15003-7131 Carburetor Kit Replacement for Kawasaki FH491V-AS04 FH491V-DS04-R FH491V FH580V FS541V FR600V FS600V for John Deere X300 X300R, Replace 15004-0822 15004-7060 Carb

What It Is

This is an aftermarket carburetor kit replacement for Kawasaki FH and FS series engines, commonly found on John Deere X300 and X300R lawn tractors. It’s designed to restore fuel delivery and engine performance when the original carburetor is clogged, worn, or leaking.

Fitment & Compatibility

• Direct fit for: Kawasaki FH491V-AS04, FH491V-DS04-R, FH491V, FH580V, FS541V, FR600V, FS600V engines.
• Replaces OEM part numbers: 15004-0822 and 15004-7060.
• Not a universal fit – verify your engine model number (stamped on the valve cover or engine shroud) matches one listed.
• Deck size doesn’t matter – this fits the engine, not the mower deck. But confirm your mower (e.g., John Deere X300) uses one of the listed Kawasaki engines.
• Measurement check: Compare the mounting flange, fuel inlet orientation, and gasket shape to your old carb. Aftermarket kits can vary slightly in casting.

Key Things to Know

• Quality concerns: 3.2/5 rating with only 5 reviews suggests inconsistent fit or QC. Some users report needing to adjust the float height or clean debris from the jets before installation.
• Installation difficulty: Moderate. You’ll need basic tools (screwdrivers, socket set) and carburetor cleaner. Expect to spend 30–60 minutes if you’ve done it before.
• Common gotchas: The fuel bowl gasket may be thinner than OEM, leading to leaks if over-tightened. Also, the included jets may not match your engine’s tuning – keep your old jets if they’re clean.
• No instructions included – rely on a service manual or YouTube video for your specific engine.

Should You Buy It

If you need a budget fix for a non-running mower and are comfortable with carburetor tuning, this kit can work. But with a low rating and few reviews, it’s a gamble – expect possible fitment tweaks or quality issues. For a reliable repair, consider an OEM Kawasaki kit (15004-0822) unless you’re on a tight budget and can return it if needed.