• Haltech Nexus T2 T1 Premium Universal Wire-in Harness HT-181201 with integrated fuse and relay box
  • Haltech Nexus T2 T1 Premium harness showing colour coded labelled wires and relay box detail
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Haltech Nexus T2 / T1 Premium Universal Wire-in Harness 2.5m

Haltech Nexus T2 / T1 Premium Universal Wire-in Harness 2.5m

HT-181201

$550.00 AUD
$550.00 AUD
Sale Sold out
Tax included. Shipping calculated at checkout.
  • Authorised Haltech dealer
  • Fast Shipping Australia Wide
  • Real fitment advice

A complete wiring solution for custom-fitting a Nexus T2 or Nexus T1 ECU, with a Haltech mini fuse and relay box built into the loom. The box handles ECU, injection and ignition power switching and protection, plus fuel pump control, so you are not sourcing and mounting a separate fuse box on a scratch build.

The wires at the engine end are unterminated, colour coded and clearly labelled to match the Haltech wiring diagram, so you route and terminate each connection to suit your engine.

Specifications

  • Suits Nexus T2 or Nexus T1 ECU wire-in applications
  • 2.5 m (8.2 ft) length
  • Haltech mini fuse and relay box for ECU, injection and ignition power switching and protection, plus fuel pump control
  • Standard TXL automotive-grade wire
  • Colour coded and labelled unterminated wires

What's in the box

  • 1 x Nexus T2 / T1 Premium Universal Wire-in Harness, 2.5 m
  • 1 x quick start guide

Premium or Basic?

The Premium harness is the one to get if you are wiring a car from scratch - the integrated fuse and relay box saves a job and keeps the install tidy. If the car already has a sorted fuse and relay setup you can run the Basic harness instead and save the difference.

Give us a call if you want a hand working out which suits your build.

View full details
  • Haltech Nexus T2 T1 Premium Universal Wire-in Harness HT-181201 with integrated fuse and relay box
  • Haltech Nexus T2 T1 Premium harness showing colour coded labelled wires and relay box detail

Haltech buying information

Warranty & authorised dealer

Racing Solutions is an authorised Australian Haltech dealer. Everything we supply is genuine, current-revision Haltech stock — never grey or parallel import.

Haltech products come with a limited 12-month warranty covering defects in materials and workmanship from the date of purchase.

Warranty claims are handled directly by Haltech. You'll need valid proof of purchase — your original invoice or receipt. If you're not sure where to start, get in touch and we'll point you in the right direction.

Price match

If you find this exact item advertised for less by another authorised Australian Haltech dealer, contact us before you order and we'll match the price.

To qualify:

  • The competitor must be an authorised Australian Haltech dealer
  • Same part number, brand new, and currently in stock with them
  • The price must be publicly advertised and GST-inclusive
  • We compare the total delivered price, including shipping
  • Excludes clearance, run-out, sale events, member-only pricing, and auction or marketplace listings

Call 0458 998 395 or use the contact form below and we'll confirm within one business day.

Dispatch & delivery

If the item is in stock at our Perth warehouse or at Haltech, it ships same or next business day.

Not every product is held in stock, including at Haltech. Items that need to be built or restocked can take up to 4 weeks.

If you want a firm lead time before you order, get in touch and we'll confirm it for you.

Tuning & fitment support

Buying the ECU is the start, not the end. We can talk you through which harness, sensors and accessories your combination actually needs, and point you toward tuners who know the platform.

Over 20 years of hands-on trade experience sits behind that advice — we build and run these cars ourselves.

Not sure which ECU or harness you need?

Haltech's range spans wire-in ECUs, plug-in ECUs, terminated harnesses and plug-and-play kits. The right choice depends on your engine, throttle type (cable or drive-by-wire) and injector connectors.

Send us your engine, model year and current setup and we'll confirm the correct part number before you buy.

Questions about this Haltech product?