YAMAKATO Ignition Coil Kit 21171-0743 — 2-Coil Kit with Spark Plugs & Mounting Bands for Kawasaki V-Twin

This YAMAKATO ignition coil kit replaces OEM Kawasaki part number 21171-0743 and compatible equivalents for a range of FR, FX and FS series small engines. Designed for V-twin lawnmower and garden tractor engines, the kit arrives with two coils, two spark plugs and four mounting bands so you can service both cylinders in a single maintenance session. The components are manufactured to supplier standards used by established brands, offering a practical balance of fit, function and value.

Which engines and machines will this YAMAKATO coil fit?

The coils are compatible with multiple Kawasaki engine models including FR541V, FR600V, FR651V, FR691V, FR730V, FX751V, FX730V, FX850V and related FS/FR/FX series. They are also marketed for use in mower and tractor applications from John Deere, Cub Cadet and Toro when those machines use the 21171-0743 part number.

• Fits Kawasaki part number 21171-0743 and several KM/21171 OEM equivalents.
• Compatible with common V-twin engines (15–27 HP range depending on model).
• Works with select John Deere X300/X530 and Cub Cadet LTX/Toro ZTR models that specify 21171-0743.

How does this kit simplify replacement and maintenance?

This package includes everything needed to replace both ignition coils on a two-cylinder engine: two coils, two spark plugs and four mounting bands. That reduces downtime by avoiding multiple orders and ensures matched parts across both cylinders for consistent ignition performance.

• Two coils eliminate the need to buy a second unit separately.
• Included spark plugs provide correct gap and compatibility.
• Mounting bands and basic hardware let you complete installation quickly.

What quality and compatibility details should I check before buying?

YAMAKATO lists this product as a '3A Quality' replacement produced through manufacturers experienced in supplying established brands. However, fitment is specific: the 21171-0743 cannot replace the 21171-7034 variant used on some John Deere models, so verify the OEM part number on your engine plate or existing coil before ordering.

• Confirm the OEM part number matches 21171-0743 on your engine or parts list.
• Note the product is a replacement part built to supplier standards rather than an OEM-branded coil.
• Check included images and measurements for clearance and connector orientation.

How will installing these coils affect mower performance?

Replacing worn or damaged coils restores a stable high-voltage spark, which helps consistent starting and smoother idle under normal operating conditions. While ignition coils are a component of overall engine health, installing matched replacement coils and fresh plugs removes a common cause of misfires and uneven running.

• Helps reduce misfiring and improve starting reliability when coils were failing.
• Matched coil pair helps maintain balanced ignition between cylinders.
• Fresh spark plugs included to restore proper combustion spark gap and continuity.

Who is this for: This YAMAKATO ignition coil kit is intended for DIY mechanics, landscapers and fleet managers who need a cost-effective, matched replacement for Kawasaki 21171-0743-equipped V-twin engines. It suits owners of compatible John Deere, Cub Cadet and Toro equipment who confirmed their machine uses the 21171-0743 part number and want to replace both coils and plugs in one service interval.