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What size is the fill plug on a Tacoma transmission?

The fill plug on a Toyota Tacoma transmission is typically a 3/8-inch plug. This size is standard across most Tacoma models and transmission types, allowing for easy access and maintenance of the transmission fluid.


Understanding the Tacoma Transmission Fill Plug


The fill plug on a Tacoma transmission serves an important purpose. It provides a way to check the transmission fluid level and add more fluid if necessary. The plug is located on the side of the transmission housing, making it easily accessible for routine maintenance.


The size of the fill plug is crucial, as it needs to be the right fit to ensure a secure seal and prevent leaks. Toyota has standardized the fill plug size across Tacoma models to make it easier for owners and mechanics to service the transmission.


Checking and Maintaining Tacoma Transmission Fluid


To check the transmission fluid level on a Tacoma, you'll need to locate the fill plug, typically on the driver's side of the transmission. Here are the steps to properly check and maintain the fluid level:



  • Park the Tacoma on a level surface and apply the parking brake.

  • Locate the 3/8-inch fill plug on the side of the transmission housing.

  • Using the appropriate wrench or socket, carefully remove the fill plug.

  • Check the fluid level - it should be just below the bottom of the fill plug hole.

  • If the fluid level is low, add the recommended transmission fluid through the fill plug hole until it starts to drip out.

  • Replace the fill plug and tighten it securely.


Regularly checking and maintaining the transmission fluid level is crucial for the long-term health and performance of your Tacoma's transmission. Consult your owner's manual for the recommended fluid type and change interval.

What size is the drain plug for transmission?


There is no single size for a transmission drain plug; the size varies significantly depending on the vehicle's make and model, with common sizes including M12-1.75, M14-1.50, and 15/16 inch. To find the correct size, you must check your vehicle's owner's manual, look up the part number for your specific car, or visually inspect the plug and match it to the correct socket size.
 
You can watch this video to learn how to remove the transmission drain plug of your vehicle: 43sHow To Escape: DIY, Tips, and ReviewsYouTube · Oct 8, 2020

  • Common sizes: Some common drain plug sizes include M12-1.75, M14-1.50, and 15/16 inch, O'Reilly Auto Parts, Dorman Products, Amazon.com, and Amazon.com. 
  • Metric vs. SAE: Many modern vehicles use metric sizes like M14-1.50, while older vehicles may use standard (SAE) sizes like 15/16 inch, Amazon.com and K Series Parts. 
  • Other common sizes: Other less common but still used sizes include M10-1.50, M18-1.50, and others, Amazon.com and Amazon.com. 
  • How to be sure: The most reliable way to know is to check the owner's manual, look for the part number, or go to an auto parts store that can look up the correct size for your specific car. 



What size socket is a Toyota diff plug?


24mm socket
The tool is an adapter which allows you to use a 24mm socket or ring spanner to remove the plug. One side of the tool has a 24mm hex and the other side has a slightly oversize 10mm hex which is designed to fit snuggly into the Toyota hex plug.



What size is the transmission plug washer on a Honda?


18mm
Honda Genuine OEM Automatic Transmission Drain Plug Washers (18mm), Bag of 5-90471-PX4-000.



What size is the drain plug on a Toyota Tacoma?


The Toyota Tacoma oil drain plug has a M12 x 1.25 thread size and requires a 14mm socket or wrench. This applies to most Tacoma models, including the 2005–2014 and 2015+ generations, although it's always best to check the owner's manual or your vehicle's oil cap for the correct information.
 
Details

  • Thread Size: M12 x 1.25
  • Socket/Wrench Size: 14mm
  • Note: Always replace the crush washer when you change the oil to ensure a proper seal. 


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.