Mishimoto Aluminum Oil Filter Housing Kit, Compatible with Pentastar 3.6L & 3.2L, 2011-2017

I had the dreaded oil cooler leak on my 2016 Wrangler JKU. I got a quote of $1500 from my dealer to replace it, so I lived with the leak for a year or so. I have no problem working on my vehicles but this seemed like a fairly involved process and didn’t want my daily driver to be down for any extended time. I finally got tired of leaving oil puddles where I parked and bought the Mishimoto Oil Cooler kit. The process was very straight forward, I watched a couple of videos ahead of time took pics along the way and bagged/labeled the bolts as I removed them. I ended up replacing the spark plugs, coil packs, PCV valve and injector o-rings while I was in there. The project took around 4-5 hours to complete (the PCV valve may have been the hardest part to acccess). The oil cooler is very well made, fit well with no leaks, and the included sensors worked fine. If you’re handy and have the basic tools and a torque wrench (you may also need an inverted E8 torx bit), you can do this project on a weekend day.

Replacing the oil cooler is no joke but it's very doable with this kit. It's very sturdy and well put together. Putting it in was easy after pulling the upper and lower maifolds because it fit perfectly. With the included sensors, there isn't any assembly with the unit also. This is a major upgrade tot he OEM cooler.

Best oil cooler in the market. I have replaced multiple of these but this one has been the best. Unlike other aluminum ones that you need to assemble yourself (Doorman I’m talking to you) and you don’t want to go cheap in this replacement, But this one for the price is one of best options available for you. After the installation the car never leak oil and now after 1 year its working great and it works. I have installed this on my 2013 Dodge charger.

I bought a 2016 Jeep JK Rubicon. Soon after buying it, I found that the stock oil cooler was leaking 1 qt of oil a month, and about a cup of coolant. Bought this, and it stopped leaking. Seriously, like just stopped. I haven't installed it yet, that's why I gave 4 stars, not 5. I carry outside and and show the Jeep now and then, just so it knows I have it. Lol!

Its been a few months? Or so since i installed. So far so good. I do however keep getting oil pressure sensor code. I havent looked into whether its the sensor or maybe the plug on the harness needs to be cleaned but still better than a cracked plastic one that i had put in my jeep a year ago. Which cracked within a year later... I will provide an update once i check it.

Installed one month ago on a 2016 Jeep JK with 125k miles along with Mishimoto coils and ngk spark plugs. Perfect replacement for factory. You will find cheaper versions around, but I felt more comfortable purchasing from a known brand. Incredibly well packaged. Oil leak fixed. Replacement tip: You may only need o-ring replacements for your factory oil cooler, but there's probably no way to tell until you have the old unit out. You may be able to save a few bucks by purchasing both an o-ring kit and this unit, and returning the unit if there's no actual damage to the factory unit, but trust me when I say that it is a pretty good pain in the rear to get the upper intakes and hoses out of the way before you can install the new unit, so you may decide to go ahead and install the new unit anyway just for peace of mind. The o-rings on my old unit were flat to inset, which seemed to be the source of my leak. You'll want to replace spark plugs and possibly ignition coils while you replace the cooler. It's not a difficult replacement in terms of specialty tools (except for a e8 inverted torx bit) or needing specialty know how, it's just that everything in the engine bay is so tightly packed that you may have to fight to fit. I took to sitting on the front clip in an awkward position as I don't own a stand up creeper. You'll want to perform any high mileage maintenance items once you are in there. You'll want to also have a means to burp and refill the radiator properly as you will lose fluids if you disconnect your radiator hoses to gain space. I also recommend purchasing a 2nd oil filter as well as oil for full oil change after install. It's recommended to put some brief mileage on the vehicle after install, then change to fresh oil and filter to catch and remove any welding slag or debris kicked down into the motor from cleaning your intakes. You also have potential to have some coolant and oil mix if the engine valley is full of oil from the previous leak once the old cooler is removed. I don't put a lot of miles on this vehicle, so I likely won't be able to update based on long term stability unless it fails, but so far I am very pleased.

UPDATE: Unit failed after a little under a year. Inner seals failed. I sent pictures to Mishimoto with my Amazon order number and filled out the warranty form- they send me an entirely new unit for only the cost of shipping, and I didn’t have to return my old one. You’ll need the serial number on top of the unit so take a picture. Great customer service, overall very happy. Solid unit, oil pressure sensors which come with it are trash. Already broken after a few months. Use OEM sensors.

Exact fit and very nice upgrade over OEM if you’re a mechanical person you can do the installation yourself and save the labor money. I did use OEM sensors but that was just my personal preference it all worked good. I replaced the coolant hose, temp and pressure sensors, knock sensors, fuel injectors, coil packs and spark plugs. All of those parts are under the upper and lower intake manifold so I didn’t want to do the job twice. It came with the manifold gaskets.

Bottom line up front: Mishimoto is restocking and continuing to sell a part with known design flaws while working on a new version. Given the risk of failure and the slow, inconvenient warranty process, I strongly recommend researching this product thoroughly or considering alternatives like Dorman. Review: I installed this oil cooler on my 2012 Jeep Wrangler 3.6L, and after a few months, it failed—causing severe oil contamination in my coolant system. While my engine oil remained clean, my coolant reservoir filled with oil, clearly indicating an internal failure of the part. When I reached out to Mishimoto for warranty support, they initially responded quickly and directed me to purchase the $30 warranty shipping through their website. However, as an international customer, their website wouldn’t let me proceed—it required selecting a U.S. state, making it impossible to place the order. After multiple follow-ups, I had to call them directly, only to find out that my ticket had been moved to a different department—without any communication. They then told me that I didn’t need to purchase the $30 warranty shipping as they were figuring out another way to send the part and will send me a 'quote' for this, but they had failed to inform me of this since they last mentioned the warranty shipping. Eventually, they stated that a replacement would take 1–2 months just to be restocked, after which they would begin the shipping process. During the call, the representative also admitted that Mishimoto is working on a new design to fix known issues with this part, set to be released at the end of the year. That alone should be a major red flag for anyone considering this product. As a result, my Jeep has been out of action for over a month, and rather than waiting for their long, drawn-out replacement process, I decided to fix the issue myself by purchasing a Mopar oil cooler matrix while keeping the Mishimoto metal housing. If you're considering alternatives, Dorman also makes an oil cooler, but their housing seals have been said to leak—so if you go that route, I strongly recommend replacing them with OEM Mopar seals for reliability.

Very good product. I used the other aluminum housing still have oil leaking and size bigger than factory housing. This is very fix to jk and stop leaking immediately. Recommended this product.

So far so good. It is quite the large job, if being done properly, and with the care needed for this replacement. So far, it’s working, and sealed properly using the correct torque specs for every. Also replace the spark plugs, and Mopar hose 68092947AD available on Amazon if this is for a Jeep JK. Mine ended up needing the hose, but I replaced the cooler as they are known to cause issues. Trust me, replace the hose….

Great quality product as expected from Mishimoto. Definitely worth the extra $$ over a Dorman considering changing this cooler is a bit of a job