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Discussion Starter · #1 ·
I've done quite a bit of work to my truck as seen to try get my truck to run cooler now I'm interested in getting a larger oil cooler if possible. Has anyone put on on and noticed a difference it cooler engine coolant temps
 

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Larger? No.

You'd have to look into adding an aux oil cooler. Sandwich adapter, coil, hose...not too bad in $$. But those al fittings shoot up the cost. IIRC, when I priced out the parts years ago, $750-ish comes to mind.

And then there's the debate of running -10an vs -12an. Dmax volume needs fall into the -12 area, but the sandwich adapter is only -10.
However, if you port out the I.D. to match the -12, it works.

Thinner wall, yes. But it's fine to support the low oil psi of the Dmax, and lack of flow volume won't be a concern.
 

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Here is some good info for ya on the oil coolers.
01-16 cooler is 10 plates, 17-19 is 14 plates, 2020 cooler is 20 plates and not a super costly upgrade

Sent from my VS988 using Tapatalk
 

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04.5 Chevrolet 2500hd Ccsb
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Discussion Starter · #5 ·
Thanks guys for the info I'll go from here on the info and update when it happens and if it helps when towing I appreciate it
 

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I think I'll be doing this on my LMM before summer. The last few years I've been having low oil pressure warnings when it's in the 90's and I come to a stop. I cleaned the stack last summer and that helped a bit. Doubling the oil cooler capacity ought to help more. For $173 it's worth a try.
 

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Where are you guys finding the part numbers for the 2020 oil cooler??
 

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Where are you guys finding the part numbers for the 2020 oil cooler??

I found these numbers in my research
Oil Cooler 12701592 112706188 supersedes old PN 12701592
Adapter 12675428
Gasket 12676826

Haven't found the bolt part numbers or the other gaskets yet. Still need to make a trip up to the dealer.
 

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I've done quite a bit of work to my truck as seen to try get my truck to run cooler now I'm interested in getting a larger oil cooler if possible. Has anyone put on on and noticed a difference it cooler engine coolant temps
I was looking into the Banks upgraded larger factory oil cooler kit but ended up picking this up instead. Will data log temps and post back here but from old information it looks like I should see a 30-40 degree decrease in oil temp.

1083653
 

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Yip, did you order that as a kit from someone? Or parts you ordered up from different places? Is this on your truck now? If so, what are the results?
 

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Yip, did you order that as a kit from someone? Or parts you ordered up from different places? Is this on your truck now? If so, what are the results?
I found the complete kit on EBAY. It's an older kit that was designed and sold as a complete package up until a few years ago. It is currently installed but I'm in the process of reconfiguring my sensor setup. I should have data after this upcoming weekend.

I have a oil temp gauge plumbed into the the hot side of the cooler and an oil pressure sensor tapped at the filter housing so I should have some good data to post up soon.

If you can find this kit I highly recommend jumping on it as it was engineered really well and holds almost 3 additional quarts.
 

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I was looking into the Banks upgraded larger factory oil cooler kit but ended up picking this up instead. Will data log temps and post back here but from old information it looks like I should see a 30-40 degree decrease in oil temp.

View attachment 1083653
Where does that cooler mount?
 

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I found the complete kit on EBAY. It's an older kit that was designed and sold as a complete package up until a few years ago. It is currently installed but I'm in the process of reconfiguring my sensor setup. I should have data after this upcoming weekend.

I have a oil temp gauge plumbed into the the hot side of the cooler and an oil pressure sensor tapped at the filter housing so I should have some good data to post up soon.

If you can find this kit I highly recommend jumping on it as it was engineered really well and holds almost 3 additional quarts.
Very interesting! Thanks for the Info!
 

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So currently the temp sensor is installed on the cold side (outlet side) of the cooler and the highest temp I have seen is 110F degrees. I'm going to relocate the sensor to either the inlet hot side or back to the pan as 110F doesn't seem right since it's so low. Before temps averaged double that under regular driving conditions and way over double that under load pulling a grade.

Need to confirm that either the sensor is functioning right or configured right by relocating. If 110F is accurate then I am worried that could be an issue since I would assume that most conventional oils perform best around 200 degrees. At least that's what I read but hopefully someone can chime in here with some better data.
 

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Larger? No.

You'd have to look into adding an aux oil cooler. Sandwich adapter, coil, hose...not too bad in $$. But those al fittings shoot up the cost. IIRC, when I priced out the parts years ago, $750-ish comes to mind.

And then there's the debate of running -10an vs -12an. Dmax volume needs fall into the -12 area, but the sandwich adapter is only -10.
However, if you port out the I.D. to match the -12, it works.

Thinner wall, yes. But it's fine to support the low oil psi of the Dmax, and lack of flow volume won't be a concern.
I recently bought 90% of cooling for my dmax and recently saw opinions on using 10 or 12an. Today I used a caliper and the sandwich oil port is .523
The an10 fittings are all .578
The hose is .619.
Basicly puts everything between 9/16" and 5/8"
An12 measures .750 if the fittings match the number I got online. If I milled the oil filter nut I.D. to .620 the entire system would be approx 1/8 in diameter less than the 12AN Sizes. With Dmax shitty oil pressure I don't know why it would not work.
 

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I've been running the 2020 Cooler on my LLY for about 3000 miles now and I haven't had any issues. They only mod I had to do was shave down part of the dorman aftermarket exhaust manifold. OH and make sure to use 2020+ Oil filter.
 

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I've been running the 2020 Cooler on my LLY for about 3000 miles now and I haven't had any issues. They only mod I had to do was shave down part of the dorman aftermarket exhaust manifold. OH and make sure to use 2020+ Oil filter.
What is a 2020 cooler
The year or ?
 
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