Skip to product information
12V Regulator Alternator 41-8851 Fit Thermo King SPECTRUM DE 2 & 3 Super-II H.TP

12V Regulator Alternator 41-8851 Fit Thermo King SPECTRUM DE 2 & 3 Super-II H.TP

SKU: ZZ3F07316
$79.19 In Stock
$79.19
Sale price  $79.19 Regular price 
Same day shipping if ordered by 4PM CST.
Part Number(s)
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

This 12V regulator alternator is a direct replacement component engineered for Thermo King refrigeration units, providing reliable charging to keep your system running. The regulator alternator for Thermo King models manages voltage output to protect the battery and electrical system during operation. This 12V regulator alternator is built to restore dependable performance in demanding transport refrigeration applications.

Overview

This 12V regulator alternator is a charging system component for Thermo King units, delivering a steady electrical supply to power the refrigeration controls and blower motors. It replaces a worn or failed alternator to return the unit to full working condition. This regulator alternator for Thermo King ensures your equipment stays operational with minimal downtime.

Built For Performance

  • 12-volt output designed for standard Thermo King electrical systems
  • Replaces OEM cross-reference number 41-8851 for a precise fit
  • Durable construction withstands vibration and temperature extremes
  • Regulates voltage to protect sensitive electronic components
  • Direct-fit design simplifies installation

Fits These Machines

  • for Thermo King SPECTRUM DE 2
  • for Thermo King SPECTRUM DE 3
  • for Thermo King Super-II
  • for Thermo King Super-II H.TP

On-The-Job Use

  • Provides charging power in reefer units on trailers and trucks
  • Maintains electrical supply for temperature control in transit
  • Supports continuous operation during long-haul deliveries

Specs At A Glance

Part Number(s) 41-8851
Voltage 12V
Type Regulator Alternator

Good To Know

Q: Will this alternator work with my Thermo King unit? A: This 12V regulator alternator is designed for Thermo King SPECTRUM DE 2, SPECTRUM DE 3, and Super-II models, using cross-reference 41-8851. It is advisable to verify your unit's serial number to ensure compatibility.

Q: What does a regulator alternator do in a refrigeration unit? A: It generates and regulates electrical power to run the refrigeration system's controls and fans, ensuring consistent operation. A failing alternator will stop the unit from functioning.

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