Four Seasons 36675 System Mounted Cycling Pressure Switch

I installed the switch on the accumulator/dryer in my 1990 GMC Suburban with no problems. When switching to R134a, this switch is needed to ensure the correct cycling psi is maintained. My factory wire harness is different from the Four Seasons 37227 Harness Connector, so I bought one to replace it. The decision regarding whether to cut the solder shrink or just leave it plugged in with terminals has not yet been made. I really like how it works!.

Scott Lam

| May 23, 2021

It was not necessary to have this switch, but I chose to make use of it since I have converted my R12 system on my chevy R3500 dually I really like it. Wiring this in is an easy task, just be sure you have the 37227 pigtail.

Tate McIntosh

| Nov 11, 2020

This was used on my 90 Chevy pickup when it was converted to R-style The 134A number.

Shelby Small

| Jan 25, 2021

Exactly what it is intended to do.

Amir Bowen

| Sep 11, 2020

I would like to thank you for this!.

Tate Richard

| May 29, 2021