KAWASAKI FX801V-NS00 25.5HP VERTICAL SHAFT ENGINE

The Kawasaki FX801V-NS00 is a powerful 25.5HP, 852cc commercial-grade V-Twin engine engineered for professional mowing, turf maintenance, and industrial applications. Designed to deliver strong torque, smooth power delivery, and long service life, the FX801V is widely trusted by contractors and equipment manufacturers worldwide.

Built around a 90° V-Twin OHV configuration, this engine offers excellent balance, reduced vibration, and reliable performance under continuous high-load operation. A 1-1/8″ vertical crankshaft ensures compatibility with a wide range of commercial zero-turn mower decks and heavy-duty equipment.

To handle extreme operating conditions, the FX801V features pressurised lubrication with an integrated oil cooler, a heavy-duty canister air filtration system, and cast-iron cylinder liners for maximum durability. The internally vented carburettor, electronic ignition, and automatic compression release provide stable fuel delivery and dependable starting in hot, dusty, and high-grass environments.

This engine is an excellent choice for contractors, acreage owners, and fleet operators who demand reliable commercial power without compromise.

Key Features

• 25.5HP Kawasaki commercial-grade V-Twin engine

• 852cc displacement for strong torque and cutting power

• 90° V-Twin OHV design for smooth, balanced operation

• 1-1/8″ vertical crankshaft for broad deck compatibility

• Pressurised lubrication system with integrated oil cooler

• Heavy-duty canister air filter designed for dusty conditions

• Internally vented carburettor with fuel shut-off solenoid

• Electronic spark ignition for reliable starting

• Automatic compression release for easier cranking

• Cast-iron cylinder liners for extended engine life

• Rotating debris/grass screen for improved cooling airflow

Technical Specifications

• Horsepower: 25.5 HP (19.0 kW)

• Maximum Torque: 44.6 ft-lb (60.5 Nm) @ 2400 RPM

• Displacement: 852 cc

• Engine Type: 4-stroke, vertical-shaft, air-cooled V-Twin OHV

• Crankshaft Diameter: 1-1/8″

• Oil Capacity: 2.4 litres (2.5 qt)

• Dry Weight: 56.4 kg

Applications & Compatibility

• Commercial zero-turn mowers

• Residential and acreage ride-on mowers

• Industrial turf and landscaping equipment

• Heavy-duty machinery requiring a 25HP-class vertical shaft engine

Suitable for equipment requiring Kawasaki FX801V-series vertical shaft engines. Always confirm shaft size, wiring, and mounting requirements before purchase.

Why Choose the Kawasaki FX801V?

• Built for continuous commercial operation

• Strong torque for thick, wet, or overgrown grass

• Excellent cooling and filtration for Australian heat and dust

• Proven Kawasaki reliability and long service life

Important Notes

• Fuel tank and muffler are not included and must be purchased separately

• Some FX801V engines manufactured between 2021–2023 were subject to a Kawasaki safety recall. Always verify the engine serial number with Kawasaki before installation