18HP Vertical Shaft Lawn Mower Engine Petrol Motor 4 Stroke OHV Ride On

When your mower’s heart gives out, drop in the KingTech 18HP Vertical Shaft Engine and bring it back to life. This 550cc 4-stroke OHV petrol motor packs serious grunt with smooth, dependable power that gets the job done every time. Built for ride-on mowers, this motor slots in where most Briggs and Stratton or Honda mounts sit — no fuss, just fit and fire. Designed for Aussie yards and conditions, it’s got the torque to cut thick grass and the reliability to run season after season. If you want a straight-talking upgrade that just works, KingTech’s got your back.

Key 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

Installation Bolt Details
• Mounting interface includes 3 through holes of Ø 8.8 mm and 1 blind hole of Ø 8.8 mm for secure attachment.
• Bolts for the solenoid valve are not required for installation.

*For returns due to change of mind, a 20% restocking fee will be applied.

*Original freight cost will not be refunded where freight costs were listed separately.