Rywire RY-B1-MILSPEC-EG Mil-Spec Wiring Harness for Honda B/D-Series Engines

Vehicle Fitment

• Universal wiring harness for Honda B-Series and D-Series engines; compatible with EG chassis and common engine swap applications

Features

• MIL-SPEC grade wiring construction for maximum durability
• Supports OBD1 ECU connections for B-Series and D-Series engines
• Color-coded wiring for simplified installation and troubleshooting
• High-temperature and chemical-resistant insulation
• Durable connectors with secure locking terminals
• Includes chassis-specific adapter for EG platform
• Grounded and shielded circuits for improved reliability
• Ideal for performance builds, engine swaps, and custom projects

Specifications

• Type: Engine wiring harness
• Material: MIL-SPEC wiring with heat-resistant insulation
• Compatibility: Honda B-Series and D-Series engines
• Design: Main engine harness with modular chassis adapter for EG chassis
• Supports front/rear sensor and ECU connections

Included Components

• 1x Main engine harness
• 1x Chassis-specific adapter harness for EG platform
• 1x Complete set of terminals and connectors
• 1x Installation instructions

Product Description

The Rywire RY-B1-MILSPEC-EG wiring harness is engineered for performance Honda B-Series and D-Series engine swaps. Built to MIL-SPEC standards, it provides durable, heat-resistant wiring and secure connectors to ensure reliable electrical performance for high-demand applications.

Designed for EG chassis platforms, this harness supports OBD1 ECU connections and features a modular chassis adapter to allow reuse of the main engine wiring across different swaps. Color-coded wires simplify installation while shielded circuits improve system reliability.

Ideal for custom builds, race cars, or restoration projects, the RY-B1-MILSPEC-EG provides a professional-grade solution for Honda engine swaps. Proper selection of the chassis adapter is required to match your specific setup.