1/4" Mild Steel Weld-on Kit - inc Nut and Ferrule

The Haltech 1/4 inch mild steel weld-on kit provides a professional solution for mounting sensors directly into exhaust manifolds, intake pipes, or oil pans. This complete kit includes a precision-machined weld-on bung, stainless steel nut, and compression ferrule for reliable, leak-free sensor installations. The mild steel construction ensures clean welds and proper fitment with standard tube wall thicknesses. Ideal for workshops installing wideband oxygen sensors, temperature probes, or pressure transducers in engine management applications where permanent mounting is required.