Honda 20.8 HP Horizontal Engine | 688cc (15.5 kW) @ 3,600 rpm | Q – Type | 2.90″ x 1.0″ Shaft | Elect Start / Control Box
PRICE DOES NOT INCLUDE SETUP OR SHIPPING – PRICED FOB FACTORY
*Must Add Muffler Kit To Complete
Honda V-Twin Engines
Honda V-twin engines offer higher horsepower, improved adaptability, quiet operation, and greater fuel efficiency. Not to mention a 3 year warranty.
Common Applications
- Pressure washers
- Commercial lawn and garden equipment
- Tillers / cultivators
- Generators
- Forestry equipment
- Construction / industrial equipment
- Agricultural equipment
- Small vehicles
- Water pumps
GX630 | GX660 | |
Engine Type | Air-cooled 4-stroke OHV | Air-cooled 4-stroke OHV |
Bore x Stroke | 78 X 72 mm | 78 X 72 mm |
Displacement | 688 cm3 | 688 cm3 |
Net Power Output* | 20.8 hp (15.5 kW) @ 3,600 rpm | 21.5 hp (16.0 kW) @ 3,600 rpm |
Net Torque | 35.6 lbs ft (48.3 Nm) @ 2,500 rpm | 35.6 lbs ft (48.3 Nm) @ 2,500 rpm |
PTO Shaft Rotation | Counterclockwise (from PTO shaft side) | Counterclockwise (from PTO shaft side) |
Compression Ratio | 9.3:1 | 9.3:1 |
Lamp/Charge coil options | 2.7A, 17A, 26A | 2.7A, 17A, 26A |
Carburetor | Horizontal type, two barrel butterfly valve, internal vent | Horizontal type, two barrel butterfly valve, internal vent |
Ignition System | Digital CDI with variable ignition timing | Digital CDI with variable ignition timing |
Starting System | Electric | Electric |
Lubrication System | Forced lubrication | Forced lubrication |
Governor System | Mechanical | Mechanical |
Air Cleaner | Dual element | Dual element |
Oil Capacity | 2.1 US qt (2.0l) | 2.0 US qt (1.9l) |
Fuel | Unleaded 86 octane or higher | Unleaded 86 octane or higher |
Dry Weight | 96.8 lb (44 kg) | 96.8 lb (44 kg) |
GX630 | GX660 | |
Length (min) | 15.9″ (405 mm) | 15.9″ (405 mm) |
Width (min) | 16.1″ (410 mm) | 16.1″ (410 mm) |
Height (min) | 17.2″ ( 438 mm) | 17.2″ ( 438 mm) |
Fuel Efficient Operation
Fuel Efficient Operation
- Fuel economy is similar to fuel injection, with the simplicity of carburetion.
- Digital CDI ignition system with variable timing Learn More
- Includes a rev limiter to protect against damage from over-revving.
- Two barrel inner-vent carburetor for more precise fuel metering
- Insert style rod bearings
Smooth Performance
Smooth Performance
- Integrated cylinder and head Learn More
- Racing inspired forged steel connecting rods
Proven Reliability
Proven Reliability
- High capacity pump facilitates consistent oil delivery Learn More
- Dual cylindrical air filter
- Large diameter air intake for superior cooling
- 3-Year Limited Warranty
- Oil Alert Learn More
Easy Starting
Easy Starting
- Automatic mechanical de-compression system Learn More
- Variable ignition timing
High Output Performance
High Output Performance
- Hemispherical combustion chamber delivers rapid combustion Learn More
- 9.3:1 compression ratio generates high power output without the need for premium fuel
- Forged steel crankshaft
- Pressure fed crankshaft bearings
Exceptionally Quiet
Exceptionally Quiet
- High capacity 36 blade cooling fan
- Aluminum push rods with steel tips – lighter weight, lower vibration, and quieter operation
Easy To Use & Maintain
Easy To Use & Maintain
- Hour meter available
- Conveniently located controls, with several configurations available based on user preference
- Automotive-type spin-on oil filter
Honda Aluminized Muffler + Shield (Starter Side) + Manifold (Starter Side) | For GX630,GX660,& GX690
$250.00
Honda Engine RH Muffler (High Mount) | For GX630, GX660, GX690, GX700, & GX800
$201.00
Weight | 99 lbs |
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