SKU: K301-370-1 Categories: ,

Product Description

Newstar A/C Pressure Switch S-20903

Our replacement parts undergo extensive testing in our state-of-the-art Quality Control Laboratory.

Design Attribute

HVAC system components are warranted for 12 months / 100,000 miles or 18 months from date of purchase.

Popular Applications

Kenworth C500, K100, T400 Models (1981-2007)
Kenworth C500, K100, T400, T450, T470, T500, T600, T600A, T600B, T602, T603, T660, T700, T800, T800B, T800H, T800W, W901 Models (1981-2008)
Kenworth T2000 Model (1998-2007)
Peterbilt 330, 357, 375, 377, 378, 379, 385 Models (1994-2010)


High Side Switch
Normally Closed
Fitting Connector: M10-1.25 Female Integral 2 Pin
Closes At: 330-370 PSI Opens At: 180-240 PSI


  • Weight: 0.8


A/C Pressure Switch

Truck Make

Kenworth, Peterbilt

Truck Model

C500, K100, T400, T450, T600, T600A, T600B, T660, T700, T800, T2000, 330, 357, 375, 377, 378, 379, 385

Replacement Kenworth:


Replacement Peterbilt:

18-03835 K301-370-1

Not Finding what you need? Or do you need more parts? We have many parts available that are not listed on our website. Look in our catalog below for anything else you might need. If you have a part number, hit ctrl + F on your keyboard while in the catalog and type in the number to expedite finding what you need.

Additional Information

Weight 1 lbs
Dimensions 5 × 5 × 2 in


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