What size socket fits a 14mm spark plug?
When it comes to maintaining or replacing spark plugs in your vehicle, having the right tools is essential. One of the most common questions we encounter at Kevin's Autos is: "What size socket do I need for a 14mm spark plug?" This guide will provide you with a clear and detailed answer to ensure your next spark plug replacement goes smoothly.
Understanding Spark Plug Sizes
Spark plugs come in various sizes, and the "14mm" in this case refers to the thread diameter of the spark plug. However, the socket size required to remove or install the spark plug is determined by the hex size of the plug, not the thread diameter. For most 14mm spark plugs, the hex size is either 5/8 inch (16mm) or 13/16 inch (21mm).
Socket Size for a 14mm Spark Plug
To determine the correct socket size for your 14mm spark plug, you need to check the hex size of the specific spark plug you are working with. Here are the two most common options:
- 5/8 inch (16mm): This is the most common socket size for 14mm spark plugs, especially in modern vehicles.
- 13/16 inch (21mm): This size is less common but may still be used for certain older or specialized vehicles.
It’s always a good idea to double-check the specifications of your spark plug or consult your vehicle’s owner manual to confirm the correct socket size.
Tips for Using a Spark Plug Socket
When working with spark plugs, using the right tools and techniques can make the job easier and prevent damage to your engine. Here are some tips:
- Use a dedicated spark plug socket, which typically includes a rubber insert or magnet to securely hold the spark plug.
- Ensure your socket is attached to a ratchet with an extension for easier access to deep-set spark plugs.
- Apply anti-seize compound to the spark plug threads to prevent them from sticking in the cylinder head.
- Always hand-tighten the spark plug first to avoid cross-threading, then use a torque wrench to tighten it to the manufacturer’s specifications.
By following these tips, you can ensure a smooth and successful spark plug replacement process.
Conclusion
In summary, the socket size for a 14mm spark plug is typically 5/8 inch (16mm) or, less commonly, 13/16 inch (21mm). Always verify the hex size of your specific spark plug to ensure you have the correct socket. At Kevin's Autos, we’re here to help with all your car maintenance needs, so don’t hesitate to reach out if you have any questions or need assistance with your vehicle!
Frequently Asked Questions
What size drill bit for a 14mm?
| Drill Bit Size Chart | ||
|---|---|---|
| 0.2 mm | 0.0079 | 17/32 in |
| #92 | 0.0079 | 13.5 mm |
| #91 | 0.0083 | 35/64 in |
| #90 | 0.0087 | 14 mm |
What are the two spark plug socket sizes?
The most common spark plug socket sizes are 5/8 inches and 13/16 inches.
What is M14 spark plug?
"M14 x 1.25" is the physical description of the threaded portion of the spark plug. The nominal diameter is 14 millimeters (about 9/16"), and the pitch* is 1.25 mm (~. 05"). Pitch is the distance between two adjacent thread crests - the distance the plug moves into the cylinder head for each turn of the plug.
What size socket do I need to remove a spark plug?
Most spark plugs require a 5/8" (16mm) size spark plug socket. This refers to the size of the flats on the spark plug that are in contact with the socket.
What is the same size as a 14mm socket?
Socket Wrench Size Chart
| Bolt Diameter | Metric | Standard |
|---|---|---|
| 3/8″ | 14mm | 9/16″ |
| 7/16″ | 16mm | 5/8″ |
| 1/2″ | 19mm | 3/4″ |
| 9/16″ | 21mm | 13/16″ |
What size drill bit for 14mm spark plug?
14 mm x 1.25 pitch (spark plug) use 15/32" or 12 mm drill bit.
Are all spark plugs 14mm?
Spark plug hex sizes are standard metric. 18, 16, 14, bihex 14, and 12mm. 16 and 14 are most common. Bihex 14 found more often on European engines while 10 are usually reserved for small and low powered engines like in Japanese kei cars.
What size is a 14mm spark plug hex?
Size: 14mm Bi-Hex (12pt) x 3/8"D x 65mm long. Outside diameter: 17.88mm; inside depth: 61.7mm.
What are the 2 common spark plug socket sizes?
While 5/8" (16mm) and 13/16" are the two most common plug hex sizes, plugs can have a hex as small as 8mm or larger than 1". If you're a tuner or engine builder in search of the perfect spark plug for your current project, pay special attention to the hex size required.
What size socket for 14mm spark plug?
These plugs must be removed with a thin wall 12 point 14mm socket. Spark plug sockets have a magnet or a rubber sleeve that grips the plug, helping you pull it out of the head. If you don't have one handy, you can loosen the plug with a deep well socket, then use a magnet to lift the plug out of the plug well.
