Can anyone tell me what difference is between the two oiler coolers that are listed in the parts catalog for 914-6? My experience has been when multiple parts are listed, one superseded the other and are the same form, fit, function. What is throwing me off is quite a wide difference in price on these. Roughly $500 delta for the places that offer both (e.g. Pelican, Porsche Atlanta Perimeter, Auto Atlanta, etc.)

• 90110705901
• 90110705903

Thanks.

I don’t know.

I only see the -01 part in PET in the older PET I downloaded a year or two ago.

Click to view attachment

But when I downloaded PET today online -- Like you, I now see the -03 part.

Only thing I can say for sure is that the 914/6 cooler is different than the 911 cooler but I know that's not very helpful to know what the -03 part is.

Based on my experience with Porsche and their changes to Porsche made to PET with the 914/4 CV joints . . . is that Porsche can't be trusted to know which parts fit their own vintage cars.

If I had to guess on price difference, it would be that the price has been upped for the -03 part and that the dealers are trying to clear out "obsolete" inventory

Close. Here is the reply I got from Sunset:

The available part number is of course $370 more.

Kind of on the same lines, but not regarding price, is there a way to use the early style threaded oil cooler on a later style engine and use a right angle AN fitting?

I would just have Ben weld on whatever fitting you want. No leaks. The later cooler has a larger tube.

Please inform us how to access the discount you received at delaware porsche parts. thanks!

I just bought a couple coolers to use as cores for exchange.

DelawarePorscheParts.com

Double check whatever you do get--the outlet on the 914-6 cooler points in a different direction than on a 911 cooler to clear the suspension console.

We have seen instances in the past where Porsche superceded a part to a different part that did not fit correctly or work correctly. My guess was that they ran out of the earlier part and called the replacement part "good enough" without actually trying to use it.

This sounds like it might be the same thing.

Maybe ask for a picture before you buy it?

--DD

That sounds like an excellent suggestion. Can you share a photo of the correct cooler? Thanks.

http://www.914world.com/bbs2/index.php?sho...1&hl=cooler

The 911 cooler has the outlet come straight out of the cooler instead of bending as shown in the "Parts Vault" post above.

See here for (an aftermarket) 911 cooler:
https://www.fvd.net/us-en/91110704102/engin...30-1972-89.html

--DD

NOS

Click to view attachment

Just to be clear; the "911 style" oil cooler with the straight push-on fitting will not clear the suspension in a 914? (Picture below)

Click to view attachment

If that's the case, is it possible to have a skilled welder (*cough* @MB911 ) modify the stock 911 oil cooler to fit a 914? Or should I start shopping for a replacement cooler? The CFS #8260 looks like its made for a 914/6 conversion:

https://y7y6i2a9.rocketcdn.me/wp-content/up...-8260-Flyer.pdf

You betcha it’s on my website. I do them all the time@$150

I think Dave is probably right.

Just by accident I saw on my email from Sierra Madre Collection that
P/N: 901.107.041.03 is "Oil Cooler, 911 (65-71)" and shows a pic with the straight
outlet.

Unless it has to be original, Ben/MB911 is the go-to guy for the oil cooler mod.

Just make sure you pressure test the cooler before modding it. If it’s leaking, it’s done.

recently saw in Pano these new ones being made from a company called CSF...the 914-6 model has the correct curved outlet....

https://csfrace.com/world-exclusive-csf-por...ne-oil-coolers/

Usually, CSF stuff is better than most aftermarket available.

I like installing decent stuff!

different manufacture.. different last 2 digtis

So here is the problem IMHO with OEM 914-6 coolers. It requires you to either adapt from 30mm to whatever line your using or use OEM lines which on a conversion would be silly as the adapter is $50 to got to AN or factory lines which comes in a set of 3 that you only typically use the 2 tank to cooler lines and don’t use the 3rd line that connects to the scavenge line which is very difficult to find and does you no good if you doing a front cooler.

Basically my suggestion on a conversion is to convert a good known cooler, use AN lines much cheaper and fit better for most applications

For that exact reason I'm sending my oil cooler off today to Pacific Oil Cooler Service INC in La Verne, CA for a cleaning/pressure test then send it off to you for the modification to add the AN fitting.

I'll spend $250 for cleaning/testing, then another $150 for the modification. Assuming $50 or so in shipping, still will cost less than half of a new $1000 914-6 OEM style cooler with a $50 AN adapter.

After researching here in the forums, it sounds like Pacific Oil Cooler Service is the go-to shop for testing/cleaning of these coolers. I talked to Wayne there yesterday, sounds like he services 911 coolers frequently.

https://www.oilcoolers.com/

Be careful I sent them an almost new one from @mepstein and they told me it was no good. I should have had them send it back but ended up buying a new 911 one from Porsche and modifying for my car.

Good to know. Is there another reputable oil cooler cleaning/test shop? I thought there was one in central California but google isnt coming up with any hits...

Pacific oil cooler has been a go-to for ages.

https://www.oilcoolers.com/

Not sure. I am thinking it was a fluke

I have modified the later style 911 oil cooler with an aluminum 90* fitting that is-12AN and 3/4 NPT. You cut off the tube flush with the end of the cooler and tap it with a 3/4 NPT tap. The tricky part is you want to have it thread in all the way and point forward and about 4* down. Then you are good to go with-12 hoses and fittings.

Why not just shorten the tube and put a straight fitting on it, then use a 90 degree bend to connect it to the hose?

In short, a tight 90 degree angle restricts flow.


The curved design of the stock cooler is superior:

Don't want derail the thread on the original issue of the 01 vs 03 cooler (which I have also unsuccessfully tried to find an answer on in the past). But has anybody tried the csf cooler? I keep seeing them advertised and with what they're claiming it would be my first choice, but would like to hear some real world feedback before purchasing.

I may not have explained my idea clearly. Usw a short tube and a fitting like the one below in the appropriate size

Click to view attachment

This is what I suggest personally Click to view attachment

What is the grey material on the aluminum tube that appears to be bonding the threaded hex section to the tube?

So I TIG weld the fitting on and use an industrial epoxy around that area to ensure there is never a leak

If you are using AN fittings you can get ones with separate ports to use as a drain so you don't have to undo the lines.

Example.

Click to view attachment

john

If/when doing this again, I would definitely go with the CSF

Targa72e. Nice find on that fitting. Made my own with drill and tap Works great but this premade one is trick.