The 5 Best diesel truck block Heater extension cords (2023 reviews)

It is important to have the well suited diesel truck block heater extension cord. In the following post, we will help you to select the best diesel truck block heater extension cords.

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Our Top Picks:

Best Overall: Buy: NOCO diesel truck block Heater extension cord READ REVIEW

Best For its intended purpose: Buy: Zerostart OEM cord READ REVIEW

Best For MANY others: Buy: Kat'S diesel truck block Heater extension cord READ REVIEW

Best For each individual Engine application: Buy: Zerostart diesel truck block Heater extension cord READ REVIEW

Best with standard extension cord: Buy: BMI diesel truck block Heater extension cord READ REVIEW

Best Overall: NOCO diesel truck block Heater extension cord

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The noco diesel truck block heater extension cord is long-lasting, rigid and fits well with your daily purpose like a dream. This is essentially a heavy-duty extension cord that mounts to a bulkhead or other surface to make plugging up the Gen2 easier. Cleverly designed it promises years of use and is a must for any garage. It makes it look professional and clean.

The GCP1 is a port that will allow easy plug-in for an extension cord to connect to a device you may have installed on your vehicle, such as an onboard battery charger or a block heater. The rubber plug has many ridges to assure a water tight seal. It is very easy to install, and also easy to weather proof. The waterproof seal keeps moisture out and provides a nice finish look when closed. It's great build quality.

• Heavy duty plug and keeps things clean
• Easy to mount and install, looks great too
• Great heavy duty waterproof socket for onboard battery charger

Best For its intended purpose: Zerostart OEM cord

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The zerostart oem cord's material feels more premium than its price would suggest. This cord is an exact match helping to get the 8v92T started in cool weather. It is ideal for ford, mercury, lincoln, international, caterpillar, detroit diesel, hino, mack, nissan. It measures slightly shorter than the oem motorcraft part. It includes all new wire shields and loom. It maintains optimum temperature to any metallic surface.

This cord will fit a 6.0 with a zero start block heater. It comes with a male plug and female connector, receptacle/gasket, chrome plated, 4-hole, 2.5” square. It is easy to install and has worked with no issues.

• Plenty of cord and easy install
• Excellent replacement of broken or damaged oem block heater cord
• Good investment for long term

Best For MANY others: Kat'S diesel truck block Heater extension cord

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The kat's diesel truck block heater extension cord might be a relatively new release, but it's still nothing short of impressive this year, thanks to multiple price cuts and added new features over the past few months. It has definitely done its job during these super frigid temps. It simply plugs in to the element and has a screw down locking collar. There is just enough cord to reach the front bumper. The cord connects and the heater works. It is a two pin plug into the heater element. It keeps the engine at about 120* degrees. The cord is long enough to replace the OEM one and looks to be well made. It is a perfect fit, installed exactly as designed.

• Relatively easy to install as the heater comes pre-installed on all late-model ram diesels
• Slightly thinner gauge cord as well
• Works great with a 7.3 excrusion

Best For each individual Engine application: Zerostart diesel truck block Heater extension cord

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate cord. The zerostart diesel truck block heater extension cord is exactly that - it's a simple cord that hits all the right notes. This heat element is for heating a diesel truck motor, but it gets way too hot to be an oil heater. It can be used in fiat based diesel tractors. It is easy to install, and instructions that come with it are very good.

This block heater fits perfectly and works very well. It is designed to work with 7.3l powerstroke engines from ford or international. The cord it comes with is the correct length to reach the front of the vehicle. It takes about 4 hours to get the engine warm. Several types of engine block heaters are available to meet your specific needs, including freeze plug heaters, threaded immersion heaters, plate-style heaters and cartridge heaters.

• Fit perfectly, cord could use 2 more feet
• Heats up well and on its second winter of use
• Works good, cord is slightly longer than original which is good
• Easy to install but still have to drain your coolant

Best with standard extension cord: BMI diesel truck block Heater extension cord

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Bmi makes beautiful and great cord with classic and smartly choosen materials. There is a block heater controller called The Power Badger that is a great thermostatically controlled device for block heaters. It works with a standard extension cord. Zip ties make it easy, and it looks great. If your Ram has the Cummins diesel engine, this cord will fit. It stays on until you unplug it from the extension cord.

This item fits perfect and works well. If it is a simple install, the cord does not get warm when plugged in, installation will be easier if oil filter is removed. It is great to aid in starting a block heater controller called The Power Badger that is a great thermostatically controlled device for block heaters.

• Easy to connect and works with a standard extension cord
• Good investment for long term