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What size spark plug socket for Subaru Forester?

The recommended spark plug socket size for a Subaru Forester is 16mm. This socket size is necessary to properly remove and install the spark plugs on this popular SUV model.


Understanding Spark Plug Sockets


Spark plugs are a critical component of an internal combustion engine, and they require specialized tools to service. Spark plug sockets are designed with a hexagonal opening that fits snugly over the spark plug, allowing mechanics to easily remove and reinstall them. The socket size corresponds to the diameter of the spark plug, which can vary depending on the make and model of the vehicle.


Spark Plug Socket Size for Subaru Forester


The Subaru Forester, a compact SUV known for its reliability and all-wheel-drive capabilities, typically uses 16mm spark plugs. This means that a 16mm spark plug socket is the correct size to service the spark plugs on a Forester.


Using the proper 16mm socket ensures that the spark plugs can be removed and reinstalled without damage to the plug or the engine. Attempting to use the wrong size socket can lead to rounding out the spark plug, making it difficult or impossible to remove, and potentially causing further damage to the engine.


Tips for Changing Spark Plugs on a Subaru Forester



  • Always use a 16mm spark plug socket when servicing the spark plugs on a Subaru Forester.

  • Ensure the socket is in good condition and fits the spark plugs snugly to avoid rounding out the plugs.

  • Follow the manufacturer's recommended torque specifications when reinstalling the spark plugs to ensure a proper seal.

  • Regularly inspect and replace the spark plugs according to the Forester's maintenance schedule to maintain optimal engine performance.


By using the correct 16mm spark plug socket, Subaru Forester owners can safely and effectively service their vehicle's spark plugs, helping to ensure the engine runs smoothly and efficiently for years to come.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.