Honda K-Series Plug-and-Play Harness

The Honda K-Series Plug-and-Play Harness is a purpose-built wiring solution for Honda K-Series racing applications, offering exceptional quality, flexibility, and ease of installation.

Compatibility

Engine

• K24A2
• K20 applications – Requires K24A2-style crank position sensor
• Additional K24 applications – Sensor or accessory changes may be required

Transmission

• Manual Transmission

Professional Engineering

• Plug-and-Play installation – Simplifies installation with a harness designed specifically around the Honda K-Series engine platform
• Designed around the K24A2 – Harness routing and engine connections were developed using the K24A2 engine
• VTEC and VTC control – Designed to provide full control of Honda's variable cam timing and VTEC systems through the MS3Pro ECU

Durable Construction

• TechFlex woven wrap – for superior protection and durability
  
• High-temp TXL & GXL automotive-grade wire – For reliability in demanding racing environments
• Labeled heatshrink on connectors – For quick and easy identification
• Protected harness joints – Helps protect electrical connections from heat, moisture, and vibration

Room to Grow – Future-Proof Your Build

Additional MS3Pro I/O is integrated into the harness, providing access to advanced engine-management features such as:

• Boost Control
• Table switching
• Flex fuel
• Additional injector outputs
• Additional analog inputs
• And more!

Beyond its functional advantages, the K-Series harness provides a clean, professional installation suitable for competition-focused builds.

Throttle Options:

Due to the wide range of throttles used in K-series swaps, we leave the throttle broken out onto a 6 pin DTM connector. 

• Cable-Driven Throttle: Supported 
• Drive-By-Wire: Supported with AMP Drive-By-Wire Controller

What’s in the Box:

• K-Series Plug-and-Play Harness
• K-Series Accessories
  • Alternator Harness
  • IAT Harness
    
  • IAT Sensor
  • 0-150 PSI Oil Pressure Sensor
  • Connectors
    • Spare
    • Fuel/Fuel Pressure
    • CAN
    • O2 Sensor
    • VSS
    • Throttle
  • Tuning Cable
• TunerStudio Registration Code

Optional Add-ons:

These optional bundles are designed to pair with the K-Series Harness, making installation cleaner while providing additional flexibility for future upgrades.

• ECU Harness Power Bundle
  
• K-Series Spare Wire Bundle