Dorman 902-852 Engine Coolant Thermostat Housing Assembly

he Dorman 902-852 Engine Coolant Thermostat is a must-have for any 2014 JK owner. This high-quality thermostat is easy to install and will solve the P0128 code that you're getting on your OBD2 reader. I've been using the Dorman 902-852 Engine Coolant Thermostat in my 2014 JK for over a year now, and I'm so glad I made the switch. The old thermostat was giving me all sorts of problems, including the P0128 code. After installing the Dorman 902-852 Engine Coolant Thermostat, all of my problems went away. The Dorman 902-852 Engine Coolant Thermostat is made with high-quality materials and is built to last. It's also very easy to install. I was able to do it myself in just a few minutes. If you're a 2014 JK owner, I highly recommend the Dorman 902-852 Engine Coolant Thermostat. It's a great product that will solve your P0128 code and keep your Jeep running smoothly. Here are some of the pros and cons of the Dorman 902-852 Engine Coolant Thermostat: Pros: Easy to install Solves P0128 code Made with high-quality materials Built to last Affordable Cons: None that I can think of! Overall, I highly recommend the Dorman 902-852 Engine Coolant Thermostat. It's a great product that will solve your P0128 code and keep your Jeep running smoothly.

After getting a check engine light on my jeep wrangler , I was able to read the code and found it was a P0128 code indicating the engine was running cooler than expected. This could indicate a thermostat that was stuck open. To further verify that the thermostat was the culprit I used my ODB2 scanner to monitor the coolant temp. With the engine idling in my driveway, the original thermostat was cycling the coolant temp between 190 and 200 degrees which seems a little low for the 3.6L Pentastar engine as that thermostat should just start to open at 203 degrees and reach fully open near 215 degrees. My cabin heat, while ok, was also just not as hot as I was used to. This thermostat install is a relatively simple procedure and there's already a gasket installed on the replacement. I cleaned up the mating surface on the engine with a green scrubby pad to help insure a leak free seal. I also used a small bicycle sized torque wrench to reinstall the bolts and torqued to 105 inch lbs. This is just a little over 8 foot lbs - don't get these mixed up. So the bolts are snugged up nicely but do not need to be cranked super tight. With the new thermostat installed, the coolant temp is now cycling between 200 and 213 degrees. The P0128 code is also gone, and the cabin heat is back to its normal "nice and hot". Make sure you have the proper coolant to add back in to your radiator as you will probably lose 1/2 gallon or more minimum.

Fit correctly and is exactly like OEM, installed in 15 mins no leaks and oring is good quality. Dorman has definitely done much better on products lately they've really stepped up.

This thermostat failed in less than two years (seized shut). Purchased another due to a mix up for an upgraded unit. Received a used/broken item sold as new. Will work in a pinch, but don't count on longevity.

Works as it should, I had a lower temp t-stat from when my jeep was pro charged and it would not get nearly warm enough during the cold weather. But now with a normal OE temp T-stat it was a great toasty jeep

item came well packaged and as described. Part fit perfectly and is functioning well

I have a bad experience with this thermostat, I was going to buy Mopar OEM but read a bunch of reviews and decided to purchase this one from Dorman, the thermostat isn’t opening at 203f like stated it’s opening between 222-227f and causing my jeep to run hot. I have reached out 2 Dorman 2 times with no response. I have 2 stars because the figment was great I must have just gotten a bad thermostat. Edit added 2 stars because Amazon sent a replacement and it fixed my issue but idk how long it’s going to last and I have to go send back the old one.

2nd of these I have used on 2 Grand Cherokees. at 8 and 10 years when the operating temp didn't come up quick enough. Replacing for 10 degree difference is a nuisance, but It seems like the new unit actually improved fuel economy a little. Installation is less than 15 minutes and I didn't even bother to clear the CEL. It went away after about 5 restarts. OEM Quality for a perfect fit.

bought for my 2017 jeep jku rubicon, had error code P0128. my thermostat was stuck open, wouldn't have hurt engine, but made engine run colder than it should.. installed new part, code went away, engine still sits at half point on the gage, right where it should be. get more cabin heat now that engine has chance to warm up, very easy install, easy to get to. just make sure you have extra coolant, because you will lose about 4 cups worth taking old one off.

Le quedó bien a un Jeep Wrangler 2014, espero sea durable.

kit manicotto e termostato montato su jeep grand cherokee 3,6 anno 2011 funziona bene speriamo si mantenga bene a lungo

Good quality. Great product!

Has been on my JK for 6 months, had great heat this winter temperature seems to stay even and installed as well as an oem. Main reason I bought this one the oem’s have been back order for almost a year in Canada.