6R3-85570-01-00 Ignition Coil for Yamaha V4 V6 | JLM Marine

Ignition Coil for Yamaha V4 V6 Outboards – Replaces 6R3-85570-01-00

This premium aftermarket ignition coil is engineered to fit Yamaha V4 and V6 2-stroke outboards ranging from 55HP to 225HP. Designed for reliable spark delivery in demanding marine environments, it ensures optimal engine performance across multiple model years from 1990 to 2010.

Directly replaces Yamaha OEM part numbers 6R3-85570-01-00, 6R3-85570-00-00, 697-85570-00-00, and 6H2-85570-00-00, as well as aftermarket numbers 18-5128 and 187-6391.

• Built with pure copper windings that meet or exceed OEM specifications
• Operating temperature range: -40°C to 100°C for extreme conditions
• Anti-corrosion treatment and durable anti-aging materials for extended service life

Part Number Cross-Reference

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

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here's a guide to help you identify your engine's serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 × Ignition Coil

Installation Guide

1. Disconnect the battery's negative terminal to ensure all power is off before beginning work.
2. Locate the faulty ignition coil on your Yamaha outboard engine, typically mounted near the spark plugs.
3. Disconnect the electrical connectors from the old coil, noting their positions for reinstallation.
4. Remove the mounting bolts securing the old ignition coil and carefully lift it away from the engine.
5. Inspect the mounting area and clean any debris or corrosion to ensure proper contact.
6. Position the new ignition coil in place, aligning the mounting holes with the engine block.
7. Secure the new coil with the original mounting bolts, tightening to manufacturer specifications.
8. Reconnect all electrical connectors in their original positions, ensuring a firm, secure fit.
9. Reconnect the battery's negative terminal and perform a visual inspection of all connections.
10. Start the engine and listen for smooth operation; check for misfires or irregular firing.
11. If the engine runs smoothly, verify spark delivery by checking each cylinder's performance.
12. Conduct a brief test run on the water to confirm the repair was successful under normal operating conditions.

Troubleshooting & FAQ

Q: How do I confirm this ignition coil fits my Yamaha outboard?
A: Check the compatibility table above for your engine's horsepower and year range (1990-2010 for most models). You can also cross-reference your existing OEM part number (6R3-85570-01-00, 6R3-85570-00-00, 697-85570-00-00, or 6H2-85570-00-00) or use the Yamaha serial number guide linked above to identify your model.

Q: What are the signs that my ignition coil needs replacement?
A: Common symptoms include misfiring, rough idling, difficulty starting, loss of power, increased fuel consumption, and intermittent spark. If multiple cylinders are affected, check each coil individually to isolate the faulty unit.

Q: How often should I replace my ignition coil?
A: Ignition coils typically last several years under normal use, but exposure to saltwater, extreme temperatures, and vibration can shorten their lifespan. Replace when you notice performance issues or during major engine overhauls as preventive maintenance.

Q: What's the difference between this aftermarket coil and the OEM version?
A: This aftermarket ignition coil is manufactured to meet or exceed OEM specifications using pure copper windings and high-quality insulation materials. While it's not an OEM Yamaha part, it delivers comparable performance at a more competitive price point and includes anti-corrosion treatment for extended durability.

Q: Can I install this myself or do I need a mechanic?
A: Installation is straightforward for those with basic mechanical skills and tools. However, professional installation is recommended if you're unfamiliar with marine electrical systems to ensure proper connection and engine safety.

Q: Is this an OEM part or an aftermarket replacement?
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.