What size thread is a Ford Focus RS shift knob?
The typical thread size for a Ford Focus RS shift knob is M12 x 1.25, though variations can exist by year and aftermarket parts. Always verify the exact size on your vehicle before purchasing a replacement.
This article explains the expected thread size, how to confirm the correct size on your Focus RS, and what options you have if you need a different thread or an adapter for aftermarket knobs.
Thread size expectations for the Focus RS
When shopping for a replacement knob, the baseline you’ll encounter is a metric M12 thread with a 1.25 pitch. Some aftermarket knobs or different model years may use slightly altered pitches or diameters, so it’s important to confirm the exact size for your car’s shifter post and the knob’s internal threads.
- M12 x 1.25 — the most common size for many modern Ford manual knobs, including the Focus RS factory knob
- M12 x 1.5 — a less common alternative seen on a subset of aftermarket knobs
- M10 x 1.25 — occasionally found in certain aftermarket products or non-Ford installations
Concluding note: Before purchasing a replacement, double-check the exact thread size on your vehicle or with the knob’s product listing. Using the wrong size can cross-thread or damage the shifter.
How to verify the correct size on your Focus RS
To confirm the correct thread size, inspect the lever’s mounting post and the knob’s interior threads. If you have the factory knob, you can remove it carefully and measure the post diameter with calipers or a thread gauge, then compare to standard metric sizes (M8, M10, M12, etc.) and pitches (1.25, 1.5). If you’re unsure, contact a Ford dealer or refer to the vehicle’s documentation or the knob’s packaging for specifications.
Summary
The Ford Focus RS shift knob typically uses an M12 x 1.25 thread, but variations exist across years and aftermarket products. Confirm the exact size on your car before purchasing a replacement, and seek assistance from a dealer or professional installer if you’re unsure.
