I have a 2015 JKU Sport that I just purchased. I knew there was a coolant leak, by the smell. I am getting the radiator replaced & I swapped the thermostat housing & hoses. When taking the top hose off, I noticed a leak behind the tensioner pulley. Apparently, the coolant crossover is the problem. My issue is that it says that the crossover on the Jeep is plastic. The only way to get the "correct" part number is to get the Mopar kit that includes the timing cover & is VERY expensive. There looks to be the same part, but it isn't for the JK's 3.6, for some reason... There is a list of most other Chrysler & Jeep models with the 3.6L, but the part looks to be aluminum. Is there a reason I can't use the aluminum part? Any help is appreciated!!
2015JKU Coolant Crossover Question
- Thread starter NEGAN1
- Start date
Anyone else figure out this solution? I am in need of a new coolant crossover as my thermostat is leaking from a destroyed thread. Purchased the aftermarket aluminum Dorman one available for the 3.6's however they don't work due to design on the Wrangler with the alternator mounting location.
Need to stop this leak but also don't want to shell out close with $1,000 for the whole timing cover.
Need to stop this leak but also don't want to shell out close with $1,000 for the whole timing cover.
The plastic coolant crossover issue is a known problem with the 3.6L engine, and many owners have experienced leaks over time.
Regarding your question about using the aluminum part, while it may seem like a tempting alternative, there are a few reasons to be cautious. The coolant crossover is designed specifically for each engine configuration, and while another model with a 3.6 engine may share similarities, the mounting points and design could differ. Using a part not specifically made for your JK could lead to alignment issues, improper sealing, or even coolant flow problems, which can cause further damage.
There are aftermarket options available that may be less expensive than the Mopar kit but still offer a durable solution. Just make sure to check reviews and ensure that they are compatible with the JKU.
In summary, I would recommend sticking with the part designed for your specific model, even if it means dealing with the higher cost. It’s usually worth the investment to avoid future headaches! Good luck, and hopefully, you’ll have your JKU back up and running smooth in no time!