Haltech S3 Flying Wiring Loom

Haltech S3 Flying Wiring Loom

Elevate your Haltech S3 powered engine setup with this premium, hand-built motorsport wiring loom. Engineered exclusively for the Haltech S3 Engine Control Unit, this harness uses high-performance MIL-W-22759/16 ETFE wire — the same grade trusted in aerospace and top-tier racing applications.

Perfect for race car builds, engine swaps, or high-end performance street machines where reliability under extreme heat, vibration, fuel exposure, and electrical interference is non-negotiable. Say goodbye to generic or automotive-grade compromises — this loom delivers a clean, precise, and future-proof electrical foundation.

Key Features:

• Haltech S3 Specific Design — Fully pinned to match the S3 exact pinout (2x 34-pin Tyco Superseal connectors, standard keying). Every wire is correctly allocated for power, grounds, sensors, injectors, ignition, half-bridge outputs, CAN bus, digital/analogue inputs, and more — no repurposed circuits or guesswork.
• Motorsport-Grade ETFE Wiring (MIL-W-22759/16) — Thin-wall, lightweight insulation with superior resistance to:
  • High temperatures
  • Fuels, oils, and automotive chemicals
  • Vibration and mechanical stress
  • Long-term degradation
• Unterminated (Flying Lead) Configuration — Maximum flexibility for custom sensor choices, CAN integration, relay setups, or unique engine configurations. Includes a downloadable pin placement / colour-coded wire identification sheet to simplify installation.

What's Included:

• Pre-wired ETFE (MIL-W-22759/16) loom
• Haltech S3 ECU connector(s) (2x 34-way Tyco Superseal)
• Wire identification / pinout reference sheet (downloadable)
  

Not Included:

• ECU, sensors, actuators, relays, or termination components (crimps, boots, etc.)
• Custom terminations (available on request — discuss prior to ordering for modified lengths, specific connectors, or added provisions)

Compatibility:

• Designed specifically for the Haltech S3 ECU.
• Ideal for port-injection engines, DBW throttle, cam control and CAN bus applications.

Stock & Ordering Information:

This loom is built to order and lead times vary depending on current demand and component availability. Stock Made be available.

Legal Notice: Haltech is a registered trademark of Lockin Pty Ltd This product is an aftermarket wiring solution and is not affiliated with, endorsed by, or supplied by Lockin Pty Ltd.