HVAC Switch Part Number Needed for 1970 300

[fins2fuselage]

My 1970 Chrysler 300 currently has the incorrect HVAC switch because (years ago) I could not find the correct one when the "sliders" inside the old switch fell apart; now I have misplaced the original part number.

My car has "standard" 5-button heat and air system, NOT the complex "automatic climate control" system. I need to know the original part number so that I can try to locate a good (preferably NOS) switch. An online source to help me find original part numbers in general would be welcome as well.

Thanks.

Jeff

 

[Lefty71]

Maybe here?
jholst.net Chrysler 300K Home Page

 

[fins2fuselage]

Wow, thanks Lefty!

Jeff

 

[Trace 300 Hurst]

NOS MOPAR 1968-71 ALL MODELS A/C-HEATER VACUUM SWITCH | eBay

 

[fins2fuselage]

NOS MOPAR 1968-71 ALL MODELS A/C-HEATER VACUUM SWITCH | eBay

Thanks, Trace, but it doesn't seem to mention "1970 Chrysler 300" anywhere in the listing, only Newport. Yes, I realize that shouldn't make a difference . . . but based on my own experience with these switches over 26 years of owning this car, there was never a switch I tried in it that would work correctly other than the original part number. So I'm inclined to defer to the eBayer's list.

Jeff

 

[fins2fuselage]

Lefty,

Okay: I have found the code number (1-48-770) for the switch on Page 8-70 . . . but I can find no page breaking 1-48-770 down into part numbers for the various applications (heater only, heat/air, auto. temp. control). There is, ironically, a page that shows part numbers and which group they belong in. . . but not the other way around. It seems as if that manual might be incomplete? What am I missing?

Jeff

 

[Lefty71]

It seems as if that manual might be incomplete? What am I missing?

Maybe so. There's a lot of info to process there. If no one else here has the proper answer for you, maybe this guy does ($$);

Heater and A/C Blower Motor - Air Conditioning - Heater and A/C Components - Parts
815-223-8424

HTH, Lefty71

 

[fins2fuselage]

Thanks, Lefty . . . but I would probably live with the incorrect switch that I have (or figure out how to "build one from scratch"!) before I would do that.

Jeff

 

[Davea Lux]

My 1970 Chrysler 300 currently has the incorrect HVAC switch because (years ago) I could not find the correct one when the "sliders" inside the old switch fell apart; now I have misplaced the original part number.

My car has "standard" 5-button heat and air system, NOT the complex "automatic climate control" system. I need to know the original part number so that I can try to locate a good (preferably NOS) switch. An online source to help me find original part numbers in general would be welcome as well.

Thanks.

Jeff

Part Number from Section 24-6 of the 70-71 parts book appears to be #3431270

Dave

 

[Lefty71]

Thanks, Lefty . . . but I would probably live with the incorrect switch that I have (or figure out how to "build one from scratch"!) before I would do that.

Jeff

LOL, I just meant call the guy to get the proper part number info. Funny you should say tho, because I distinctly remember my dad tearing into the one on our '71 New Yorker in about 1975, because he wasn'nt about to buy one way back then. I'm sure they cost pennies on the dollar then too! He pulled off a repair without replacing, so no reason you can't do it.

 

[Big_John]

How To Rebuild a Vacuum Heater Control Switch

 

[fins2fuselage]

LOL, I just meant call the guy to get the proper part number info. Funny you should say tho, because I distinctly remember my dad tearing into the one on our '71 New Yorker in about 1975, because he wasn'nt about to buy one way back then. I'm sure they cost pennies on the dollar then too! He pulled off a repair without replacing, so no reason you can't do it.

Lefty,
I already did the take-it-apart -- clean-it -- reassemble-with-#4-screws thing with it years ago; the last time I took it apart the sliders were falling apart. I didn't know about making them out of Textolite (per Big_John) at that time so I may have thrown the old switch away . . . but I'll look for it.

Jeff

 

[fins2fuselage]

How To Rebuild a Vacuum Heater Control Switch

Thanks. Big_John!

Jeff

 

[fins2fuselage]

Part Number from Section 24-6 of the 70-71 parts book appears to be #3431270

Dave

Thanks, Dave! Does that parts book happen to be online? Or send-able as a document?

Jeff

 

[Davea Lux]

Thanks, Dave! Does that parts book happen to be online? Or send-able as a document?

Jeff

www.mymopar.com has the 70-71 parts book in the tools/reference section.

Attached is the parts book page. Click on mail 007 not the icon.

Dave

 

[fins2fuselage]

www.mymopar.com has the 70-71 parts book in the tools/reference section.

Attached is the parts book page. Click on mail 007 not the icon.

Dave

Thanks, Dave!

 

[marty mopar]

2587564,2820487,3895033,2571501,2096084 = 5 pushbutton A/C switch 1960-75

I have some aftermarket new for 75.00

 

[fins2fuselage]

I did find my original #3431020 switch; now I just need to find time to work on it.