Skip to product information
12V Regulator Alternator 41-8851 Fit Thermo King SB-III Whisper Performance

12V Regulator Alternator 41-8851 Fit Thermo King SB-III Whisper Performance

SKU: ZZ3F07336
$79.19 In Stock
$79.19
Sale price  $79.19 Regular price 
Same day shipping if ordered by 4PM CST.
Voltage
Estimated delivery between
Industrial Retailer parts support representative

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

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 Whisper Performance

This 12V regulator alternator is a direct replacement charging component designed for Thermo King SB-III Whisper Performance units, referencing OEM cross-reference number 41-8851.

Overview

This 12V regulator alternator maintains battery charge and stable electrical output for Thermo King SB-III Whisper Performance refrigeration systems. It is built to keep the unit's electrical system running reliably during continuous operation. The 41-8851 regulator alternator is a key replacement part for keeping your Thermo King unit operational.

Built For Performance

  • Regulates 12V output to protect the battery and electrical components
  • Direct replacement style for the original 41-8851 part number
  • Engineered for the demanding continuous duty of transport refrigeration
  • Robust construction to withstand vibration and temperature extremes
  • Ensures consistent charging for reliable system performance

Fits These Machines

  • for Thermo King SB-III Whisper Performance

On-The-Job Use

  • Maintains electrical power during long haul refrigerated transport
  • Suitable for replacement during routine maintenance intervals
  • Keeps the Thermo King unit's control systems and starter battery charged

Specs At A Glance

Voltage 12V
Part Number(s) 41-8851

Good To Know

Q: Is this regulator alternator a direct replacement for the original part? A: Yes, it is designed as a drop-in replacement for the 41-8851 regulator alternator. Always confirm your unit's serial number to ensure exact compatibility.

Q: What is the main function of this part? A: This alternator regulates charging output to keep the battery at the proper voltage. It ensures the Thermo King unit has a reliable electrical supply for starting and controls.

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

Customers also purchased