What size is the Ford F-150 oil drain plug?
For most Ford F-150 models, the oil drain plug uses a metric M14 x 1.5 thread with a 14mm hex head. Exact sizing can vary by engine and year, so it's important to confirm with your owner's manual or by inspecting the plug itself.
Why size variation matters across engines and years
The F-150 has used a range of engines over the years, from V6s to V8s and EcoBoost variants. While the drain plug is commonly M14 x 1.5, some older or specialized engines may use a different specification. Using the wrong plug can cause leaks or damage, so verifying the correct size for your exact truck is wise before performing service.
How to confirm the correct size on your specific model
Check the owner's manual under Maintenance or Lubrication Specifications. If the manual isn’t available, compare the existing drain plug to a known-size plug, or take the old plug to an auto parts store for a precise match. When replacing, use a new crush washer or gasket and ensure the plug is torqued to your engine’s specification.
Practical tips for oil changes on the F-150
Having the right drain plug size helps prevent cross-threading, leaks, and potential engine damage. If you discover a different size on your particular model, consult a dealer or service manual for the exact specification and recommended torque, and obtain the correct plug from a trusted supplier.
Where to source the correct plug and the right tools
Auto parts stores commonly stock drain plugs designed for M14 x 1.5 threads and the corresponding 14mm hex sockets. If your engine requires a different size, the dealer or service manual will specify it. Always replace the washer and adhere to the manufacturer’s tightening procedure.
Conclusion
In short, the Ford F-150’s oil drain plug is most commonly M14 x 1.5 with a 14mm hex head, but you should verify for your exact model year and engine to be sure.
Summary
The typical oil drain plug size for the Ford F-150 is M14 x 1.5 with a 14mm hex head, though variations exist by engine and year. Always confirm the specification for your specific truck to ensure a proper fit and seal.
