The engine oil drain plug on most 2016 Honda Accord models uses a 14 mm socket and M14 x 1.5 thread. This size covers the common engines in that year, but variations can occur with different transmissions or special editions. Always verify by inspecting the plug or consulting the vehicle’s service manual.
Engine oil drain plug: size and tools
Here are the typical specifications and tools you’ll need when performing an oil change on a 2016 Accord.
- Socket size: 14 mm (the hex head on the drain plug is typically 14 mm)
- Thread size: M14 x 1.5
- Washer: copper or aluminum crush washer is usually recommended to seal properly
- Tooling and procedure: use a 14 mm socket or wrench to loosen and tighten; replace the washer on reinstallation; refer to the torque specification in the manual
In short, you will generally need a 14 mm socket and a new crush washer when performing an oil change on a 2016 Accord, regardless of engine variant.
Other drain plugs you may encounter
Beyond the engine oil pan, the Accord has other service drain plugs (transmission, coolant, etc.) that can differ in size and head type. Sizes are not interchangeable, and using the wrong tool can damage fasteners or seals. Always consult the right sections of the service manual for your exact VIN and engine/transmission configuration.
Transmission and coolant drains
If you’re planning a transmission fluid drain or cooling system drain, the plug sizes and socket types vary by engine and transmission combination. Get the correct size before starting—your owner's manual or service manual lists the exact specifications for your configuration.
How to confirm the right size on your specific car
To be certain, you can:
- Check the owner’s manual under Maintenance or Engine Oil section for the drain plug size and torque spec
- Inspect the existing drain plug and measure the head size with a gauge or by matching a socket
- Ask a Honda dealer or a trusted mechanic with your car’s VIN for the exact specification
Ensuring you have the correct plug size helps prevent stripping the plug or damaging the oil pan during an oil change.
Summary
For a 2016 Honda Accord, the engine oil drain plug typically uses a 14 mm socket and M14 x 1.5 thread, with a copper crush washer. If you have questions about other drains—transmission or coolant—refer to the service manual or dealer for the precise sizes, as they vary by engine and transmission configuration. Always verify before performing maintenance to avoid damage.