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SKU:
ZZ3F02243
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Voltage Regulator Fit for Thermo King SL-400e SR2 SLXi-200 Spectrum SMX 44-9143
$41.79
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$41.79
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$41.79
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Compatible Models
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Compatible equipment / model
Voltage Regulator for Thermo King
This voltage regulator, cross-referenced as 44-9143, maintains steady electrical output in Thermo King SL-400e, SR2, SLXi-200, Spectrum, and SMX refrigeration units. Designed as a replacement for the original Kompensator, it ensures reliable alternator charging and protects onboard electronics.
Overview
This voltage regulator for Thermo King SL-400e, SR2, SLXi-200, Spectrum, and SMX models regulates the alternator's voltage to keep batteries charged and systems running smoothly. It is a direct replacement for OEM part 44-9143, built to match the electrical specifications of Thermo King's advanced transport refrigeration units. The regulator helps extend component life by preventing overvoltage conditions.
Built For Performance
- Replacement for OEM part number 44-9143
- Precision voltage regulation for stable alternator output
- Sealed housing protects against moisture and dust ingress
- High-temperature rated components for engine-bay environments
- Simple two-wire connection for quick swap
Fits These Machines
- for Thermo King SL-400e
- for Thermo King SR2
- for Thermo King SLXi-200
- for Thermo King Spectrum
- for Thermo King SMX
On-The-Job Use
- Used in truck and trailer refrigeration units during alternator rebuilds
- Installed in reefer fleets to restore charging system integrity
- Replaces worn regulators in Thermo King units showing voltage fluctuations
- Works in stationary and mobile cold chain applications
Specs At A Glance
| Part Number(s) | 44-9143 |
| Type | Voltage Regulator |
| Compatible Brands | for Thermo King |
Good To Know
Q: What are the symptoms of a failing voltage regulator? A: You may notice battery drain, dim or flickering lights, or the unit failing to start. A multimeter test showing output voltage outside the 13.5–14.5V range indicates a faulty regulator.
Q: Can I install this without special tools? A: Yes, basic hand tools and disconnecting the battery first are sufficient. Ensure the alternator is cool and the harness connector is free of corrosion before connecting.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.