummins QSK19 |
| Application | Engine coolant temperature monitoring |
Product Overview
The sensor threads into the engine cooling circuit and provides the temperature signal used by the gauge, alarm, or control system. A failed sender can show up as an incorrect or dead temperature reading, intermittent indication, or a temperature warning that does not agree with actual engine condition.
For generator, industrial, and heavy-engine service, the thread size and electrical connection are just as important as the engine family. This unit is identified by SD4043 and 3015238 and uses a 1/2-inch NPT threaded body, making those details useful checks before installation.
Key Features & Performance
- 1/2-inch NPT threaded temperature-sensing body
- Reference numbers SD4043 and 3015238 for application matching
- Intended for coolant-temperature monitoring on supported Cummins KTA19GC and QSK19 installations
- Useful replacement when the existing sender produces an erratic, missing, or implausible temperature signal
Specifications & Reference Numbers
- Reference numbers: SD4043; 3015238
- Thread: 1/2 in. NPT
- Component: Coolant / water temperature sensor
Before You Order
Compare the old sender number, 1/2-inch NPT thread, terminal arrangement, and engine application before ordering. Cummins K19/QSK19 installations can use different senders depending on the gauge or control package.
Frequently Asked Questions
Q: What does this sensor do?
A: It senses coolant temperature and supplies the corresponding signal to the machine or engine monitoring circuit.
Q: Should I order by engine model alone?
A: No. Match SD4043 / 3015238, the 1/2-inch NPT thread, and the electrical connection to the sensor being replaced.