22 mm Lambda Oxygen Sensor Socket

When an oxygen sensor seizes in a hot exhaust manifold, a generic socket is not the right answer. Teng Tools builds this 22 mm socket specifically for lambda O2 sensor work, with a profile that clears the wiring harness and a precise hex that grips the sensor body without rounding.

The 3/8 inch drive accepts the ratchets and extensions already in your toolbox, and the compact body fits into the tight spaces between exhaust pipes, heat shields, and chassis members where sensors typically live. Slotted walls let the harness pass through so you can remove or install the sensor with wires still connected, cutting job time and protecting fragile signal leads.

Sold individually, this tool lets you buy exactly what you need. Whether you are a professional technician replacing sensors all day or a weekend mechanic handling a single check-engine-light repair, one dedicated socket does the job cleaner and faster than improvising with standard deep sockets and universal adapters.

Pair it with a short extension and a swivel adapter for the tightest manifold clearances, or drive it straight with a ratchet when access allows.