Haltech O2 Sensor Weld-On Bung M18 x1.5 with Copper Washer & Blanking Plug

Haltech O2 Sensor Weld-On Bung M18 x 1.5 Haltech O2 sensor weld-on bung kit includes everything needed for a reliable, leak-free installation: a precision-machined M18 x 1.5 sensor bung, a copper sealing washer, and a threaded blanking plug. Designed for performance engines, this bung provides a secure, durable mounting point for wideband or narrowband oxygen sensors. Thread: M18 x 1.5 — standard fit for most automotive O2 sensors Includes: Weld-on bung, copper washer for optimal sealing, and blanking plug for testing or sensor removal Material & durability: High-quality steel construction for reliable welds and long service life Application: Ideal for header, downpipe, or exhaust tube installations on performance and race vehicles Benefits: Ensures accurate sensor readings, prevents exhaust leaks, and allows easy sensor replacement or pipe blanking Compact, easy to weld and install, the Haltech weld-on bung is the professional choice for tuners and fabricators who need precise O2 sensor placement and a leak-free seal.