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SKU:
NLT1G00248
Ships for free in 2–4 business days.
Thermo King RPM Sensor 44-9298 449298
$37.99
In Stock
$37.99
Sale price
$37.99
Regular price
This new aftermarket engine RPM sensor replaces Thermo King 44-9298, 449298, and 449-298 for compatible SB, SL, SLX, SLXi, T-Series, and Precedent refrigeration units.
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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
- Thermo King SLXi 100, 200, 300, 400, Spectrum and -50 variants
- Thermo King SB 100, 110, 130, 190, 200, 210, 230, 300, 310, 330 and 400 families
- Thermo King T-Series 580, 600R, 680R/S, 800R, 880R/S, 890, 1000R, 1080R/S, 1090 and 1200R
- Thermo King SL / SLX / SLXe 100-400 and Spectrum families
- Thermo King Precedent C-600, S-610, S-700 and selected related units using 44-9298
Product Overview
An RPM alarm, unexpected shutdown, failed start sequence, or display that shows no engine speed can lead to this sensor after wiring, air gap, target condition, controller input, and cranking speed are checked.
The sensor reads engine rotational speed so the controller can manage starting, running, and protection logic. It cannot repair a damaged reluctor, loose connector, low battery, starter fault, or controller failure.
Match 44-9298, connector, cable length, threaded body or mounting style, required air gap, unit model, engine, and serial number. The broad model list contains many production variations.
Key Features & Performance
- Speed pickup for compatible Thermo King engine controls
- Matching lead and connector for listed references
- Supports start confirmation and overspeed protection logic
- Replacement after a verified open, short, or weak signal
Replaces Part Numbers
- 44-9298
- 449298
- 449-298
Common Uses
- Correcting a no-RPM controller reading
- Repairing an intermittent shutdown from lost speed signal
- Replacing a sensor damaged at the pickup tip
Technical Specifications
- Product Type: Engine RPM / speed sensor
- Control System: Thermo King transport refrigeration
- Primary Reference: 44-9298
- Condition: New aftermarket replacement
Installation & Fitment
- Shut down and lock out the refrigeration unit
- Inspect the target and wiring before removing the sensor
- Compare sensor length and connector
- Set the air gap to the service specification
- Clear alarms and verify stable RPM through start and run
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Can a bad RPM sensor prevent starting? A: Yes. Some controllers will stop the start sequence when speed feedback is missing.
Q: Will it fit every Thermo King SB unit? A: No. Verify model, serial number, engine, connector, sensor style, and 44-9298.
Q: Can I install it against the target? A: No. Use the specified air gap to prevent damage and obtain a reliable signal.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: Thermo King 44-9298 RPM sensor, 449298 reefer speed pickup, SLXi no RPM alarm repair, SB210 engine speed sensor, Thermo King starts then shuts down
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.