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What size is the drain plug on a 2015 Ford f150?

The oil pan drain plug on most 2015 Ford F-150s uses a 14 mm hex head (socket size) with a standard metric thread, typically M14 x 1.5. Always confirm for your exact engine family in the owner’s or service manual.

Understanding the drain plug size

This article focuses on the oil pan drain plug—the part most owners need to remove during an oil change. The size consists of two parts: the head that takes a tool (socket) and the thread that screws into the oil pan. For the 2015 F-150, the common configuration is a 14 mm head and a metric thread around M14 x 1.5, though there can be engine-specific variations.

To help you navigate tool selection and avoid damage, here are the most frequently encountered specifications for the oil pan drain plug on these trucks:

Head size: 14 mm hex (socket size) for removal with a 14 mm wrench or socket

Thread size: typically M14 x 1.5, which matches the oil pan thread in many engines

Note: Some early or alternative engine variants may differ; consult the service manual for your exact build

Concluding: The standard oil pan drain plug on a 2015 F-150 commonly uses a 14 mm head and an M14 x 1.5 thread, but engine-specific variations can occur. Verify on your vehicle if you’re unsure.

How to verify the exact size on your truck

To ensure you have the precise specification for your vehicle, identify your engine code and check the official maintenance documentation. A quick hands-on check of the plug can also prevent tool mismatches before you drain the oil.

Identify your engine type (2.7L EcoBoost, 3.5L EcoBoost, or 5.0L V8) to match the correct maintenance data

Inspect the drain plug head with a 14 mm socket to confirm it fits snugly

If in doubt, measure the thread pitch or consult the service manual for the exact specification

Concluding: By confirming the engine variant and referencing the manual, you can be confident that the plug size—commonly 14 mm head with M14 x 1.5 threading—applies to your 2015 Ford F-150.

Summary

For most 2015 Ford F-150s, the oil pan drain plug is a 14 mm hex head with an M14 x 1.5 thread. Always verify the exact size for your specific engine by consulting the owner's manual or the factory service information before performing an oil change.

What size is the oil drain plug on a 2015 Ford F150?

The 2015 F-150 oil drain plug has a standard thread size of M12-1.75 and typically uses a 15mm socket. Some sources may also mention a 7/8-inch thread, but M12-1.75 is the correct metric thread size that many replacement parts use, including Ford's official replacement part.

Thread size: M12-1.75
Socket size: 15mm
Replacement parts: Many aftermarket and OEM replacements use this size, such as Dorman 090-175 or Ford's replacement part.
Other variations: Some earlier models or specific part replacements may have different thread sizes, but the M12-1.75 is the standard for a 2015 F-150.

What size socket is the drain plug on a 5.7 Hemi?

13-millimeter socket
Once the oil is drained, reinstall the drain plug, threading it in a clockwise direction. Using a 13-millimeter socket and torque wrench, tighten the drain plug.

What size socket is the oil drain plug?

There is no single socket size for all oil drain plugs, as it varies by vehicle, but common metric sizes are 13mm, 14mm, 15mm, 17mm, and 19mm. To find the correct size, check your vehicle's owner's manual or a set of assorted metric sockets if unsure.
This video shows how to use different tools to remove an oil drain plug: 1mOn The WorkbenchYouTube · Oct 31, 2024
Common sizes

Metric: The most common sizes for passenger vehicles are between 13mm and 17mm.
SAE: Some older or specialty vehicles may use SAE (inch) sizes, which are often fractional (e.g., 3/8" or 1/2").
Specialty: Some plugs might have a square opening, a hex (Allen/Allen key), or a Torx (star) shape instead of a traditional bolt head.

How to find the right size

Check your owner's manual: This is the most reliable source for your specific car.
Use a socket set: Start with common sizes like 13mm, 14mm, 15mm, and 17mm. A 6-point socket is best as it grips the bolt head more securely.
Visit an auto parts store: You can tell them your vehicle's make and model, and they can look up the correct size.
Try a universal set: If you frequently change the oil, consider buying a specialized oil drain plug socket set that includes common metric and SAE sizes.

This video explains the importance of using the correct tool to remove an oil drain plug: 1mYour Home GarageYouTube · Nov 24, 2022

What size socket for oil drain plug Ford F150?

The F-150 oil drain plug socket size is typically 15mm for many models, but can also be 16mm depending on the year and engine. Some later models, particularly those with the 3.5L EcoBoost engine, may have a plastic drain plug that requires pliers or an 8mm socket to remove the underbody shield first.

Socket Size	Year/Engine	Other Tools Needed
15mm	Many models, including 2017	3/8" ratchet, possibly a 3-inch extension
16mm	Older models like the 5.4L V8 from 2009-2014	3/8" ratchet, possibly a 3-inch extension
Pliers or 8mm socket	Some newer models with a plastic drain plug and underbody shield	8mm socket, plastic pry tool, or pliers

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.