What size wrench for Honda Accord oil drain plug?
A 17mm wrench is the standard size for removing the oil drain plug on most Honda Accord models. Some older or uncommon configurations may use a different size, so verify your specific year and engine before you loosen anything.
Context: why the size varies
The oil drain plug is a simple hex bolt on the bottom of the engine's oil pan. While the basic task is the same across most Accords, the head size of the plug can vary with engine code and vintage. Using the wrong size can strip the head or leak oil, so getting the right tool matters for a safe, leak-free oil change.
Typical scenario: 17mm is standard
For the vast majority of late-model Honda Accords (and many of their 4‑cyl and V6 engines), the drain plug head accepts a 17mm hex. You should be able to loosen and re-tighten the plug with a 17mm socket, box-end wrench, or a wrench that fits a 17mm hex.
When a different size might occur
On a very small subset of older or non-standard configurations, a 14mm head may appear. If you try 17mm and it doesn’t fit, inspect the plug head carefully, compare with a fresh 17mm tool, and consult the owner's manual or a service guide for your exact year and engine code before forcing anything.
Practical quick reference
To help you prepare, here is a quick reference for the typical sizes and how to confirm them on your Accord:
- Standard on most modern Accords: 17mm hex head (socket or box-end wrench).
- Possible alternative to check only if 17mm does not fit: 14mm hex head.
- Always verify with the vehicle’s manual or a trusted repair guide for your exact model/year before attempting to loosen the plug.
Bottom line: in most cases, grab a 17mm wrench or socket for the oil drain plug on a Honda Accord, and verify if you’re dealing with an older or special engine configuration.
Additional tips for a smooth oil change
Beyond the wrench size, prepare for a clean and safe oil change: have a drain pan, the correct oil grade, a new washer if your plug uses one, and a torque spec for reinstalling the drain plug as outlined in your manual. If the plug head is damaged or the plug won’t loosen, stop and seek professional help to avoid stripping the pan or causing an oil leak.
Summary
For most Honda Accord oil changes, the right wrench size is 17mm. This is true for many late-1990s to present models across multiple engines. If your Accord is from an older generation or has a nonstandard plug, verify with the owner’s manual or service guide to avoid damage. Being prepared with the correct tool ensures a safe, efficient oil change and helps prevent leaks or stripped hardware.
