Overview The Haltech NTK Wideband Adaptor Harness extends your wideband oxygen sensor connection by 1.2 metres, giving you the flexibility to mount sensors in optimal exhaust positions whilst keeping your ECU installation clean. Essential for builds where standard harness length limits sensor placement or creates routing challenges in engine bays with relocated ECUs or complex exhaust configurations. Technical Specifications Part Number: HT-010727 Length: 1200mm (4 feet) Connector Type: NTK Wideband Compatible Application: Wideband Oxygen Sensor Extension Construction: OEM-grade automotive wiring Why You Need This Proper wideband sensor placement is critical for accurate AFR readings, but standard harnesses often fall short in modified applications. In LS swaps into Japanese chassis, RB25/26 builds with relocated ECUs, or 2JZ setups with custom exhaust manifolds, you'll frequently find the sensor needs to sit further from the ECU than factory harness length allows. Running makeshift extensions or poorly shielded wire introduces signal degradation and potential for false readings that can destroy engines during tuning. This genuine Haltech extension maintains signal integrity over the full 1.2-metre run, using proper gauge wire and connector specifications matched to NTK wideband sensors. Whether you're mounting the ECU in the boot of a drift car, relocating it away from heat in a turbo build, or simply need cleaner routing in a tight engine bay, this harness solves the reach problem without compromising data quality. Particularly valuable in single-turbo conversions where the optimal sensor location is often downstream from where standard harness length permits. ECU & System Compatibility Compatible with all Haltech ECUs featuring NTK wideband inputs, including the complete Elite series (Elite 550, 750, 1000, 1500, 2000, 2500), Nexus R3, R5, and Rebel ECUs, plus Platinum series units. Works with both internal wideband controllers and external WB1/WB2 wideband controller setups. Contact our technical team to confirm compatibility with your specific ECU configuration and wideband sensor arrangement. What's in the Box 1 x Haltech NTK Wideband Adaptor Harness (1200mm length) Weather-sealed connectors Installation documentation Complete Your Build Most customers extending wideband harnesses also require proper sensor mounting hardware and additional engine management accessories. Our technical team can recommend the complete wiring solution for your specific build, including main engine harnesses, additional sensor extensions, and mounting hardware. With genuine Haltech parts in UK stock and technical support from tuners who've handled hundreds of EFI conversions, we'll ensure your wideband setup delivers reliable data from day one.
