What size is the oil drain plug on a 6.7 Powerstroke?
The oil drain plug uses a 1/2-20 UNF thread with a copper washer, and the hex head typically requires a 14mm wrench. This is the most commonly cited specification for the 6.7L Power Stroke used in Ford F-Series diesel trucks.
Overview: the 6.7 Power Stroke and its oil pan
The 6.7L Power Stroke diesel has been a staple in Ford’s heavy-duty lineup since 2011. Its oil pan and drain system follow conventional diesel-engine practices, featuring a standard drain plug that can be cross-checked against Ford’s service information and parts catalogs. While variations can exist between model years or aftermarket pan designs, the 1/2-20 UNF thread with a copper washer is the widely referenced size for this engine family.
Thread size and hardware
In the context of routine maintenance and parts compatibility, the drain plug thread is commonly listed as 1/2-20 UNF, paired with a copper washer to seal against the oil pan. The plug head is typically sized for a 14mm wrench or socket, though some vehicles may differ slightly by year or pan manufacturer.
Head size and the tools you’ll likely need
Most service guides indicate a 14mm tool is appropriate for the drain plug head on the 6.7 Power Stroke. It’s always wise to verify by inspecting the plug in your specific vehicle or consulting the official Ford service manual if your truck has a non-standard pan.
What you’ll need to service the drain plug
Gathering the right parts and tools ahead of a drain-and-refill makes the process smoother. The following list covers the essentials you’ll typically use when addressing the oil drain plug on a 6.7 Power Stroke.
- 14mm socket or wrench
- Copper washer for the drain plug
- Oil drain pan to catch used oil
- New engine oil compatible with the 6.7L Power Stroke spec
- Torque wrench for reinstallation (to Ford’s recommended spec in the manual)
- Rags or shop towels for clean-up
Having these items on hand helps ensure a clean, leak-free oil change and protects the oil pan threads from damage during the service.
Step-by-step procedure (summary)
To perform the drain plug service properly, follow these general steps. The following list is intended as a quick reference and should be paired with your vehicle’s specific service instructions.
- Prepare the vehicle: park on a level surface, engage parking brake, and raise the front of the truck if needed to access the oil pan.
- Place the drain pan underneath the oil pan and remove the drain plug using a 14mm tool.
- Allow old oil to completely drain, then clean the drain plug recess and threads on the oil pan.
- Install a new copper washer on the drain plug, thread the plug back in by hand, and snug it with a wrench.
- Torque the drain plug to the manufacturer’s specification, typically found in Ford’s service manual or an official spec sheet.
- Refill with the correct amount and viscosity of engine oil, then start the engine and check for leaks around the drain plug.
- Dispose of used oil properly and reset any oil-change indicators if your vehicle is equipped with them.
Following these steps helps ensure a proper seal and keeps the engine oil system in good condition.
Variations and notes
While the 1/2-20 UNF thread with a copper washer is the commonly cited standard for the 6.7 Power Stroke, variations can exist due to aftermarket oil pans or different model years. If you encounter a plug that doesn’t fit the 14mm tool or a nonstandard washer, consult the vehicle’s service documentation or Ford dealership parts support to confirm the correct specification for your exact truck.
Summary
The oil drain plug on Ford’s 6.7L Power Stroke is widely described as a 1/2-20 UNF thread with a copper washer, and the head often requires a 14mm tool. Always verify against your specific vehicle’s manual or Ford’s official service information, especially if you have an aftermarket pan or a nonstandard drain plug. With the right parts and proper technique, a routine drain-and-refill can be completed efficiently and with minimal risk of leaks.
What size is the oil drain plug on a Ford f250?
The F-250 oil drain plug size is M14-1.5 thread with a 16mm or 5/8-inch head for most modern models from around 2011 to the present. Some older models, like a 1997 with a 7.3L diesel, use M14 x 1.25 with a 15mm or 19mm head, so it's essential to confirm your specific vehicle's requirements before purchasing.
Modern F-250s (approx. 2011+)
- Thread Size: M14-1.5
- Head Size: 16mm or 5/8"
Older F-250s (e.g., 1997 7.3L diesel)
- Thread Size: M14 x 1.25
- Head Size: 15mm or 19mm
Important considerations
- Always verify: The thread size can vary by year and engine type. Double-check the specific size for your F-250 before buying a new plug to ensure a proper fit.
- Consider a replacement: If you're replacing the plug, consider using a high-quality replacement or a drain valve for future oil changes, available at retailers like Amazon.
What size is the oil plug on a 2019 f250 Powerstroke?
Notes: Engine Oil Drain Plug. M14-1.5" Thread Size.
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 · Nov 1, 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
- 1. Check your owner's manual: This is the most reliable source for your specific car.
- 2. 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.
- 3. Visit an auto parts store: You can tell them your vehicle's make and model, and they can look up the correct size.
- 4. 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 is the oil plug on a 2017 Ford f350?
5/8 "
Dorman – Standard Engine Oil Drain Plug: M14-1.50 Thread, 5/8 " Head, 1 Pack (Part No. 090-937CD)
