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What size is the drain plug on a 2008 Honda Accord?

The oil drain plug on a 2008 Honda Accord uses a metric M14 x 1.5 thread and is typically loosened or tightened with a 14mm socket. This sizing generally covers the two main engines offered that year—the 2.4-liter inline-four and the 3.0-liter V6.


Engine options and drain plug basics


For maintenance, it helps to know which engines were available in the 2008 Accord and what that means for drain plug compatibility. Both the 2.4L I4 and the 3.0L V6 share the same drain plug thread specification, simplifying oil-change procedures across most trims.


Before listing the key details, note the following points that commonly apply to the drain plug on these engines.



  • Thread size: M14 x 1.5 (metric coarse thread)

  • Socket size to loosen/tighten: 14mm

  • Crush washer/gasket: replace with a new washer when reinstalling

  • Applicable to both the 2.4L I4 and the 3.0L V6 engines in the 2008 Accord


In short, the 2008 Accord's oil drain plug is standardized for this model year, making it easier to perform routine oil changes without hunting for different plug sizes across trims.


How to verify the right size for your specific car


If you want to double-check your particular vehicle, use these steps to confirm the compatible drain plug size and components before an oil change.



  • Consult the owner's manual or a Honda service manual for the exact specification

  • Inspect the drain plug on the oil pan for the threaded portion and compare with M14 x 1.5 references

  • When in doubt, remove the plug carefully and measure the thread pitch and diameter or bring the plug to a parts counter for matching

  • Inspect or replace the crush washer with a new one to ensure a proper seal


Following these steps helps ensure you don’t use an incorrect size or damage the oil pan threads during maintenance.


Additional maintenance considerations


Beyond the plug size, a few routine practices help ensure a clean, leak-free oil-change experience on the 2008 Accord.



  • Use the recommended oil viscosity for the engine and climate (typically 5W-20 or 0W-20 in many Hondas of this era)

  • Always replace the drain plug washer or gasket when reinstalling the plug

  • Torque the drain plug to the manufacturer’s specification to avoid over-tightening or leaks


These considerations support a reliable seal and optimal engine lubrication during service.


Summary: For a 2008 Honda Accord, the oil drain plug generally uses an M14 x 1.5 thread and a 14mm wrench. This applies to both the 2.4L I4 and the 3.0L V6 engines. Always replace the crush washer and torque to the manufacturer’s specification, and consult the manual or a dealer if you’re unsure about your specific trim or engine variant.

What size wrench for Honda Accord drain plug?


17mm wrench
EASY TO INSTALL - Includes an aluminum crush washer for simple installation with a 17mm wrench.



What size socket do I need for a drain plug?


There is no universal drain plug socket size, as it varies by vehicle make and model. Common sizes include metric sizes like 14mm, 15mm, and 17mm, as well as SAE sizes like 3/8" and 9/16". To find the correct size, check your vehicle's owner's manual, but it is recommended to have a set with both SAE and metric sockets to cover the most common sizes.
 
This video demonstrates how to find the correct size for your oil drain plug: 55s1A Auto: Repair Tips & Secrets Only Mechanics KnowYouTube · Feb 16, 2024
Common sizes

  • Metric: 10mm, 14mm, 15mm, 17mm, 19mm, 21mm 
  • SAE: 3/8 inch, 9/16 inch 
  • Square drive: Some plugs, especially on gearboxes, may require a square drive, such as an 8mm square socket 

What to do
  • Check the owner's manual: This is the most reliable way to determine the correct size for your specific vehicle. 
  • Get a socket set: Purchase a socket set that includes a range of both metric and SAE sizes. This will cover the most common sizes you might encounter. 
  • Use the right tool: A 6-point socket is often recommended for drain plugs to provide better grip and prevent stripping the plug, especially if it's overtightened. 



What size socket for 2007 Honda Accord oil drain plug?


And place your drain pan under the oil drain plug. Use a ratchet and 17 mm socket to loosen that drain plug remove the drain plug the rest of the way by hand. And let the oil drain. Once the oil slows



What size is the drain plug on a Honda Accord?


The oil drain plug for a Honda Accord is typically M14 x 1.50mm with a 17mm hex head, though some specific models or aftermarket plugs may have a different head size like 16mm. The most accurate way to confirm the correct size for your specific year and model is to check the part number or consult your owner's manual.
 
Drain plug specifications

  • Thread size: M14 x 1.50mm 
  • Head size: Typically a 17mm hex head, but may vary depending on the model year and whether it's an original or aftermarket part. 
  • Confirm your size: Always verify the correct size for your vehicle before purchasing a replacement plug. 


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.