Spark Plug Rethread Tool M14 x 1.25 140mm Thread Repair

A spark plug rethread tool for cleaning up and re-cutting damaged M14 x 1.25 plug threads. The 140mm length, centring shaft and hex drive make it useful when working on deeper seated spark plug holes where access is more awkward.

Used for engine servicing, vehicle maintenance and workshop repair work when spark plug threads have become worn, dirty or damaged and the plug will not start cleanly. It suits mechanics, garages and capable DIY users who need to tidy existing threads before refitting a plug, especially on engines where the plug sits further down and a shorter tool is less convenient to use.

The internal thread size is M14 x 1.25, so it is intended for matching spark plug threads only. A centring shaft helps guide the tool into position for better alignment while working, and the eccentric function helps with handling during use. The external hexagon drive gives a straightforward way to turn the tool, while the knurled knob adds grip when positioning or starting the job. Also included is a conical mounting shaft for thread repair sleeves when required. The longer 140mm body gives extra reach into recessed plug areas, which is useful for regular maintenance and awkward repair jobs where access can slow things down.

Spark plug rethread tool specifications

• Thread size: Internal M14 x 1.25 spark plug thread repair tool.
• Length: 140mm body helps reach deeper seated plug threads.
• Handling: Eccentric function assists control while working in awkward areas.
• Alignment: Centring shaft helps guide the tool into place.
• Drive and grip: External hex drive, knurled knob and conical mounting shaft for thread repair sleeves.

A practical choice for regular maintenance and repair work.