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SKU:
ZZ3F07311
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12V Regulator Alternator 41-8851 Fit Thermo King SB-III 640 TC met di2'2 Engine
$79.19
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$79.19
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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
12V Regulator Alternator for Thermo King SB-III 640 TC
This 12V regulator alternator is a charging component engineered to match the mounting and electrical requirements of the Thermo King SB-III 640 TC refrigeration unit. It provides regulated 12-volt output to keep batteries charged and systems running.
Overview
This 12V regulator alternator functions as a combined charging and voltage regulation unit for the Thermo King SB-III 640 TC. It is built to handle the electrical demands of transport refrigeration equipment, replacing a worn or failed original unit. The design references the original part number 41-8851 for compatibility.
Built For Performance
- 12V output with integral regulator for stable charging
- Engineered for Thermo King SB-III 640 TC mounting specifications
- Matches OEM cross-reference number 41-8851
- Compact design fits within the existing alternator bay
- Heavy-duty bearings and windings for continuous use
Fits These Machines
- for Thermo King SB-III 640 TC
- for Thermo King units using part number 41-8851
On-The-Job Use
- Maintains battery charge on a Thermo King SB-III 640 TC during long-haul refrigeration cycles
- Replaces a failing alternator to restore reliable cold-chain operation
- Supports electrical loads for controls and fans on transport refrigeration units
Specs At A Glance
| Voltage | 12V |
| Part Number(s) | 41-8851 |
Good To Know
Q: Is this a genuine Thermo King part? A: This is an aftermarket replacement designed for Thermo King SB-III 640 TC units, not an original Thermo King product. It references OEM number 41-8851 for fitment.
Q: Can this alternator be used on other Thermo King models? A: It may fit other units that share the same mounting and electrical configuration, but confirm your model and serial number before purchase.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.