12 Voltage Regulator 41-1740 Fit for Thermo King MD-II TLE SR MAX MD-MT MD-300

12 Voltage Regulator for Thermo King

This 12 voltage regulator, referenced as 41-1740, manages charging output to maintain stable electrical system performance for Thermo King refrigeration units.

Overview

This 12 voltage regulator 41-1740 is a direct replacement component designed to control voltage output in Thermo King MD-II, TLE, SR, MAX, MD-MT, and MD-300 units. It ensures consistent power delivery to protect the alternator and battery system. This regulator is built for reliable daily performance in transport refrigeration applications.

Built For Performance

• 12-volt nominal output suited for Thermo King heavy-duty transport systems
• OEM cross-reference number 41-1740 for easy identification
• Solid-state regulation for stable voltage under varying engine speeds
• Designed to withstand vibration and temperature extremes in over-the-road use
• Direct-fit form factor for compatible Thermo King alternators

Fits These Machines

• for Thermo King MD-II
• for Thermo King TLE
• for Thermo King SR
• for Thermo King MAX
• for Thermo King MD-MT
• for Thermo King MD-300

On-The-Job Use

• Replaces a failed regulator in reefer unit alternators during routine service
• Used in fleet maintenance shops to restore charging system output
• Supports long-haul refrigeration operation by maintaining battery charge
• Installed during alternator rebuilds for Thermo King units

Specs At A Glance

Good To Know

Q: How do I know this regulator fits my Thermo King unit?A: Verify your unit model and alternator part number against the 41-1740 reference. Serial number variations can affect fitment, so confirm before installing.

Q: What happens if I use a regulator with the wrong voltage rating?A: A mismatched voltage regulator can overcharge or undercharge the battery, leading to electrical damage or poor performance. Always use a 12V regulator for 12V systems.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.