ARCO IG024 Yamaha 115-225HP Ignition Coil

The ARCO IG024 ignition coil is intended for a broad selection of Yamaha V4 and V6 outboards from the mid-1990s through the 2000s. The supplier lists 115, 130, 175, 200, and 225HP families along with several C-, S-, V-, L-, P-, B-, and D-series model designations. That broad fitment makes the engine model and original coil number more useful than horsepower alone when selecting a replacement. The coil is designed to restore the factory-style ignition function without modifying the surrounding system.

Yamaha 6R3-85570-01-00 is listed as the primary OEM cross-reference. Sierra 18-5128 and CDI Electronics 187-6391 are also identified as interchange numbers. Those references provide a concise way to verify the correct coil on engines that may already have aftermarket ignition parts installed. Compare the connector and mounting arrangement to the removed coil before the replacement is secured.

Inspect the high-tension lead, primary connector, grounds, and surrounding ignition wiring during the repair. A weak or corroded connection can produce an intermittent misfire that a new coil will not correct by itself. ARCO lists 12 months of materials-and-workmanship coverage for leisure use and 90 days for commercial or racing service. Once installed, verify smooth running under load across the engine’s normal operating range.

• Broad Yamaha model coverage across several outboard families
• Replaces Yamaha 6R3-85570-01-00
• Cross-references Sierra 18-5128
• Cross-references CDI Electronics 187-6391

For additional Yamaha ignition coils and marine engine-control components, Browse more Engine Controls & Ignition for related replacement and service components.