Engine Harness for K-Series

The Hybrid Racing Universal K-Series Swap Conversion Wiring Harness facilitates the installation of a K-Series engine into various chassis, especially those lacking direct plug-and-play solutions like certain Preludes, DA Integras, Accords, and older Honda chassis. This "race harness" version comes pre-wired with essential components: a fuel pump relay, main relay, and primary oxygen sensor relay. It also features provisions for an OEM K-Series 02-04 Wideband O2 sensor and an OBD2 port, along with outputs for critical functions such as tachometer, speedometer, low oil pressure warning, malfunction indicator, fan control, fuel pump control, and starter relay. The harness requires a constant 12v and switched 12v power source. Hybrid Racing constructs these harnesses using brand-new connectors, terminals, and wire sourced directly from the same manufacturer that supplies Honda. Each harness is machine-made and then meticulously human-checked for reliability and to guarantee it is issue-free. For a clean and organized installation, all wires are clearly labeled and packaged. Please note specific fitment exclusions: this harness does NOT work with any 05-06 OR K24 engine wiring harnesses. Additionally, European customers utilizing a UKDM K20A/K20A2 wiring harness will need to convert the harness to support a narrowband O2 sensor, as this harness is wired for the factory wideband sensor. The harness is compatible with all USDM/JDM 02-04 K-Series engine harnesses, including K20A, K20A2, and K20A3. It is important to note that if your 1999-2000 Civic has a D16y5 engine (commonly found in the HX model), you will need the 96-98 Conversion Harness instead.