21188-7002 Carburetor Fuel Solenoid Compatible with Kawasaki Engine FR651V FR691V FS730V FH430V FH541V FH580 FH381V 480V 541V 580V FR/FS/FX 481V

What It Is

This is a fuel shut-off solenoid for Kawasaki V-twin engines (FR, FS, FX, FH series) used on zero-turn mowers, lawn tractors, and commercial mowers. It stops fuel flow when the ignition is off to prevent flooding and backfiring.

Fitment & Compatibility

• Directly replaces OEM Kawasaki part 21188-7002 (also supersedes 21188-7001).
• Fits engines: FR651V, FR691V, FS730V, FH430V, FH541V, FH580V, FH381V, FH480V, FH541V, FH580V, and FR/FS/FX 481V.
• Check your engine model number (stamped on valve cover or shroud) — not just mower brand. Common on John Deere, Husqvarna, Kubota, and Scag zero-turns with Kawasaki engines.
• Measure the solenoid body length (should be ~2.2 inches) and thread pitch (M10x1.0) to confirm fit—some aftermarket units vary slightly.
• Aftermarket part — not OEM, but same function. Verify the plunger spring tension matches your old one; a weak spring can cause rough idle.

Key Things to Know

• Installation is simple — unplug wire, unscrew old solenoid (use a wrench on the hex base), screw in new one, reconnect. No carb removal needed.
• May need adjustment — if the plunger doesn’t fully retract when power is on, engine may stall under load. Check for 12V at the connector.
• Quality variance — at this price, expect plastic vs. metal body on OEM. Some users report failures after 1-2 seasons; keep your old one as a backup.
• Common gotcha — if your mower won’t start or runs rich, test the solenoid by applying 12V directly to the connector and listening for a click.

Should You Buy It

Buy this if you need a budget-friendly replacement for a failed fuel solenoid on a Kawasaki FR/FS/FX/FH engine and you’re okay with a non-OEM part that may have shorter lifespan. It’s a good quick fix for a $14 part, but for commercial use or long-term reliability, consider OEM.