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Description
8HP DODGE Challenger/Charger Thermostatic transmission cooler adapterHPR Tuning has partnered with the American company Improved Racing to create the first bolt on transmission fluid adapter with a thermostat for the 8HP transmissions found in the Dodge Challenger and Charger. The adapter's built in thermostat automatically bypasses the transmission cooler until the fluid reaches 160F. The thermostat reduces rough shifts caused by overcooled transmission fluid, reduces wear, and improves efficiency and horsepower. The
HPR Tuning has partnered with the American company Improved Racing to create the first bolt-on transmission fluid adapter with a thermostat for the 8HP transmissions found in the Dodge Challenger and Charger.
The adapter's built-in thermostat automatically bypasses the transmission cooler until the fluid reaches 160ºF. The thermostat reduces rough shifts caused by overcooled transmission fluid, reduces wear, and improves efficiency and horsepower. The transmission can now reach operating temps quickly with large aftermarket transmission coolers. This allows for high cooling capacity without sacrificing drivability.
The adapter features -8AN male connections for aftermarket AN lines.
Important Application Notes:
- The adapter can only be used in conjunction with external transmission fluid coolers.
- The adapter does not directly connect to the factory lines. Aftermarket AN lines must be used.
- The adapter will only help resolve rough shifting issues if they are caused by overcooling of the transmission, usually due to the addition of a larger aftermarket transmission cooler.
Features and Benefits
- Bolt-on fitment for 2015-2023 Dodge Challenger and Charger 8HP series automatic transmissions.
- Built-in thermostat prevents temperatures from dropping below optimal levels, reducing wear, improving efficiency and horsepower, and helping to eliminate rough shifting.
- -8AN male connections.
- 6061-T6 billet aluminum construction with black MIL-A-8625 Type II anodized finish.
- Thermostat portion is made in the USA by Improved. Adapter portion is made by us here in Norway.
Temperature Rating Specifications
Note: The 160ºF temperature rating is recommended for most applications.
| Part Number | Typ. Stabilization Temp | Activation Temp | Full Flow Temp |
| TCH-101-T2 | 165ºF (74ºC) | 160ºF (71ºC) | 181ºF (83ºC) |
Includes
- 1x TCH-101 transmission cooler adapter block with built-in thermostat.
- 2x O-ring seals and washers.
- 1x Zinc-plated steel mounting screw.
- Installation instructions.
Applications
- 2015-2023 Dodge Challenger / Charger R/T, 5.7L Hemi V8.
- 2015-2023 Dodge Challenger / Chager R/T Scat Pack, 6.4L Hemi V8.
- 2015-2023 Dodge Challenger / Charger SRT Hellcat, 6.2L Hemi V8.
- Fits 8HP 70 transmissions found in 2015-2023 Dodge Charger and Challenger with 5.7L, 6.2L, and 6.4L Hemi V8.
- Note: Will not fit the 8HP90 versions
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 373 reviews
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Product Reviews
★★★★★ 4
Good quality, but a few issues with the hidden mounts and levelness.
Size: 35x7 2Pcs, Color: Black, Size: 35x7 2Pcs, Color: Black
These are quite nice and also sturdy. Only complaint I have is that I bought a couple of these, and on one of them, only one of them, it was difficult to get the hidden mounts to go into the holes. I think it was probably a manufacturing defect thing. Also, on that particular one, it wasnt as level as the other. Not a show stopper, but if you need a perfectly level type of mounting situation, I would be careful here.
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Reviewed in the United States on September 14, 2025
★★★★★ 5
Great value/easy to install.
Size: 24x6 2Pcs, Color: Black, Size: 24x6 2Pcs, Color: Black
Great product and great value. Easy to install and adds a nice touch to a bathroom.
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Reviewed in the United States on March 21, 2026
★★★★★ 5
Easy hanging
Size: 31x7 2Pcs, Color: Black
Great size and easy to hang. Have purchased many for my home.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Look great!
Size: 40x7 2Pcs, Color: Black
Love the way these turned out in my office! I connected 3 shelves in a row across the wall to make one long shelf and it looks great!
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Reviewed in the United States on April 16, 2026
★★★★★ 3
Nice looking. Not very sturdy. Easy to install.
Size: 40x7 2Pcs, Color: White, Size: 40x7 2Pcs, Color: White
Update: The shelf slopes at about a 45° angle when you put anything more than about a pound on the outside edge of it. Perfectly fine up against the wall. Just seems like the braces inside aren't long enough to really give the stability needed. Bracket is nice and tight against the wall. Had to add braces underneath to hold a small plant, a photo and a small container. Wa sloping more and more each week
The shelves look great and we're pretty easy to install. They have a single bracket that is very easy to mount to the wall and get nice and level..
The downside is that the bracket isn't long enough to go between studs. This seems like a pretty simple oversight. I mean why wouldn't you make it long enough to go stud to stud?
Secondly and maybe more fatally the bars that go inside the shelf to support them coming out from the wall are significantly shorter than the depth of the shelf. Unfortunately this means the shelf is only supported the first few inches coming out from the wall so there is the potential for a slight lean forward..
The anchors they send are trash. Cheap soft plastic that just tears and bends with a screwdriver. I would suggest spending $2 and grabbing your own anchors from Ace or home Depot.
The shelves are essentially made of a high grade cardboard kind of wood. They are not going to support much weight or last for years and years however there incredibly affordable and look nice and easy to install. Long as your expectations are right you'll be happy.
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Reviewed in the United States on October 23, 2023
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