Rywire B Series Adapter Harness for 92-95 Civic/94-95 Integra

Rywire B Series Adapter Harness for 92-95 Civic / 94-95 Integra

Doing a B series swap into your EG Civic or DC Integra? This is the part that keeps you from spending a weekend with a wiring diagram and a razor blade. The Rywire B series adapter harness plugs directly between your B series engine harness and your EG or DC chassis harness - no cutting, no splicing, no guessing which wire goes where. You plug in one end, plug in the other, and your electrical system works. That's it.

Browse more Civic 1992-1995 Electronics and Civic 1992-1995 Engine parts to finish your EG build right.

Why You Need This (And Why Cutting Your Harness Is a Bad Idea)

Your EG or DC chassis harness uses a connector that doesn't match the B series engine harness you're swapping in. Those connectors aren't compatible. Your options are: splice the two harnesses together by hand - which takes hours and turns your engine bay into a wire-color guessing game - or use this adapter and be done in minutes. If you ever pull the engine for a rebuild or another swap, you unplug the adapter and everything comes apart cleanly. No butchered harness to deal with later.

Plug-and-Play B Series Harness Adapter

One end connects to your chassis harness. The other connects to your B series engine harness. Every signal reaches where it needs to go - sensors, injectors, VTEC solenoid, all of it. You're not rewiring anything. You're just bridging two connectors that were never meant to talk to each other from the factory.

This is Rywire's budget adapter harness. It's not their full tucked or mil-spec harness - it's designed to work with your existing chassis and engine harnesses as-is. If your harnesses are in solid shape, this is the most straightforward and cost-effective way to complete the electrical side of your B series swap. If you need a full replacement harness, check out Rywire's other options through Rywire.

What's Included

• 1x Rywire B series budget engine harness adapter
• Plug-and-play connector conversion - no cutting or splicing required

Vehicle Fitment

• 1992-1995 Honda Civic CX, DX, EX, LX, Si, VX (EG chassis)
• 1993-1995 Honda Civic Del Sol S, Si, VTEC
• 1994-1995 Acura Integra RS, LS, GS-R, Special Edition (DC chassis)

Compatible B Series Engine Swaps

• B16A, B16A2, B16A3, B16B
• B17A1
• B18A1, B18B1, B18C1, B18C5
• OBD1 B series engine harnesses (verify compatibility for OBD2 conversions)

Note: This adapter is specifically for B series swaps into EG Civic and DC Integra chassis. It won't work on other chassis or engine combinations. Make sure your existing chassis harness and engine harness are undamaged and unmodified before you order - if either harness has been cut up or spliced previously, the adapter may not function correctly.