The 6 Best Diesel Block Heater cords (2023 reviews)

Compared with other cord in this category, the bmi power cord has a design with broader appeal. This cord provides power to that factory installed block heater. It fits all the Cummins engines. It is long enough to be routed correctly. It is made for easier routing. There is some extra cord so you have plenty to route it to the front of the truck. It is located on the forward right underside of the engine block. It will help go on a lot easier.

Why We Like This:

Works flawlessly on cold mornings for helping the truck heat up
Easy installation takes maybe 30 minutes
Easy to install, availability and quick to ship

Best Quality Product: BMI Diesel Block Heater Cord

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It works well and has a thicker cord than stock. It is great as replacement power cord for up to 1500w diesel block heaters. It fits right, works well, and works great as replacement for old and worn out cords. This is super easy to install, and works great.

Why We Like This:

Very simple installation, plug and play
Great replacement for old and worn out cords
High quality rubber for long life and flexability in the cold

Best With Block Heater: Zerostart Heater Cord

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If you often find yourself confused about appropriate and satisfactory cord, zerostart heater cord should be your first option for buying. You can maximize your uptime with innovative heating solutions. It comes with zerostart so you can maximize your uptime with innovative heating solutions. It is made of a flexible rubber, and presses onto the block heater receptacle, and seals the contacts from salt/water from the outside. It is visible from 50’ (15 m) to monitor from a distance.

There is JUST enough cable to route to the grille/bumper on the front of the truck, with about 1'-1.5' of extra slack. The plug is a 90 degree end not straight like the original and the cord is a foot shorter so you have to take a different route. It works perfect and is easy to install.

Why We Like This:

Single cord with male plug and female silicone connector
Perfect fit for duramax lb7 diesel
Include standard and weatherproof (wp) male plugs

Best For You: Zerostart Diesel Block Heater Cord

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The zerostart diesel block heater cord is capable of outshining several other cord featured in this list in overall features for the price point. This model 8608652 is designed for the heavy duty applications that use the Zerostart weatherproof plug receptacle. It fits 120V plugs and keeps plug contacts clean for optimum power and safety. The button locks the plug in the housing that it slides into and is mounted on the truck. It is visible from 50’ (15 m) to monitor from a distance.

These Zerostart heavy duty weatherproof cordsets include a single heavy duty cord with weatherproof male plug and silicone female connector. The cord is heavy duty and remains very pliable at the truck. The Lit plugs show a visible led light when power is being supplied to the engine block heater. It has a Cummins ISX engine. It fits 120v plugs and keeps plug contacts clean for optimum power and safety.

Why We Like This:

Single cord with male plug and female silicone connector
Include standard and weatherproof (wp) male plugs
A must have for cold weather

Best For Engine Block: ZTUOAUMA Diesel Block Heater Cord

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The ztuoauma diesel block heater cord is capable of outshining several other cord featured in this list in overall features in its price range. It is compatible with ford 7.3 6.0 6.4 6.7 l powerstroke diesel engines f350 250 f. It is covered with rubber material, the plug is made of stainless steel, providing better heating function and isolation for humanity. It is made of stainless steel, with great conductivity and with more exact dimension to fit oem engine block heaters, not east to fall down, better heating function.

Why We Like This:

Good investment for long term
Delivers what they promise

Best With thermostat: Outspot Diesel Block Heater Cord

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Next on the list, we've got yet another cord that manages to win our hearts. It's the outspot diesel block heater cord and it's widely considered as one of the best convenient cord you can buy.

Why We Like This:

New top quality heavy gauge block heater cord
Delivers what they promise