Kat's Heaters Custom Engine Block Heater - Frost Plug Style - 120V - 400 Watts - 35 mm
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2021 Jeep Wrangler
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2021 Jeep Wrangler
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This frost-plug heater replaces the frost plug in your engine block and submerges in the coolant to keep engine fluids from thickening. Results in easier start-ups, faster heating of your cab, and less wear and tear on your Jeep Wrangler in cold weather.
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.
Speaker 1: Today we're taking a look at the kats heaters, custom engine block heater. Now this unit ensures smoother startups, as well as faster heating and defrosting of your cab. It simply replaces the frost plug or the core plug in the engine block, and it's designed to submerge and cool it. It warms the engine fluid, which increases lubrication and overall performance. And it simply keeps the fluid from thickening, and it protects against damage in colder weather.This is designed to pre heat the engine, to reduce condensation in the engine block, so that emits less pollution and fewer gas emissions. And it does come with the removable power cord.
You can wrap this through your grill and then plug into the standard 120 volt AC outlet. The removable plug is a nice feature because if that ever gets damaged, if that cord gets damaged, you don't have to replace the whole unit, you just need to replace the power cord.These components over here are constructed or corrosion resistant brass. It is custom fit for your vehicle. It's CSA approved, and it's made in the USA. The diameter of this area here, this is the portion that actually fits into the engine block connection point, this is a 35 millimeter diameter.
When it comes to the wattage, we're looking at 400 watt, and an amperage of 3.3 amps.Instillation's pretty simple, again it replaces the frost plug or the core plug in the engine block, and it has the seal right here which creates a nice tight seal at the instillation area. And then you would take a small Allen tool, place it in there, tighten that up, and as you tighten, it'll spread these wings, which is going to create a nice, tight fit at the connection point.A couple of notes that I need to mention, please do not use this heater with 100% antifreeze solution. And be careful not to start your engine with the heater plugged in. That's going to do it for today's look at the kats heaters, custom engine block heater.
Customer Satisfaction Score:
94% were satisfied with this product
6% of customers were not satisfied
Ratings & Reviews
Jenny N.
12/27/2021
I wanted to reach out to you in regards to your review on the engine block heater. You mentioned that the heater is not working correctly and I have a question that I would like to ask. What size engine does your 2000 Toyota 4 Runner have?
Desiree
12/27/2021
Engine size is 5ZFE, 3.4 L V6
Jenny N.
12/27/2021
I have reached out to the manufacturer and confirmed that it will fit a 2000 Toyota 4runner with a 5ZFE, 3.4 L V6 engine. The best location to install the heater block on a conventional front facing engine is the left rear location.
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. :)
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.
Terry F.
1/10/2020
EXCELLENT1
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.
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Joe
8/3/2024
Like new. Quality counts!