Dorman 902-3035HP Patented Thermostat Housing Assembly with Thermostat Compatible with Select Chrysler/Dodge Models (OE FIX)
Condition: New
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Availability:
In Stock.
Arrives
Thursday, Jul 2
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Features
- Upgraded replacement - this coolant thermostat housing assembly is made of aluminum and is able to withstand underhood temperatures better than the original plastic assembly
- Increases reliability - Aluminum design reduces future maintenance and provides increased cooling system protection
- Patent-pending design - engineered to optimize coolant flow and heat transfer, tested and backed by a team of product experts in the United States and more than a century of automotive experience
- Application specific - made to directly match the function and fit of the original engine coolant water outlet on specified Chrysler and Dodge vehicles
- Ensure fit - Input your vehicle into the garage tool and check Confirmed Fit bar at the top of the page. If there is an i in a blue circle, additional verification is needed. Please hover over the "i" to verify fitment notes match your vehicle
Description
The original coolant thermostat housing assembly on certain Chrysler and Dodge vehicles is made from plastic that becomes brittle over time, eventually leading to cracks. In addition, overtightening the bleeder valve can cause fluid leaks that can damage the cooling system. This Dorman OE FIX thermostat housing assembly is manufactured from aluminum to provide increased coolant system protection, and features patent-pending design upgrades that optimize coolant flow and heat transfer. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chrysler 300: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023] - [Dodge Challenger: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023] - [Dodge Charger: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023]
Manufacturer: Dorman Products
Brand: Dorman
Model: Dorman 902-3035HP
Item Weight: 11.4 ounces
Product Dimensions: 5.98 x 3.54 x 3.54 inches
Item model number: 902-3035HP
Exterior: Ready To Paint If Needed
Manufacturer Part Number: 902-3035HP
OEM Part Number: 5184977AD; 5184977AE; 5184977AG; 5184977AH
Date First Available: August 2, 2022
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jul 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
My 2015 Charger SXT had a P0128 code and I bought this to fix the code. After the repair and burping of the system, I noticed that my coolant was operating properly at the correct temperature over 200 degrees. Before it never went over 170 degrees and I noticed how much my car had more power! Very easy install! Cleared code and my car runs awesome now!! Definitely cop!!💯😎 Especially over the plastic housing ones..
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Reviewed in the United States on February 25, 2026 by Donna
Thermostat and the housing is in high-end material, but keep in mind that the thermostat opens on 100°C (212°F) And all fits good and easy to install. "Dodge charger SXT PLUS 2018"
Reviewed in the United States on May 2, 2026 Reviewed in the United States on May 2, 2026 by Mohammed Rashid Mohammed Al-Busaidi
2016 Dodge Challenger SXT. So, I am a Dorman fan here, but I did have my scare with this product.(Explanation in the long review.) Short Review: Works perfectly fine, it fit perfectly, lasts a relatively long time, build quality is exceptional, very durable, warranty claims live up to their policy. You get the value for the extra clams you spare. To replace the thermostat, you have to buy the housing as well for people that don’t know this. Long Review: Okay, so let’s get started. I have officially had this product for a year and three days now. It has worked like a charm except for one scary thing that happened a month ago when it started to get cold. I was driving and saw a check engine light pop up and thought it was odd, so I read it and it said thermostat. (It normally pops up when operating temps aren’t reached within 10 minutes). Shrugged it off and cleared it since it was absurdly cold. It happened again, so considering I have not had this product for a year, I reached out to Dorman and told them I think I have a faulty thermostat. (this is why they keep five stars.) Gave the details as of why, etc. No hassle, they sent me a new one. I start to take off the old one and immediately, the spring falls out and the tensioner that holds the spring in place is chilling inside the block. (This is the scary part..) Anyway, I have replaced it with another one and I do trust their parts. Things happen and it does fit perfectly, built very well, and I do believe that they do last a very long time, I just got a dud. Don’t let my story scare you out of buying it, as I am still running one of these.
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Reviewed in the United States on December 7, 2025 by Austin Lee
Better than OEM. Hard plastic one gives out in a year that's garbage to my car. This unit last longer and better.
Reviewed in the United States on May 5, 2026 by Homero
Working great in my charger, and much better than the plastic one from the factory
Reviewed in the United States on June 9, 2026 by Amazon Customer
Nice replacement part that's super easy to replace on a 3.6 Pentastar engine. Flushing the system takes forever but this part of the job was easy. The only thing I didn't like is the way the thermostat is secured but I modified it slightly to fit tight. It seems like it could potentially fall out otherwise.
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Reviewed in the United States on May 7, 2026 by Curtis
Best place to order imo! Solid part, this completed my aluminum upgrades on the 3.6!
Reviewed in the United States on May 26, 2026 by Loic
Thermostat Housing assembly received in late September 2023, but was not installed until May 2024. Assembly was as received shown in photo 1 (screenshot from the Amazon listing). The assembly was installed in May and vehicle was fine with no problems until the winter about 6 months later. Then the vehicle would set an Engine Trouble Light and my code reader would show Code P0128 "Thermostat Rationality" - which basically means the thermostat is not allowing the engine to reach the expected temperature as quickly or completely as expected given the length of time and conditions during which the vehicle had been run or driven. I erased the code with Blue Driver and the instant code went away turning the MIL lamp off, only to have the trouble code re-appear several days later. This went on for about a month or so, then we did not see the code again until February of this year, when it began to occur about every three days or so. I ordered the Genuine MOPAR Thermostat Housing Assembly, as that is the only way to get a genuine MOPAR thermostat. It was little hard to find as many dealers messaged that it was on 'backorder' but I finally found a dealer source and got the part ordered. I drained the coolant and removed the Dorman aluminum housing and disassembled it completely to get a good close look at the actual thermostat components to try to understand why it had failed. So to be clear, the problem is not with the aluminum housing, it was the "thermostat components" in the housing that were causing the problem. See the second photo - it shows the disassembled components from bottom to top in an exploded view. To remove the thermostat components from the housing, compress the spring and rotate the stainless steel retainer out the slots and all the parts can be laid out as shown. If you look inside the coolant passage of the housing, you can see a rubber seal laying across the raised portion that the thermostat "pill" plunger pin bears on to allow the thermostat to open against the force of the spring. That seal is supposed to be fixed into the groove around the perimeter of the stainless steel thermostat disk. You can see that the groove on the disk is empty. So the seal worked its way out of the retaining groove and ended up caught in the coolant passage. This happened over time and likely finally completely dislodged in February. What this means is that the thermostat was unable to completely seal the coolant into the engine block for warmup as it would leak around the edge of the disk. See the last photo for more detail. I did not take more detailed photos, but the visible wear and tearing on the seal ring shows that it was at least partially loose and was partially caught in between the disk and the housing, rubbing causing visible tearing on the surface of the seal. Looking at the thermostat disk itself, I can see that the perimeter groove is not uniform in width and it appears that the crimp made around the rim was not uniform or was possibly not centered on the disk, resulting in variation in width of the groove and inability to correctly retain the seal ring. These are quality control issues or manufacturing defects. My advice is to get the DORMAN housing as it is a quality part, but remove your old MOPAR thermostat from the OEM plastic housing, remove the Dorman supplied parts from the aluminum housing, and re-assemble the MOPAR thermostat parts into the aluminum housing. I did this with a new MOPAR thermostat, re-installed on car, and its working as expected with no issues.
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Reviewed in the United States on May 31, 2025 Reviewed in the United States on May 31, 2025 by Brett R