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

Overview

Professional-grade stainless steel weld-on fitting designed for permanent sensor mounting in exhaust manifolds, downpipes, and intake systems. This complete kit eliminates the guesswork with precision-machined components that deliver leak-proof, long-lasting installations for wideband oxygen sensors, EGT probes, and pressure transducers in high-performance builds.

Technical Specifications

• Part Number: HT-010812
• Thread Size: 1/4" NPT
• Material: 304 Stainless Steel
• Construction: Precision machined nut and ferrule
• Temperature Rating: Suitable for exhaust gas temperatures

Why You Need This

When you're building a proper EFI conversion or turbo setup, sensor placement isn't an afterthought — it's critical for accurate tuning data. Cheap mild steel bungs rust out, create leak paths, and compromise your tune. This stainless kit is what we use on every professional build because it handles the thermal cycling and corrosive environment that kills inferior fittings.

Perfect for LS swap exhaust fabrication, RB25/26 turbo builds, or any application where you need reliable sensor mounting. Whether you're installing a Haltech WB1 wideband controller's sensor in your custom downpipe, mounting EGT probes for boost monitoring, or positioning MAP sensors for accurate load readings, this kit provides the foundation for professional results. The precision-machined threads ensure proper torque values and eliminate the sensor damage that comes from poorly finished bungs.

ECU & System Compatibility

Universal fitment for any sensor requiring 1/4" NPT mounting. Ideal for use with Haltech WB1 and WB2 wideband controllers, as well as temperature and pressure sensors across the entire Haltech Elite, Nexus, and Platinum ECU ranges. Contact our technical team for specific sensor compatibility guidance.

What's in the Box

• 1x 1/4" NPT Stainless Steel Weld-on Bung
• 1x Precision Machined Nut
• 1x Sealing Ferrule

Complete Your Build

Most customers building comprehensive engine management systems pair this with our Haltech WB1 Wideband Controller for accurate AFR monitoring, plus additional bungs for multi-point exhaust gas temperature monitoring. Our technical team can recommend the complete sensor package for your specific build requirements. With UK stock and same-day despatch, we keep your fabrication projects moving forward without delays.