Re: {Chrysler 300} 1962 Oil Pressure Switch

In my experience they tend to read on the low side. The pressure switch sits in the back, nearly the last place to see oil pressure and why they can be slow to respond.

I nearly had heart failure the first time I changed oil on the Ram 440 in my Savoy, it has a mechanical gauge that didn't budge when i expected it, and then the needle woke up.

-----Original Message-----
From: "John Grady" <jkg@xxxxxxxxxxxxxxxxx>
Sent: Monday, February 23, 2026 11:36am
To: "Matt Allyn" <allynentertainment@xxxxxxxxx>
Cc: "Club International Chrysler" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: Re: {Chrysler 300} 1962 Oil Pressure Switch

absolute real issue , the ones they sell you everywhere have wrong ohms .

I fought this big time on 57-58 , ( 59?) as they are totally diffetrnt too from 60 up

In the end, I realized have to use pulls off junk engines , No other answers .. imho desoto dodge plymouth ok from any engine in years you need

contact parts guys with junkyards 99% they are still good . If you pulled old one over minor “ not reading right” on scale might put put it back , not precise things

On Feb 22, 2026, at 2:12 PM, 'Matt Allyn' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:

Anyone have a lead on an NOS Oil Pressure Sending Unit Switch?
Original Part Number is 1972-241.

(Or one made pre-1990 even?)

Concerned my brand new one is not allowing the gauge to read accurately.

Thanks!

Matt Allyn

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