A 17mm socket is typically needed to remove the engine oil drain plug on the 2014 Honda Foreman 500, but always verify the plug head on your specific machine to avoid damage if an aftermarket plug has been fitted.
Understanding the Foreman 500 oil drain plug
The Foreman 500 uses a standard drain plug at the bottom of the engine crankcase. On most stock Honda ATVs of this era, the plug head is a hex bolt that accepts a 17mm socket. However, owners may encounter variations if the plug has been replaced with an aftermarket version, or if the head is damaged. Inspecting the plug head before you begin is the best way to confirm the correct tool.
Common head types and how to spot them
Stock Foreman 500 units typically use a hex-head plug compatible with a 17mm wrench. If the plug head appears different—such as a thinner flange, a smaller 14mm hex, or a Torx—do not force a fit. In those cases, identify the exact head type before attempting removal to avoid stripping the bolt or damaging the crankcase.
To help confirm the correct size, consider these checks before you wrench.
- Inspect the bolt head: A 17mm hex is common for stock plugs on this model. If the head looks non-standard, don’t assume it will fit a 17mm socket.
- Try the standard size first: Start with a 17mm socket and slowly attempt removal. If it binds, stop and re-check the head type rather than forcing it.
- Check the service manual: Honda’s maintenance manual or a reputable repair guide will confirm the exact drain plug size and any model-specific variations for your VIN.
- Consider potential replacements: If the plug was swapped for an aftermarket version, it may require a different tool such as a 14mm hex or a Torx bit. Verify before forcing.
Concluding: Using the correct socket protects the plug and the threads and reduces the risk of damage during an oil change.
Practical steps to remove and replace the oil drain plug
With the correct socket identified, follow these steps to safely drain and refill the engine oil. This section emphasizes listening for any unusual resistance and ensuring cleanliness to prevent contamination.
- Warm the engine briefly to help the oil flow, then place a drain pan beneath the plug.
- Fit a 17mm socket to the drain plug (or the correct size if you’ve confirmed a non-standard head) and slowly loosen counterclockwise.
- Let the oil drain completely from the crankcase, then remove the plug and wipe it clean.
- Inspect the sealing washer or gasket; replace if present or if damaged, and reinstall the plug with a light, even torque. Do not overtighten to avoid stripping the threads.
- Refill the engine with the recommended oil type and quantity per the owner’s manual, then check the level and for leaks after starting the engine.
If the plug is seized or the head is damaged, apply penetrating oil and give it time to soak, or consult a professional to avoid damaging the crankcase or stripping the bolt.
Where to find official specs
Refer to Honda’s official Foreman 500 service manual or the owner’s manual for the exact drain plug size, torque specification, oil type, and oil capacity for your trim (EPS, FI, or non-EPS variants). If in doubt, contact an authorized Honda dealer or a qualified technician to confirm the correct size and procedure for your specific machine.
Summary
The standard oil drain plug size for most 2014 Honda Foreman 500 models is a 17mm socket. Always verify the plug head on your machine, especially if aftermarket parts are present. Use the proper tool, follow Honda’s torque guidance, and maintain cleanliness to ensure a safe, effective oil change.