29 mm Straight Lambda O2 Sensor Socket

Large-hex lambda sensors require a dedicated socket that most generic O2 sensor kits do not include. This Teng Tools 29 mm straight socket fills that gap with a precise hex profile and a 1/2 inch drive connection sized for the torque demands of exhaust-system work.

The straight body provides maximum hex engagement when you have direct axial access to the sensor, making it the right choice for manifold locations that sit clear of heat shields and frame members. Slotted walls let the wiring harness pass through so you can remove or install the sensor without disconnecting signal leads, protecting fragile wires and cutting job time.

At 29 mm, this tool covers the larger sensor hex found on select European marques and performance applications where the standard 22 mm socket is too small. A snug fit across all six flats means even force distribution, cleaner threads, and a sensor that torques to spec without drama.

Purchased individually, this socket lets you invest in exactly the coverage you need. Pair it with the rest of your Teng Tools collection or mix it into your current specialty drawer; the 1/2 inch drive is universal and works with whatever ratchet or breaker bar you reach for first.