1/4" Stainless Compression Fitting Kit - 1/8" NPT Thread

Overview

Professional-grade stainless steel compression fitting designed for reliable sensor connections in high-performance EFI builds. This complete kit provides a leak-proof, vibration-resistant connection for 1/4" tubing to 1/8" NPT threaded ports, essential for fuel pressure sensors, oil pressure monitoring, and boost reference lines where reliability matters most.

Technical Specifications

• Part Number: HT-010813
• Thread Size: 1/8" NPT male
• Tube Size: 1/4" (6.35mm) OD
• Material: Stainless steel construction
• Kit Contents: Fitting body, compression nut, and ferrule

Why You Need This

Compression fittings are the professional standard for sensor connections because they eliminate the common failure points found with barb fittings and jubilee clips. In performance applications where sensor accuracy is critical for tuning and engine protection, a loose connection or air leak can cause false readings that lead to poor running or worse — engine damage. The stainless construction handles the thermal cycling and vibration that destroys cheaper brass fittings over time.

We see this fitting used extensively in turbo builds for boost reference lines to MAP sensors, fuel system builds connecting pressure sensors to fuel rails, and oil pressure monitoring setups. The 1/8" NPT thread is the standard for most aftermarket pressure sensors and many OEM applications. Whether you're running a worked RB25DET, a turbo LS swap, or converting a classic to EFI with a Haltech system, proper sensor connections aren't optional — they're what separates a reliable tune from a roadside breakdown.

ECU & System Compatibility

Universal fitting suitable for use with all pressure sensors and reference applications across the complete Haltech range including Elite 550/750/1000/1500/2000/2500, Nexus R3/R5, and Platinum series ECUs. Ideal for connecting fuel pressure sensors, oil pressure sensors, MAP sensors, and boost reference lines to your engine management system.

What's in the Box

• Stainless steel compression fitting body with 1/8" NPT male thread
• Compression nut
• Stainless steel ferrule

Complete Your Build

Most customers building comprehensive sensor packages also require pressure sensors, appropriate tubing, and additional fittings for multiple connection points. Our technical team can specify the complete sensor connection kit for your application, ensuring you have everything needed for reliable, professional installation. With our UK stock holding and expert pre-sales advice, we'll get your sensor connections sorted properly the first time.