38580-ZY9-023 38580-ZY9-003 Main Relay Assembly for Honda BF75 BF90 | JLM Marine

38580-ZY9-023 38580-ZY9-003 Main Relay Assembly for Honda BF75 BF90 | JLM MarineMain Relay Assembly for Honda BF75 BF90 Replaces 38580 ZY9 023, 38580 ZY9 003 This Main Relay Assembly is engineered for Honda BF75 and BF90 EFI outboard engines, delivering reliable ignition system control. Designed as a direct replacement for OEM relay assemblies, it ensures proper electrical switching and ignition timing across a wide range of Honda mid range outboards. Direct Replacements: 38580 ZY9 003, 38580 ZY9 023. This aftermarket relay

Main Relay Assembly for Honda BF75 BF90 – Replaces 38580-ZY9-023, 38580-ZY9-003

This Main Relay Assembly is engineered for Honda BF75 and BF90 EFI outboard engines, delivering reliable ignition system control. Designed as a direct replacement for OEM relay assemblies, it ensures proper electrical switching and ignition timing across a wide range of Honda mid-range outboards.

Direct Replacements: 38580-ZY9-003, 38580-ZY9-023. This aftermarket relay assembly is built to OEM specifications, providing dependable performance for Honda's electronic fuel injection systems.

• High-quality plastic construction for maximum strength and durability
• Plug-and-play installation with factory-style connectors
• Low heat and low power consumption design for extended lifespan

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket sources.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

Your package includes:

• 1 × Main Relay Assembly (CDI Igniter)
• The package contains all parts shown in the product images

Installation Guide

1. Disconnect the battery: Remove the negative terminal to ensure electrical safety before beginning work.
2. Locate the original relay assembly: Refer to your engine's service manual or parts diagram to identify the relay's mounting position.
3. Disconnect electrical connectors: Carefully unplug all wire harness connectors attached to the old relay assembly.
4. Remove mounting hardware: Unbolt or unclip the old relay from its bracket or mounting surface.
5. Compare parts: Verify that the new relay assembly matches the original in connector type, mounting points, and overall dimensions.
6. Mount the new relay: Secure the replacement relay assembly in the same position using the original mounting hardware.
7. Reconnect electrical connectors: Plug all wire harness connectors into the new relay, ensuring each connection is fully seated and secure.
8. Reconnect the battery: Attach the negative terminal and ensure a solid connection.
9. Test engine operation: Start the engine and verify that ignition timing, idle, and throttle response are normal.
10. Inspect for issues: Check for any warning lights, unusual sounds, or electrical faults during initial operation.

Troubleshooting & FAQ

Q: How do I confirm this relay assembly fits my Honda engine?
A: Cross-reference your engine's model number with the compatibility table above. Verify that your original relay bears part number 38580-ZY9-003 or 38580-ZY9-023 to ensure a perfect match.

Q: What are the signs that my main relay assembly is failing?
A: Common symptoms include intermittent starting problems, engine stalling at idle, loss of ignition spark, or complete electrical failure. If you experience these issues, test the relay with a multimeter or replace it as a precautionary measure.

Q: How often should I replace the main relay assembly?
A: Main relays typically last many years under normal conditions. Replace only when you experience ignition system failures or electrical anomalies that testing confirms are relay-related.

Q: Will this aftermarket relay perform the same as the original Honda part?
A: Yes. This relay is manufactured to OEM specifications with comparable materials and design, ensuring proper switching characteristics, heat tolerance, and electrical performance for Honda EFI systems.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.