Weld-on, precision machined 18 mm x 1.50 pitch, 304L stainless steel long ''J'' style oxygen sensor ring with jam nut. This oxygen sensor ring fits standard Bosch type Lamda sensors and is a must for custom fabricators.

The jam nut on this ÒJÓ Style Oxygen Sensor Fitting allows for 360 degree indexing and threads into your existing M18 x 1.50 pitch O2 Bung to help eliminate and avoid Check Engine Lights (CELÕs).