The engine oil drain plug on a 2019 Honda Accord uses an M14 x 1.5 thread with a 17 mm hex head for removal. This applies to both the 1.5-liter turbo and the 2.0-liter turbo engines commonly found in this model year. If you’ve altered parts or are working with a nonstandard plug, verify by checking the plug directly or the owner’s/service manual.
Understanding what the size covers
When people talk about a drain plug size, they’re usually referring to two things: the thread size that screws into the oil pan (M14 x 1.5 in this case) and the tool size required to loosen or tighten the plug (a 17 mm wrench or socket). The copper crush washer that seals the connection is a separate component but is typically replaced during an oil change to ensure a proper seal.
Engine options and where this applies
The 2019 Accord was offered with two turbocharged engines, both of which share the same oil drain plug characteristics for the engine oil pan. Markets outside North America may have variations, so it’s always best to confirm with the vehicle’s service data if you’re unsure or if a plug has been replaced with an aftermarket part.
Here are the essential size details you need to know for an oil change.
- Engine oil drain plug thread size: M14 x 1.5
- Drain plug hex head size: 17 mm
- Washer type: copper crush washer (often replaced with every oil change)
- Applicable to: 2019 Honda Accord with 1.5L turbo and 2.0L turbo engines
Concluding note: If you’re unsure about the plug in your specific car—perhaps due to aftermarket changes or a previous owner’s replacement—verify by inspecting the actual plug or consulting the official service manual for your VIN.
Practical tips for performing an oil change
Locating and preparing
Park on level ground, warm up the engine briefly, and place a drain pan under the oil pan. Locate the oil drain plug at the bottom of the oil pan and ensure you have a 17 mm socket or wrench ready, along with a copper crush washer replacement if needed.
What to do if the plug is difficult to remove
Use a steady, square-on grip with the 17 mm tool and apply penetrating oil if it’s stuck. Avoid using excessive force that could strip the head. If you suspect the plug has been over-tightened in the past, consider applying a torque-safe method and, if necessary, replace the plug and washer with OEM parts.
Summary
For a 2019 Honda Accord, the engine oil drain plug uses M14 x 1.5 threads and a 17 mm hex head. This applies to the common 1.5L and 2.0L turbo engines, with minor variations possible by market or aftermarket replacements. Always refer to the owner’s manual or service data for your exact vehicle and VIN, and replace the copper washer with every oil change.