Kat's Heaters Custom Engine Block Heater - Threaded Immersion - 120V - 400 Watts - 36 mm
This item does not fit your vehicle
2015 Dodge Durango
These items fit your vehicle
2015 Dodge Durango
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Cold weather can make starting your engine harder. This 400W threaded immersion heater screws into a 36 mm opening to warm the coolant before startup, making starts easier, reducing engine wear, and warming up your vehicle sooner.
Features:
Specs:
Notes:
Start your engine easier and warm your cab faster in cold weather with this frost-plug-style engine block heater. Heating your engine coolant keeps it from thickening and freezing, resulting in more reliable start-ups and smoother operation altogether. It also lessens the workload and extends the life of your vehicle's battery. And because starting your engine when it's warm creates less condensation in the engine block than starting it when it's cold, your engine will get better initial fuel vaporization, which causes fewer emissions and less pollution.
This frost-plug heater replaces the core plug in your engine block. The power cord on the heater is removable so that you won't need to buy a whole new heater if the cord gets damaged. The cord can be routed through your grille for easy access to a 120-volt outlet or extension cord. If needed, a longer or shorter cord (sold separately) can be purchased to better fit your application. Make sure the heating element is fully submerged in the coolant before plugging it in.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello, everybody. This is Jeff at etrailer.com. Today we're gonna take a look at this Kats Heaters 120 Volt 400 Watt Custom Engine Block Heater. Now, this part here will ensure smoother startups and faster heating and defrosting of your cab. This part will replace your frost plug in your engine block, and it submerges in the coolant. This will warm your engine fluid to increase lubrication performance, keeps the fluid from thickening and protects against damaging cold weather.
This will preheat your engine to reduce condensation in the engine block. That'll emit less pollution and fewer gas emissions. Now, it does include this five foot long removable power cord. You'll just route this through the grill, plug it into a standard 120 volt AC outlet, and on the other end, you just line it up with the heater here, plug it in and just like that, you're all ready to go. This will be installed into your engine block, has a gasket on it to help seal it.
Now, this is constructed of a corrosion-resistant brass. It is a custom fit for your vehicle. It is CSA approved and it is made in the USA. Again, this one here is designed to fit 36 millimeter diameter frost plugs on your engine block. The wattage on this is 400 blocks and the amperage is 3.3 amps.
Couple notes on this heater. You do not want to use this heater with a 100% anti-free solution, and you do not wanna start your engine with the heater plugged in. But that should do it for the review on this Kats Heaters 120 Volt 400 Watt Custom Engine Block Heater..
Customer Satisfaction Score:
76% were satisfied with this product
24% of customers were not satisfied
Ratings & Reviews
Gwendolyn Y.
2/26/2025
Hey Russell. Thanks for taking the time to share this feedback. We don't have a way to track these types of applications so I know it will be helpful to someone else along the way!
Russell
2/24/2026
its bben a god send -just worked out as i needed it to . in fact dodge diesel changed one and added to for industrial in 75 bobcat now about 1.5 hours and it starts right up even at -10 sitting for a week -yahooooo in michigan
Gwendolyn Y.
2/5/2026
Glad the heating is working out and keeping your engine warm in the winter. I'll let Adam know that you got everything and make sure he gets that shout out!
Lazer S.
11/18/2025
Glad we could help, Chad! Let us know if there is anything else you need! ^___^ Out of curiosity, where are you located? We get orders for these fairly often, but it's always something I want to ask people.
Brooke M.
2/3/2025
So glad to hear that, Leon! We are here if you need anything else. :)
Terry F.
1/10/2020
EXCELLENT1
Chris
11/28/2025
Still working, had purchased the Amazon knockoff the two years prior and each one only lasted a year. Bought the Kats and it’s still working this year.
Joe
8/3/2024
Like new. Quality counts!
Kevin
3/6/2019
It was simple to install once I figured out how to drain the coolant from my 2016 Ford Edge. Had to remove a few vacuum lines in order to get my arm into the correct angle to thread it into the block. Works great. Far better than the $400 that Ford parts wanted for their kit.
Do you have a question about this Vehicle Heater?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Alejandro
10/27/2025
Good