YAMAKATO ignition coil for Briggs & Stratton 591459/492341 — single coil kit with spark plug & air gap gauge

YAMAKATO 591459 (492341 / LG492341) is a replacement ignition coil engineered to restore spark performance on compatible Briggs & Stratton, Toro, MTD, Craftsman and Cub Cadet small engines.

This aftermarket ignition coil from YAMAKATO is supplied as a single high-quality unit packaged with a spark plug and an air gap gauge, designed to match fitment for engines using part numbers 591459, 492341, or LG492341. It’s intended for lawn mowers, riding tractors and other small-engine equipment where the original coil has failed or is producing weak spark. While manufactured to meet practical service needs, buyers should verify compatibility and warranty or CARB certification requirements with their engine maker or service professional before installation.

Will this ignition coil fit my Briggs & Stratton engine?

Compatibility is based on the engine’s OEM part number and the physical mounting and connector layout. This YAMAKATO coil is produced to match the dimensions and terminal placement of Briggs & Stratton parts 591459, 492341 and LG492341, common across many walk-behind mowers and small tractors.

• Fits engines listing 591459, 492341 or LG492341 as the ignition coil part.
• Commonly used in Briggs & Stratton, Toro, MTD, Craftsman, Cub Cadet models.
• Check mounting bolt spacing and wire terminals against your old coil before purchase.

How does this YAMAKATO coil improve engine performance?

Replacing a weakened or nonfunctional coil restores reliable spark delivery, which in turn supports consistent starting and stable idling. The included air gap gauge helps set the correct clearance between the coil and flywheel for optimal spark timing and strength.

• Delivers strong spark to improve cold starts and throttle response.
• Comes with a spark plug to simplify installation and testing.
• Air gap gauge lets you adjust the coil-to-flywheel gap accurately for better ignition timing.

What comes in the package and what should I expect during installation?

Each package contains one YAMAKATO ignition coil, a replacement spark plug and an air gap gauge, all in a protective bubble bag. Installation is a straightforward mechanical swap for anyone familiar with small-engine maintenance, but basic tools and safety precautions are required.

• Pack includes: 1 ignition coil, 1 spark plug, 1 air gap gauge.
• Typical install: remove engine cover, disconnect old coil wires, unbolt old coil, fit new coil and set gap, reconnect wires.
• Follow engine manufacturer torque specs and safety steps; if unsure, consult a mechanic.

Are there any regulatory or warranty notes I should know?

This product is an aftermarket replacement part and not an original equipment manufacturer (OEM) item. Customers are advised to confirm any warranty implications and CARB certification status with their engine manufacturer or a qualified technician before use.

• Aftermarket part — not branded OEM from Briggs & Stratton.
• Verify CARB or emissions compliance if required in your area.
• Check vehicle/equipment warranty terms prior to installation to avoid voiding coverage.

Who is this for: This YAMAKATO ignition coil is aimed at homeowners, landscapers and small-engine technicians who need a cost-effective replacement for a failed coil on Briggs & Stratton compatible equipment. It’s particularly useful if you want a ready-to-install kit that includes a new spark plug and an air gap tool to ensure correct setup. If you require certified OEM parts for warranty or regulatory reasons, consult your engine manufacturer first; otherwise, this unit offers a practical option for restoring engine spark and getting equipment back into service quickly.