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Ignitions and Electrical› Wiring Harnesses

Rywire

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

$899.00 $872.03 Save $26.97

SKU: R00L RY-B2-MILSPEC-EF

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Rywire B-Series Mil-Spec Engine Harness (RY-B2-MILSPEC-EF) is designed for Honda B-series and D-series engines, featuring OBD2 Alternator, Distributor, and Injector connectors, and OBD1 (92-95) ECU plugs. It includes a chassis-specific adapter (RY-B-SUB-EF). Constructed with Mil-Spec Teflon coated wire (200°C heat rating), Raychem DR-25 heat shrink, and adhesive-lined wire junctions for moisture protection. Uses standard wall ETFE insulation (Tefzel) for high chemical/radiation resistance and mechanical durability. Each connector is pneumatically crimped for OEM quality and tagged with yellow identification labels. Heavy interference circuits are protected and grounded. 100% quality tested pin to pin and resistance checked. Compatible with aftermarket and non-US OBD2 computers (not USDM OBD2 computers, except H22 and GSR stock computers). A custom backside sub-harness is proprietary to the chosen chassis, allowing harness reuse with a new sub-harness if the chassis changes. Made in the U.S.A.
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Part #: RY-B2-MILSPEC-EF

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandRywire
Part NumberR00L RY-B2-MILSPEC-EF
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

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.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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