Skip to product information
A/C Thermostat Switch for Freightliner A22-23640-000 A46-3122-030 22-23640-000

A/C Thermostat Switch for Freightliner A22-23640-000 A46-3122-030 22-23640-000

SKU: ZZ3F09577
$108.99 In Stock
$108.99
Sale price  $108.99 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

A/C Thermostat Switch for Freightliner

This A/C thermostat switch for Freightliner monitors and regulates the air conditioning system temperature, engaging and disengaging the compressor to maintain cabin comfort and prevent evaporator freeze-up. It is designed as a direct replacement component referencing OEM cross numbers A22-23640-000, A46-3122-030, and 22-23640-000.

Overview

The A/C thermostat switch for Freightliner accurately senses evaporator coil temperature and cycles the A/C compressor clutch to maintain a consistent, frost-free cabin climate. This A/C thermostat switch is built for heavy-duty truck HVAC systems, providing reliable temperature control for Freightliner commercial vehicles. It serves as a cost-effective replacement for a failed factory unit in the auxiliary climate control circuit.

Built For Performance

  • Precision calibration for tight temperature differential response
  • Corrosion-resistant housing protects against moisture and road salts
  • Direct-fit electrical connector for plug-and-play installation
  • Sealed capillary sensor for accurate evaporator temperature reading
  • Rugged construction withstands vibration and thermal cycling

Fits These Machines

  • for Freightliner models with A22-23640-000 or A46-3122-030 A/C control systems

On-The-Job Use

  • In long-haul sleeper trucks to keep the cabin cool during rest periods
  • In day cab freightliners operating in hot climates with continuous A/C demand
  • In fleet service vehicles where compressor cycling prevents evaporator icing

Specs At A Glance

Part Number(s) A22-23640-000, A46-3122-030, 22-23640-000
Type A/C Thermostat Switch
Voltage 12V / 24V system compatible

Good To Know

Q: How does this thermostat switch interact with the A/C compressor? A: It senses the evaporator coil temperature and opens or closes the electrical circuit to the compressor clutch, preventing the coil from freezing and providing efficient cooling.

Q: Is this switch a genuine Freightliner part? A: No, this is a replacement component designed to meet or exceed OEM specifications, but it is not an original Freightliner item.

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