The oil drain plug on most Ram 1500 trucks uses a 14mm socket. This size fits the vast majority of modern Ram 1500 engines.
There are exceptions depending on model year and engine option, so it’s possible to encounter a 13mm on older or less common configurations. If in doubt, verify by inspecting the plug head, consulting the owner's manual or service manual, and testing sockets carefully to avoid stripping the hex.
Common sizes and how to confirm
To determine the exact size for your specific Ram 1500, follow these steps:
- Look at the drain plug head to identify its hex size visually and by feel; the most common are 14mm and 13mm.
- Begin with a 14mm socket, preferably a 6-point socket for a snug, less-slip grip on the plug.
- If the 14mm doesn’t fit or feels loose, try a 13mm socket carefully to avoid rounding the head.
- If neither size fits or you see damage to the plug head, replace the plug or consult a professional for the correct size and replacement hardware.
Following these steps helps ensure you use the correct socket without damaging the drain plug or oil pan.
Notes by engine and model year
In practice, modern Ram 1500s with common engines (such as the 5.7L Hemi and the 3.6L Pentastar) typically use a 14mm drain plug. Some older or less common configurations may require a different size (often 13mm). Always confirm for your specific vehicle by checking the owner's manual or examining the plug itself before loosening.
Practical tips for changing the oil drain plug
When performing an oil change, consider these pointers to avoid damage and leaks:
- Ensure the vehicle is on a level surface and the engine is cool before starting.
- Use a clean drain pan and replace the crush washer if your plug uses one.
- Loosen the drain plug gradually to control the flow of oil, then remove fully by hand to prevent cross-threading.
- Inspect the drain plug threads for wear; replace if damaged to maintain a proper seal.
By following these guidelines, you can successfully complete an oil change on a Ram 1500 without socket-fit issues or leaks.
Summary
The typical socket size for the Ram 1500 oil drain plug is 14mm, covering most modern engines. Always verify for your specific model year and engine, as some older configurations may use 13mm. When in doubt, check the owner's manual or inspect the plug head before removing it, and use a properly fitting socket to prevent damage. Regular maintenance with the correct tools ensures a clean drain and a reliable seal.