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

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

$681.00 $987.00

or make 4 interest-free payments of $170.25 AUD fortnightly with Afterpay More info

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

Engine type 4-stroke, single-cylinder OHV petrol engine
Displacement 550 cc
Bore × Stroke 94.5 mm × 78 mm
Compression ratio 8.7 : 1
Rated output 13.2 kW @ 3600 rpm (18 HP)
Max torque 39.5 Nm @ 2500 rpm
Shaft type Vertical, 25.4 mm (1”) keyway
Rotation Counter-clockwise (PTO view)
Starting system Electric start
Ignition Transistorized magneto
Governor system Centrifugal mechanical
Oil capacity 1.5 L
Weight 41 kg

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.