General Purpose Engine

Engine - GX690H

Honda V-twin engines offer higher horsepower, quiet operation, and greater fuel efficency.

- Overhead valve, 90° V-Twin cylinder
- 18.75kW (25.0HP)/3600rpm and 688 cm³ Displacement
- 6.7 Liters/h
- 1 year warranty

Common Applications

  • Pressure washers
  • Commercial lawn and garden equipment
  • Tractor*
  • Generators*
  • Construction / industrial equipment*
  • Agricultural equipment
  • Water pumps


Engine type 4-stroke, overhead valve 90° V-twin cylinder
Displacement (cm3) 688 cm³
Bore and stroke 78.0 x 72 mm
Compression ratio 9.3
Gross power (SAE J1995) 18.75kW (25.0HP)/3600rpm
Net Power (SAE J1349)* 16.5kW (22.1 HP)/3600 min-1 rpm
Max. Net Torque (SAE J1349)* 48.3 Nm (4.93 kgf-m)/2,500 rpm
Fuel consumption (@ rated power) 6.7 L/h
Fuel tank capacity N/A
Recommended fuel Unleaded Gasoline (Oktan 86 or higher)
Ignition system CDI type Magneto ignition
Spark plug ZFR5F (NGK)
Starting system Starter motor
Air cleaner Dual type
Oil Capacity 1.5 Liters, 1.7 Liters (With oil filter replacement)
Recommended oil SAE 10W-30 (API Service Class SE or later)
Dimensions 405 x 410 x 438 mm
Dry Weight 44.4 kg

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