Ignitions and Electrical Wiring Harnesses

Rywire

Rywire Honda B/D-Series Mil-Spec Engine Harness w/Chassis Specific Adapter

$899.00

SKU: R00L RY-B1-MILSPEC-EF-DX-EARLY

In Stock
In Stock
Ships by Jul 30
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Rywire Honda B-Series OBD1 Tuck Budget Engine Harness w/ 1988-1989 Honda Civic and Honda CRX DX/STD Chassis Specific Adapter. Rywire Budget D-series and B-series compatible wire-tuck engine harness is nearly identical to our Mil-spec engine harness line with the primary difference being, the single black wire color and expandable loom used. All connectors and materials are new. Each connector is crimped with pneumatic heads to ensure an OEM crimp every time, then tagged with a white identification label for easy installation. All heavy interference circuits are protected and grounded with proper wire covering. Our engine harnesses are 100% quality tested pin to pin; And resistance checked to ensure no voltage fluctuations. All Rywire engine harnesses are made with OBD1 (92-95) Computer Connectors. A computer plug adapter can be used for OBD2 computers if necessary however our harness does not support USDM OBD2 computers. Aftermarket computers using OBD2 plugs and Non-US OBD2 computers are compatible (except for H22 and GSR stock computers). Each harness will come with a custom back side sub-harness that will be proprietary to the chassis you choose on the drop down menu. This way if you ever change chassis you will only need a new sub-harness, not a whole new wire loom! These harnesses are warrantied and guaranteed to work, however they are non-refundable if installed. Because the back-side (interior/shock tower connection) separates from the main harness, the engine harness can be used on multiple chassis provided the engine itself uses the same components. We sell the back-side harness separately only over the phone for previous engine harness customers.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRywire
Part NumberR00L RY-B1-MILSPEC-EF-DX-EARLY

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy