24hp Vertical 1"x3-5/32" Shaft, Fuel Pump, Electric Start, Kawasaki Engine

What It Is

This is a complete 24hp Kawasaki vertical-shaft engine (1" x 3-5/32" shaft) with electric start and fuel pump, designed as a direct replacement for zero-turn mowers, riding mowers, or commercial stand-on units needing a reliable, high-torque powerplant. It’s intended for heavy-duty residential or light commercial use.

Fitment & Compatibility

Before purchasing, confirm these four measurements and specs:

• Shaft size: 1" diameter x 3-5/32" length – must match your mower’s blade hub or pulley. Measure your old shaft end to end.
• Crankshaft type: This is a vertical shaft – only for mowers with the engine mounted upright. Do not use on horizontal-shaft equipment.
• Mounting pattern: Check your mower’s engine mounting bolt pattern (typically 4-bolt, but spacing varies). Measure center-to-center distances.
• Deck size & brand: Fits most 48"–72" decks on brands like Gravely, Husqvarna, John Deere, Bad Boy, and others that accept Kawasaki FX or FR series engines. Not a universal fit – verify your mower’s OEM engine model (e.g., FX730V or FR730V) for direct swap.
• Fuel pump: This engine includes a pulse-operated fuel pump. Ensure your mower has a pulse port on the crankcase or a compatible fuel line routing.

Key Things to Know

• Quality: Kawasaki is a top-tier brand for commercial-grade engines; 4.4 stars from 38 reviews suggests solid reliability, but check for recent feedback on starter or pump issues.
• Installation difficulty: Moderate to high – expect to swap wiring harness, throttle/choke cables, and fuel lines. Not a simple plug-and-play unless you’re replacing an identical Kawasaki model.
• Gotcha: The 1" shaft may require a different blade adapter or pulley if your old engine had a 7/8" or 1-1/8" shaft. Measure twice.
• Warranty: Typically 3-year residential/1-year commercial – confirm with seller, as aftermarket warranty terms vary.

Should You Buy It

If you need a reliable, 24hp Kawasaki replacement for a zero-turn or large riding mower and have verified shaft size, mounting pattern, and fuel pump compatibility, this is a strong choice for its price and proven performance. Avoid if you’re looking for a cheap fix or haven’t confirmed fitment – returns on engines are cumbersome. Best for owners comfortable with intermediate mechanical work.