Anyone ever turn a davco into a coolant filter? My recently purchased 12.7l doesn't have a coolant filter and I just changed the air compressor and water pump and the coolant was pretty scummy and gritty. I don't know the history of the coolant so I am switching it out to rotella oat elc, it is orange that is compatible with red so shouldn't be any issue going to red. Anyways I was wondering if you can turn the davco into a coolant filter? I have an extra one laying around, I figure it shouldn't be that much different that using it as a fuel filter? Not sure if I am missing something or not. Otherwise I will just order some generic remote filter mount for a coolant filter.
Davco 382 into a coolant filter?
Discussion in 'Ask An Owner Operator' started by Kruse Family Farms, May 17, 2026 at 6:38 PM.
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
Colour doesn't mean anything in terms of coolant compatibility anymore.
I would do a very thorough flush of the system rather than a drain and refill due to the contamination you're describing. Plus you will know for certain that you won't have compatibility issues with mixed coolants.
What's the micron rating of the Davco? I'd be very hesitant to use a fuel filter element for coolant since they're usually filtering down to a few microns.
Since you are switching to OAT coolant I probably wouldn't put a coolant filter on there that has cooling system additives (SCA). Not really needed with modern day coolants.beastr123, Diesel Dave, Big Road Skateboard and 3 others Thank this. -
You can do all sorts of different micron ratings. For fuel I typically run a 7 but I believe I can go up to 25 micron. I am basically flushing it twice. So it should be pretty clean at that point. I didn't have the right coolant on hand. I accidentally bought NOAT at the store and I wanted OAT. So I ran this coolant through some filters a few times to help clean it up some. Planning to flush it out next week again and thinking about a filter of some kind.
-
No, Davco is a water separator.
contact the engine manufacturer and see if they have a kit for a coolant filter for that engine.W923 and Kruse Family Farms Thank this. -
I found a really nice kit. Not for this truck but I can make it work for $150. Most likely going to throw that on.
-
Seems like all the need is the coolant filter base from something like a 3406b/c or dt466 some hose and fittings. You can probably get the filter base from your local salvage yard for little to nothing if money is that big of an issue heck I have a few I’d give you if you’re near Quincy il
Save the davco for what it’s made forbeastr123, Diesel Dave and Kruse Family Farms Thank this. -
I wish I was near scrap yards. Nearest one is four hours. I miss getting tons of parts from scrap yards. They kit I found comes with all the stuff I need. Some hoses, valves, base, filter, etc etc. I feel like that is a pretty good price.W923 Thanks this.
-
Personally, I would just flush very, very well multiple times. Then not worry with the coolant filter.
I removed the ones from my trucks, and did so for lots of customers too. As @AModelCat said, really not needed anymoreKruse Family Farms Thanks this. -
Just not needed cause the ELC OAT is that good now?
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.