YAMAKATO ignition coil for Briggs & Stratton LG492341 / 591459 — single unit with spark plug & gap gauge

The YAMAKATO 591459 / 492341 (LG492341) ignition coil is an aftermarket replacement that restores spark performance on compatible Briggs & Stratton, Toro, MTD, Craftsman and Cub Cadet small engines.

Designed as a direct-fit aftermarket component, this YAMAKATO ignition coil is supplied as a single unit and packaged with a spark plug and an air gap gauge. It replaces Briggs & Stratton part numbers 591459 and 492341 (LG492341) and fits a range of walk-behind mowers, riding tractors and other small-engine equipment. Because it is an aftermarket part, you should verify warranty and CARB requirements with your engine manufacturer before installation.

Will this ignition coil fit my Briggs & Stratton engine?

Compatibility hinges on part number match and the engine model. The YAMAKATO 591459/492341 is intended to replace the specified Briggs & Stratton part numbers; check your engine’s parts diagram or sticker for a matching number.

• Replaces Briggs & Stratton part #591459 and #492341 (LG492341).
• Commonly used in Briggs & Stratton, Toro, MTD, Craftsman, Cub Cadet equipment.
• Fits many lawn mowers and riding tractors — confirm by engine model or part list.

How do I install the YAMAKATO ignition coil?

Installation follows the same steps as the original coil: disconnect the battery or spark wire, remove the flywheel cover, unbolt the old coil, set the correct air gap, and secure the new coil. The package includes an air gap gauge to help set the gap to manufacturer specification.

• Disconnect spark wire and remove engine cover for safe access.
• Unbolt old coil and remove, keeping mounting hardware if compatible.
• Use included air gap gauge to set correct distance before final tightening.
• Reconnect spark lead and test starting/idle functions after installation.

What comes in the box and what quality can I expect?

Each package contains one ignition coil, a replacement spark plug, and an air gap gauge, all sealed in a small bubble bag. YAMAKATO labels this as a 3A quality aftermarket part intended to meet or approach OEM function at a lower price point.

• One ignition coil per pack, plus a spark plug and air gap gauge included.
• Packaged in protective bubble bag to prevent transit damage.
• Aftermarket component — helpful cost-saving alternative to OEM units.

Are there any certification or warranty considerations?

This is an aftermarket replacement and may not carry the same manufacturer warranty or CARB certification as OEM parts. Buyers should consult their engine maker or a repair professional to confirm compatibility with emissions regulations and warranty terms before using the part.

• Not an OEM Briggs & Stratton part; check warranty implications.
• Confirm CARB compliance if required by local regulations.
• Seek professional advice if uncertain about installation or certification.

Who is this for: This YAMAKATO ignition coil is intended for homeowners and equipment technicians who need an affordable, direct-replacement ignition coil for small engines that cite Briggs & Stratton part numbers 591459 or 492341 (LG492341). It’s especially useful for restoring spark on older mowers and tractors where a cost-effective aftermarket solution is preferred, provided the buyer checks fitment and any regulatory requirements first.