Radiator cap for 19" Dodge radiator (1970 Polara, 318)?

ayilar

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Looks like my cap needs replacing. Searched the board and online, can't find an OEM or NOS one. Suggestions for where to look?
 
I'm pretty sure this is the cap you need.

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Alan
 
Thank you. But, where do I find one that is made properly (i.e. does not only look good but works as it should)?
 
Took me less than 2 minutes to Google Stant and go to their online catalog, look up your application, and find it.
:rolleyes:

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One More Time!
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Guys, appreciate all the references. Bear with me: I did not think that I was being lazy. FWIW, I did research prior to posting. I did find a bunch of those places before I posted. What I ought to have said is that I got my car 10 days ago, have not owned any prior Mopar, and do not know which vendor sells caps that would be the same as the original AND would seal properly AND would last. That’s the info I was looking for. I trust that all the links kindly posted above are from quality folks?
 
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Unless your one of the really anal Mopar folks that has to have the right/correct cap and willing to spend $1000 for one, because it HAS to be correct. Any 16 lb. cap from the parts store that fits will work. Good Luck
 
Guys, appreciate all the references. Bear with me: I did not think that I was being lazy. FWIW, I did research prior to posting. I did find a bunch of those places before I posted. What I ought to have said is that I got my car 10 days ago, have not owned any prior Mopar, and do not know which vendor sells caps that would be the same as the original AND would seal properly AND would last. That’s the info I was looking for. I trust that all the links kindly posted above are from quality folks?

In a nut shell... Generally speaking, there aren't a lot of manufacturers making Mopar reproduction stuff. There are a lot of vendors though and they all sell the same piece made in the same factory etc. When you understand that, you really just look at price and delivery.

I personally like dealing with a few different vendors. Of the ones listed, Bill Rolik always has nice stuff and he's a nice guy. I buy stuff from Dante's, Detroit Muscle Technologies, Van's (via eBay for the cheapest shipping) along with a few others. I can't say enough good about Detroit Muscle Technologies.

Year One has a lot of stuff, but not cheap... and they kill you on shipping. I've bought stuff from Retro-Motive (again eBay) and been happy too.. In fact, that's who I would use of the ones listed... mostly because I'm cheap and they have the best deal with shipping.

Beware of NOS... Some stuff is great, but I've also opened "NOS" stuff and I know that it wasn't new.. Maybe the box is, but the part that was in the box got bolted on a car years ago and the old part got stuffed in the box. Dealer mechanics tried parts, especially electrical parts, to solve issues on new cars. The old parts or the "try out" parts went back on the shelf.
 
In a nut shell (...) you really just look at price and delivery.

I personally like dealing with a few different vendors. (...)

Beware of NOS... Some stuff is great, but I've also opened "NOS" stuff and I know that it wasn't new.. (...) Dealer mechanics tried parts, especially electrical parts, to solve issues on new cars. The old parts or the "try out" parts went back on the shelf.

Super helpful. Thank you for all the suggestions and warnings!
 
Keep in mind that a cap is a safety-release valve, and the pressure rating on a cap is to adjust (somewhat) the boiling point of the coolant.
The higher the pressure rating, the higher the boiling point.
Most cooling-system components are easily replaced - hoses, water pump, radiator. but what about the heater core???

For me, with heater cores not being on my 'automatically replace it' list, I prefer a lower pressure rating to reduce stress on it.
But it depends on your climate and driving conditions for what you need to prevent a boilover.

Food for thought.
And welcome to Mopars!!!
 
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