What size socket for lug nuts on a Ford Fusion?
The typical lug nut size for a Ford Fusion is 21mm across flats (13/16 inch).
For most model years—from the mid-2000s Fusion through the 2020 model run—the lug nuts use this size. Variations can occur if you have aftermarket wheels, a spare, or a special trim. To be certain, measure the lug nut across flats, check the owner's manual, or consult a Ford dealer or a trusted parts catalog.
What to know about your specific Fusion
While 21mm is standard, wheel hardware can vary by year, trim, or aftermarket wheels. Confirm the size on your exact vehicle before purchasing a socket or attempting a wheel change.
How to confirm the correct size
Use these steps to verify the size on your car:
- Inspect a lug nut for any size stamping (not all nuts are marked).
- Measure across the flats of a lug nut with a caliper or ruler to identify the size in millimeters (21mm is common for Ford Fusions).
- Consult your owner's manual or Ford's official parts catalog for the exact lug-nut size by model year and trim.
- If in doubt, try a socket in 21mm first, then test a slightly smaller/bigger size if it does not fit snugly.
Using the correct size helps prevent damaging the nut, wheel studs, or lug wrench and ensures safe removal and reinstallation. When using power tools, keep steady pressure and avoid impact that could slip or strip the nut.
Additional tips: torque and safety
After securing the wheel, torque the lug nuts to the specification in your owner's manual, typically around 100 ft-lb (135 Nm) for most Fusion models, and re-torque after the first 50-100 miles (80-160 km). Use a properly rated 6-point socket if possible to minimize rounding risks.
Summary
Most Ford Fusion lug nuts require a 21mm (13/16 inch) socket across flats. Verify for your specific vehicle by checking the manual, inspecting the nut, or measuring across flats. When replacing or torquing, use the correct torque specification and a quality socket, and consider having a professional confirm if you’re unsure.
What size socket for Ford Fusion lug nuts?
A 19mm socket is the correct size for a Ford Fusion's lug nuts, but because the factory lug nuts can swell, a 19.5mm or 13/16-inch socket may be needed. A 19mm socket will fit the non-swollen nuts perfectly, but you may need a slightly larger, tight-fitting socket like a 19.5mm, or even a 13/16-inch socket, to remove the swollen ones.
This video shows how to identify and remove swollen lug nuts from a Ford Fusion: 59sAaron HinesYouTube · Jan 9, 2021
- Standard size: A 19mm socket is the correct metric size for a Ford Fusion.
- Swollen nuts: Due to corrosion, the original factory lug nuts can swell, making them too large for a 19mm socket.
- Alternative sizes: If the 19mm socket is too loose, try a 19.5mm socket or a 13/16-inch socket, as they may be able to fit over the swollen nuts.
- Safety tip: It is best to replace the factory-swelling nuts with solid aftermarket lug nuts to avoid future problems.
This video demonstrates how to remove swollen lug nuts from a Ford Fusion: 58sThe Driver ModYouTube · Jan 29, 2024
What size socket is a Ford lug nut?
The most common lug nut socket size of a 2021-2024 Ford Bronco lug nut is 13/16” (21mm).
What size lug nut is on a 2015 Ford Fusion?
The lug nut size for a 2015 Ford Fusion is 12mm x 1.5 with a 3/4" (19mm) hex size. The seat style is typically a conical or acorn seat, and they have a closed end.
- Thread size: 12mm x 1.5
- Hex size: 3/4" (19mm)
- Seat style: Conical or acorn
- Type: Typically a closed-end design
What size are the lug nuts on a 2013 Ford Fusion?
The lug nut size for a 2013 Ford Fusion is M12-1.50 thread with a 19mm (or 3/4 inch) hex size. These nuts typically have an acorn or conical seat style and are designed for use with factory wheels, according to Amazon.com and O'Reilly Auto Parts.
- Thread Size: M12-1.50
- Hex Size: 19mm or 3/4 inch
- Seat Style: Acorn or conical
- Thread Handing: Right-hand thread
