KingTech 18HP Ride-On Mower Engine 550cc 4-Stroke Vertical Shaft

When your ride-on mower's engine calls it a day, the KingTech 18HP Vertical Shaft Engine delivers a powerful, reliable replacement that fits straight into your existing setup. This 550cc 4-stroke OHV petrol motor produces serious torque for Australian conditions, handling thick buffalo and kikuyu grass without breaking a sweat. The vertical shaft design and universal bolt pattern mean it drops into most Briggs and Stratton or Honda mounting configurations with no modifications required. Electric start and transistorized magneto ignition ensure hassle-free starts every time, even after long periods in the shed.

Firing up this engine feels like giving your mower a new heartbeat. The cast-iron cylinder bore and low-vibration balance work together to reduce wear on your mower's frame and drive belts, extending the life of your entire machine. The centrifugal mechanical governor keeps engine speed consistent under varying load conditions, so your cutting deck performs evenly whether you're trimming a lightly overgrown patch or tackling waist-high growth at the edge of your property.

Built for the Australian backyard, this KingTech powerplant combines 18 horsepower of dependable performance with the durability to handle season after season of weekend mowing. The 1-inch output shaft with keyway provides a secure PTO connection, while the 8.7:1 compression ratio optimises power delivery without sacrificing fuel efficiency. Backed by solid engineering and a reputation for reliability, this engine is the straight-forward upgrade that just works -- no fuss, no drama.

Features

• 18 Horsepower output delivers strong, steady performance for ride-on mowers.
• 550 cc 4-stroke OHV engine for efficient combustion and low fuel burn.
• Vertical shaft design ideal for mower decks and garden tractors.
• Electric start system with electronic ignition for quick, reliable starts.
• Cast-iron cylinder bore adds durability and long engine life.
• 1" (25.4 mm) output shaft with keyway for secure PTO connection.
• 8.7:1 compression ratio for balanced power and smooth operation.
• Mechanical governor maintains consistent engine speed under load.
• Transistorized magneto ignition for clean, spark-steady performance.
• Universal bolt pattern fits many Briggs and Stratton or Honda setups.
• Low-vibration balance reduces wear on mower frames and belts.

Specifications

Package Content

• 1 x KingTech 18HP Vertical Shaft Engine
• 1 x Installation Bolt Details sheet