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Subaru WRX Spark Plug Socket Size Guide

    Subaru WRX Spark Plug Socket Size

    Overview

    If you own a Subaru WRX and are planning to change the spark plugs yourself, it’s important to know the correct socket size to use. The spark plug socket size refers to the diameter of the socket that fits over the spark plug, allowing you to remove and install it properly. In this article, we will provide you with the necessary information about the spark plug socket size for Subaru WRX.

    Spark Plug Socket Size Chart

    To make it easier for you to find the right spark plug socket size for your Subaru WRX, refer to the following chart:

    Year Model Spark Plug Socket Size
    2002-2005 WRX 5/8″ (16mm)
    2006-2014 WRX 9/16″ (14mm)
    2015-2022 WRX 5/8″ (16mm)

    Step-by-Step Guide

    If you’re ready to change the spark plugs in your Subaru WRX, follow these steps:

    1. Start by ensuring that the engine is cool to avoid any burns.
    2. Open the hood of your Subaru WRX and locate the spark plug wires.
    3. Remove the spark plug wire from the first spark plug by firmly pulling it straight off.
    4. Using the appropriate spark plug socket size from the chart, attach it to a ratchet or extension.
    5. Place the socket over the spark plug and turn it counterclockwise to loosen and remove the old spark plug.
    6. Inspect the spark plug for any signs of damage or wear. If necessary, replace it with a new one of the same size and type.
    7. Apply a small amount of anti-seize compound to the threads of the new spark plug to prevent it from seizing in the future.
    8. Insert the new spark plug into the socket and carefully thread it into the spark plug hole by hand to avoid cross-threading.
    9. Tighten the spark plug using the socket and ratchet, turning it clockwise until it is snug.
    10. Reattach the spark plug wire to the spark plug by pushing it firmly until it clicks into place.
    11. Repeat the above steps for each spark plug in your Subaru WRX.

    Conclusion

    Knowing the correct spark plug socket size for your Subaru WRX is essential when performing maintenance tasks like changing spark plugs. By following the provided chart and step-by-step guide, you can confidently replace the spark plugs in your Subaru WRX and ensure optimal engine performance. Remember to always consult your vehicle’s manual or seek professional assistance if you have any doubts or concerns.