QINLANAP ignition coil kit for Kawasaki FH601V–FH721V — 2-pack coils with starter solenoid & 2 spark plugs

QINLANAP 2-pack ignition coil modules with starter solenoid relay and two spark plugs for Kawasaki FH721V, FH601V, FH641V, FH661V and FH680V engines — a complete replacement kit to restore spark and starting performance.

If your Kawasaki-powered lawn mower is suffering from weak sparks, intermittent starting, or a misfiring cylinder, this kit provides the common ignition components technicians replace first. Designed to match OEM fitment for FH-series Kawasaki engines, the set includes two ignition coil modules, one starter solenoid relay and two spark plugs, and is intended as a direct replacement for part numbers 21171-0742, 21171-0713, 21171-7039 and 21171-0745. The components arrive ready for installation with standard mounting points and electrical connectors compatible with the referenced models.

How will these ignition coils affect engine start-up and running?

Fresh coils deliver a stronger, more consistent spark which helps the engine fire reliably on every crank. Replacing worn or damaged coils reduces misfires, hesitation under load and hard starting, especially after long storage or under heavy mowing conditions.

• Two coil modules to serve both cylinders or dual-coil configurations.
• Improved spark energy compared with aged coils for steadier RPM under load.
• Direct-fit connectors and mounting points for quick swap-out.

What does the starter solenoid relay in the kit do and when should I replace it?

The starter solenoid relay connects the starter circuit when you turn the key or press the start switch, enabling the starter to crank the engine. Replace it if you hear a clicking noise, experience no crank at all, or see corrosion/damage at the relay — those signs indicate poor electrical contact or internal failure.

• Included solenoid relay restores reliable starter engagement.
• Standard terminals for easy wiring to existing harnesses.
• Replaces worn contacts that cause intermittent cranking or no-crank conditions.

Are the included spark plugs ready to use, and how do they match my engine?

The kit includes two pre-specified spark plugs selected to fit the compatible FH series engines, allowing you to complete ignition service with a single purchase. Properly gapped plugs combined with fresh coils help maintain combustion efficiency and consistent throttle response.

• Two spark plugs sized for FH601V–FH721V engines.
• Pre-gapped to common aftermarket settings; verify gap before installation.
• Packaged with coils and solenoid for a one-stop ignition tune-up.

How difficult is installation and what should I prepare?

Installation is straightforward for anyone comfortable with small-engine maintenance and basic hand tools. Disconnect the battery, remove the old coils and solenoid, transfer any necessary brackets or insulators, and secure the new parts following torque specs and wiring orientation.

• Requires basic hand tools, socket set and possibly a torque wrench for mounting bolts.
• Disconnect battery or ignition power before starting to avoid shock or accidental crank.
• Check and set spark plug gap, inspect wiring harness and clean terminal connections.

Who is this for: This QINLANAP kit is for homeowners, landscapers and small-engine mechanics who own or service Kawasaki FH721V, FH601V, FH641V, FH661V and FH680V-equipped lawn mowers and need a complete ignition refresh. It suits anyone replacing old or failed coils, remedying starter relay issues, or performing scheduled ignition maintenance. If you prefer plug-and-play replacements that match Kawasaki part numbers 21171-0742, 21171-0713, 21171-7039 or 21171-0745, this set supplies the core components to get the engine back to reliable starting and running behavior.