44-9143 Alternator Regulator for Thermo King SMX SL SLe | 12V/24V Voltage Regulator
MultiStar Parts – Your Source for Truck Refrigeration Unit Parts
The 44-9143 voltage regulator (also referenced as 20-44-9143) is a premium Thermo King parts replacement designed for Bosch-style alternators in SMX, SL, and SLe series transport refrigeration units. This 12V/24V regulator ensures stable voltage output to prevent overcharging or undercharging, protecting the electrical system and ensuring proper battery performance
CROSS-REFERENCE PART NUMBERS:
- 44-9143, 449143, 449-143
- 160-84103, 160-84104, 160-84105, 160-84106, A-6250, A-6252, A-6380, A-6381, 9190067018
Product Highlights:
- Part Number: 44-9143, 449143, 20-44-9143
- Voltage: 12V/24V compatible
- Function: Regulates alternator voltage output
- Compatible Models: Thermo King SMX, SL, SLe series, including SL-200E (2002-2012), SB-200, and other Bosch-style alternator applications
- Cross Reference Numbers: 44-9143, 41-8855, 41-1740, 9190067018, 230-24031
As part of our extensive inventory of premium Thermo King aftermarket parts, this essential component is ideal for alternator repair or electrical system maintenance on your SMX, SL, or SLe series refrigeration units.
Multistar Parts Co., Ltd. is a professional supplier of transport refrigeration parts, specializing in Thermo King parts, Carrier Transicold parts, and Hwasung Thermo parts for the global aftermarket.
Multistar Parts Co., Ltd. – Your trusted partner for Thermo King, Carrier Transicold, and Hwasung Thermo parts.




