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

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.