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Summary
  • The location of the engine block heater depends on your vehicle’s type of heater. For example, an oil pan heater is typically on the oil pan, while a bolt-on heater is directly connected to the exterior of your engine block.
  • The block heater warms parts of the engine and the motor oil while the vehicle is parked.
  • To access the block heater, you usually have to unplug its power cord from the electric power outlet first.

Q: Where Is the Block Heater Typically Located?

A: The location of the engine block heater depends on the type of heater. For example, an oil pan heater is typically on the oil pan, while a bolt-on heater is directly connected to the exterior of your engine block.

automotive block heater image
Some block heaters are heating elements that take the place of one of the engine block expansion plugs (see photo). | Image Source: Richard McCuistian

The block heater warms parts of the engine and the motor oil while the vehicle is parked.

Block heaters are helpful during the winter months when it’s difficult to start the vehicle. The struggle occurs because the engine takes more time to reach its optimal temperature and the cold makes the motor oil more viscous.

Tips on How to Access the Block Heater

The block heater usually comes with a power cord that plugs into an outlet designated for the heater. So you can simply plug or unplug the power cord from the electric power outlet. Depending on the heater, you might need to remove a protective cap.

The exact steps on how to access the block heater depend on your vehicle and its heater type. If it’s a factory-installed block heater, you can use your owner’s manual for the process. You can follow the plug and cord into the engine compartment and you should be able to find the heater this way.

On the other hand, if you’re trying to install or remove an aftermarket block heater, make sure to read its installation guide thoroughly starting.

About The Authors
Written By Automotive and Tech Writers

The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.

Reviewed By Technical Reviewer at CarParts.com

Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.

File Under : Engine , DIY
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