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Splices into your lower radiator hose to circulate warm coolant through your radiator in the winter. Allows easier start-ups and prevents frozen hoses. Once the engine is on, warm coolant cycles through the heater core to heat your cab faster.
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Start your engine easier and warm your cab faster in cold weather with this lower radiator hose 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 heater splices into your lower radiator hose to heat your coolant. The heated coolant pushes the cold coolant through the radiator and thermosiphons it back to the heater. The heater's internal thermostat automatically shuts the heater off at 270 degrees Fahrenheit to keep the coolant at an optimal temperature, which allows the heater to operate safely overnight to ensure that no hoses freeze while your vehicle sits. Once you turn the ignition in the morning, your vehicle's water pump will cycle the heated coolant through the engine block and heater core. This will allow for a smooth startup, and it will also help your cab to heat and defrost faster.
Average Customer Rating: 4.7 out of 5 stars (34 Customer Reviews)
Splices into your lower radiator hose to circulate warm coolant through your radiator in the winter. Allows easier start-ups and prevents frozen hoses. Once the engine is on, warm coolant cycles through the heater core to heat your cab faster.Best way to get fast starts on those frosty winter mornings.
It’s working Ok but I think the block heater would have been better, as it heats a little but I guess with the car outside and being so cold out it really can’t get that warm being in the lower radiator hose instead of the engine block itself. But at the time I installed it was middle of winter and did’nt have the time or weather to install one in the block instead as it would have been a project to do it that way .Maybe in the warmer weather I will switch to the block heater instead.
Cracked after 2 days of use.
Jenny N.
11/14/2022
This heater has a 1 year warranty. I will have our customer service team reach out to you.
Installed on a Mitsubishi 6 Cylinder diesel marine engine and worked like a charm. Some mornings experienced -25 degree Celsius temperature and engine would start first try, highly recommend.
Quick and no hassle. And just as picture and description says.perfect
Great price ... quick shipping
It is a great product. I only gave it 4 stars because it won't fit in the location I need to put it. So I put it on my wife's car instead of my tractor. IT works great.
I ordered this for my John Deere lawn tractor. I use it in the winter to blow snow but have to keep it in an UNHEATED shed. The heater works awesome and is compact enough to mount behind the side panel with absolutely no interference with anything. I Highly recommend this heater and etrailer.com to buy it from, they are great to work with and the item came quickly.
Appears to be a quality product. I have not used it yet.
I got this heater about a year ago but only installed it about a month ago. I have it in a
John Deere tractor with a 21 HP diesel engine. Here in Canada our temperature is measured in celsius and at minus 25 C which is about minus 12 F this little heater melted the snow and ice off the engine cover. I would recommend this heater to anyone. it is an excellent device.
Quality. I hope it works as well as it looks! Will install soon.
Even though it took a long time to get The 1 inch radiator hose heater I understand the circumstances behind it, and I am impressed And grateful that you kept after it and kept me notified thank you Bill
This is a great cats heater would I buy this product again from this company yes I would keeps my engine block warm
Installed on mahindra 2516 hst. Heater worked great in single digit weather.
Was fast delivery pleasure to deal with trailer
Received the heater today. Looks good. Will install in the next couple of days. It will go on my small ford tractor to replace the bad one on it now. Thanks for the good service
This was a replacement as my previous one was damaged. In general, a great warmer for my 2003 VW TDI. I typically only use it when it's below 20F. It's nice coming to a car that is warm from the get go.
My in-line lower radiator water heater arrived earlier than expected. It was packaged well and protected to ensure that it wouldn't be damaged. I was very pleased with the speed and accuracy of my order.
After reading the instructions it was a very easy install. Took about 1hr to install let it run for 40 minutes to check for any leaks and get the air out. This is a DIY project.
Does what it is supposed to do-keeps the radiator fluid temp above freezing.
Great product and works perfectly!
They did a great job in keeping us informed on the back order. They also quickly sent a different kit, when we realized we had ordered the wrong one.
The heater fit and worked well, that's all one can ask of it. Thanks
Good product, awesome service. Very pleased with customer service.
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David
2/23/2019
I finally got the block heater installed instead of the in line one and its much better with the heating process, so just removed the in line one and would like sell it or give it to someone who it would work better for. Guess with it being a 350 engine and a large radiatior for a high performance car it just wasnt enough to keep it warm enough for the short ride to work. Really isnt that cold around here and the block heater seems to work better.