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Haltech NEXUS R5 + Universal Wire-in Harness Kit
Haltech NEXUS R5 + Universal Wire-in Harness Kit
SKU:HT-195200
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- Authorised Haltech dealer
- Fast Shipping Australia Wide
- Real fitment advice
NEXUS R5 + Universal Wire-in Harness Kit
Nexus R5 is Haltech's flagship product combining the functionality of a power distribution module, a data logger, a dual channel wideband controller and a state-of-the-art engine management system in one powerful device — a VCU (Vehicle Control Unit).
Ideal for dedicated race cars, engine swaps and custom wiring jobs. The Universal Wire-in Harness has a set of ECU connectors at one end and unterminated wires at the other. All wires at the unterminated end are colour coded and clearly labelled — connect your Haltech ECU, follow your wiring diagram for the engine connections, load your base map and you're ready to go. The wiring diagram is accompanied by the full VCU manual and software on the USB key provided, or downloadable from the Haltech website.
Length: 2.5m (8'). Suits: racing applications where advanced race features, data logging and power management control is required.
Includes: NEXUS R5 VCU, SurLok connectors (Red and Black), Wi-Fi antenna, mounting bolts, USB-C cable, USB-C dust cap, plug and pin set (AMP 26 pin key 1 and 3, 34 pin key 1 and 2, DTP-4), NEXUS R5 universal engine wiring harness with fire wall grommet 2.5in (63.5mm).
Key VCU features: 4 x 25A (continuous) push-pull PWM outputs (injectors/coils/transbrake/thermofan/fuel pump); 12 x 8A high side outputs; 18 x peak/hold injector drivers; 12 x low current ignition outputs; 8 x low side PWM drive outputs (DPOs); 4 x push-pull/h-bridge outputs (8A, PWM) for electronic throttle; 23 x 0-5V analog inputs with redundancy; 2 x onboard wideband controllers (NTK/LSU4.9); 3 x CAN ports with switchable termination; onboard data logging up to 300 channels at sample rates up to 1ms (1kHz) with 512MB internal memory.

Why buy your Haltech from Racing Solutions
Authorised Australian Haltech dealer. Genuine stock, 12-month warranty, and over 20 years of hands-on trade experience behind every recommendation.
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.