Exhaust Sensor Thread Tap M22 x 1.5 DPF NOX Guide Bolt

An exhaust sensor thread tap used to restore damaged or corroded M22 x 1.5 threads on exhaust sensor fittings. It is made for recutting probe threads before refitting sensors, helping save the original fitting where the thread has become rusty, tight or distorted.

Used for DPF and NOX sensor work, this tool suits garage repairs, exhaust servicing and vehicle maintenance where seized or worn sensor threads can stop a proper refit. It is particularly useful on older vehicles and emissions system repairs, where thread damage around the exhaust can cause problems when removing and reinstalling probes. For workshop use or regular repair work, it helps make thread restoration more straightforward without replacing the whole fitting.

The short body is useful when access is limited around the exhaust system, where a longer tap can be awkward to turn. A 6 cutting edge design helps the tap start more steadily on damaged threads, while the guide bolt includes cleaning grooves to help clear debris during recutting. The external hex drive gives a more positive way to apply force in confined spaces, which is helpful when grip is restricted around pipework and shields. For repeated exhaust maintenance, these details help keep the job controlled and practical when restoring common sensor threads.

Exhaust sensor thread tap specifications

• Thread size: M22 x 1.5 for exhaust sensor fittings.
• Application: Used on DPF and NOX sensor thread restoration work.
• Design: Short pattern helps when working in tighter areas around exhaust components.
• Cutting edges: 6 cutting edges help the tap centre and start more steadily.
• Drive: External hexagon drive for positive turning force and better control.

A practical choice when damaged exhaust sensor threads need restoring before refitting.