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Best Automotive Performance Tank Type Engine Heaters

Zerostart & Temro 3308003 Circulation Heater
Circulation heaters offer dependable engine starts all winter long by circulating warmed coolant through the engine. Temperature sensing safety thermostat provides overheat protection 147 Degree Fahrenheit (64 Degree C) ON - 185 Degree F (85 Degree C) OFF.
Reviews
"I installed this on my 2009 Isuzu NRR rollback and I'm somewhat satisfied."
"Works great."
"This seems to be a good heater, but, unfortunately, we could not mount it low enough on the JD 450 to have it work ."
"Great deal."
"We are in northern Minnesota I see other people reviewing other heaters saying things like "this worked so great it was all the way down to 25 degrees F last night and my motor was all warm" well to heck with 25 degrees here we are talking about NEGATIVE 25 degrees, or worse, and then add windchill on top of that. I installed this thing on the drivers side underneath the battery tray, I hooked one line from the oil filter cooling housing to the heater then the outlet of the heater up to the distribution spider on the driver's side of the head. I let it run all night and went out to check it in the morning, sitting outside at a crisp -22 degrees. Using my infrared heat gun I found the top of the intake manifold to be ~90 degrees, the upper radiator hose was ~150 degrees, the head was about ~160 degrees on the drivers side and ~120 on the passenger side. I don't remember what the low temp was that night, but the morning after when I took these readings around 10 AM it was -22 F. This thing works really, really well but proper installation is critical and as you will see in the pics I did some extra things like putting pipe insulation on my hoses going to and from the unit (hey, do you want to give that heat away to atmosphere or do you want it to go into your engine?"
"The device does not provide any pre-warm up on the vehicle it is installed in."
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Zerostart & Temro 2204037 Circulation Heater
Circulation heaters offer dependable engine starts all winter long by circulating warmed coolant through the engine. Thermostatically controlled: Opens at 190 Degree F, closes at 151 Degree F. Vertical installation only.
Reviews
"Works great."
"i use it on my dragster together with a circulating pump on the coolant and i get the engine to 160 f in about 2 hours."
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Peterson Fluid Systems 08-0300 Oil Reservoir Pre Heater
Peterson 08-0300 OIL RESERVOIR PRE HEATER. Enter your model number to make sure this fits.
Reviews
"Very good product--heats great--but kit did not include a 1/2" to 3/4" bushing."
"Seemed like a Good quality product."
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Best Automotive Replacement Tank Type Engine Heaters

Zerostart 350-0043 Engine Block Heater
Engine Block Heaters are used to heat the engine block and engine fluids of gas and diesel vehicles as an aid to starting in cold weather. Zerostart works directly with OEM engine and vehicle manufacturers to design Engine Block Heaters for their specific applications.
Reviews
"Install was a breeze, works great only wish it came with the electrical plug cover."
"I put this into a 97 Ford 7.3L Powerstroke."
"I installed one of these in my '99 E350 7.3L work van - between the fuel savings and time savings of waiting for the beast to warm up in the mornings it paid for itself very quickly."
"Very pleased!"
"Arrived quickly, easy to install and worked as advertised."
"great replacement heater for a 7.3 ltr."
"I did an ohm test on cord and heater."
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Best Automotive Performance Hose Type Engine Heaters

Genuine Chrysler 55057222AD Heater Return Hose
Genuine Chrysler 55057222AD Heater Return Hose.
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Best Automotive Performance Freeze Plug Type Engine Heaters

Maradyne MM-A1090002 Stroker Heater with 3" Hose Vents and Switch Kit
Vented 3 Speed Motor For Quiet/Cool Operation. Heavy duty injection molded nylon construction.
Reviews
"Super product and it comes with the fan speed switch and name plate that I thought I might have to buy sepratly."
"Works great in my Sx."
"Good product for what I need."
"Good heater more BTU's than most."
"I installed this heater in my yamaha rhino and while it doesnt blow hot air like a vehicle it still kept me very comfortable in 15deg weather."
"The switch was the only issue I had, the directions to wire it was for some thing different than what I got."
"The heater has a 3 wire connector similar to a trailer plug. But the kit only had male and female spades, not the proper connector. While it would work OK if you are using it for interior heat blowing at your feet, don't expect it in any way to replace the original blower in your vehicle. I ended up snugging the hose into the outlets and used aluminum tape to hold it in place."
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