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Honda GX630RH-QAF Gas Engine Electric start 1" straight side shaft 17AMPS
Honda GX630RH-QAF1 Small Gas Engine 21HP

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GX630RH-QAF On Sale
Price: $2,388.00
Sale Price: $2,282.00

Availability: Usually Ships in 24 Hours
Product Code: GX630RH-QAF


Honda GX630RH-QAF Small Gas Engine Electric Start

With 1" Diameter, 1/4" Keyway Shaft

*** The Honda GX630RH-QAF is the same as the GX630RH-QAF1, but does not include a control box.
* Needs ignition switch and harness if replacing old engine.

These premium motors are fuel efficient, easy starting and smooth performance. Perfect for tractor repower, generators, pressure washers, and various industrial and commercial uses. This convenient, heavy duty and reliable 4 stroke OHV twin cylinder engine does the job for many applications. Also, offering a 3-year limited warranty on these motors. Your order ships quickly with expert turnaround time in our fully stocked warehouse. Packaged with care, Carroll Stream Motor Company provides free shipping.

This Honda engine is a 4 Stroke OHV twin cylinder, which is a 78 X 72 stroke. It is a 688cc, 20.8 HP and 3600 RPM.

This Honda small motor is built with quality components and is ready to outlast the competition. Purchase now to take advantage of our free shipping and quick turnaround time. Or, call if you have questions! 888-208-2088, 248-628-4638.

Browse all of our Honda horizontal shaft options:

98cc GX100T-QA2 Recoil Start
118cc GX120UT2-HX2 Recoil Start
118cc GX120UT3-QX2 Recoil Start
160cc 4GC160LA-QHA Recoil Start (Replaces GC160LA-QHG, GC160LAQHG)
163cc GX160UT2-QX2 Recoil Start
163cc GX160-HX2 Recoil Start
196cc GX200UT2-QXE2 Electric Start
196cc GX200UT2-QX2 Recoil Start
270cc GX270UT2-HA2 Recoil Start
270cc GX270UT2-QAE2 Electric Start (Replaced by GX270UT2X-QA2)
270cc GX270UT2-QA2 Recoil Start (Replaced by GX270UT2X-QA2)
389cc GX390UT2-QA2 Recoil Start
389cc GX390UT2-QAE2 Electric Start (Replaced by GX390UT2X-QAE2)
389cc OHV GX390UT2-QC9 Recoil Start
389cc GX390UT2X-HA2 Recoil Start
389cc GX390UT2-QNE2 Electric Start (Replaced by GX390UT2X-QNE2)
688cc GX630RH-QXA Electric Start
688cc GX630RH-QAF Electric Start
688cc GX630RH-QAF1 Electric Start
688cc GX630RH-QZB2 Electric Start
688cc GX630RH-QZB3 Electric Start
688cc GX630RH-TXF2 Electric Start
688cc GX690RH-TAF1 Electric Start
688cc GX690RH-TAF1 Electric Start
  • Specifications
  • Make
  • Honda
  • Model
  • GX630RH-QAF
  • Type
  • Small Engine
  • Fuel
  • Gas Unleaded 86 Octane or Higher
  • Engine Type
  • 4 Stroke OHV Twin Cylinder
  • Bore/Stroke
  • 78 X 72
  • Displacement
  • 688cc
  • Compression Ratio
  • 9.3:1
  • Max Power
  • 20.8 HP @ 3600 RPM
  • Max Torque
  • 35.6 ft. lbs. @ 2500 RPM
  • Ignition Type
  • Digital CDI with Variable Timing
  • Dimensions (L x W x H)
  • 16 x 16.25 x 17.25 in.
  • Starting Type
  • Electric Start
  • Charging System
  • 17 Amp
  • Oil Capacity
  • 2.1 Qts
  • Dry Engine Weight
  • 97 lbs.
  • Shaft Type
  • Keyed - Straight
  • Shaft Diameter
  • 1" Diameter, 1/4" Keyway
  • Shaft Length
  • 2-7/8"
  • Shaft I.D. Thread Size
  • 3/8"-24 Drilled and Tapped
  • Bolt Pattern
  • 4 Bolt
  • Oil System
  • Pressure lubrication, Oil Alert
  • Reduction Type
  • None
  • Engine Cooling Type
  • Forced Air Cooling
  • PTO shaft Rotation
  • Counterclockwise (from PTO shaft side)
  • Governor System
  • Centrifugal Mass Type
  • Air cleaner
  • Dual Element
  • Features
  • 3-Year Limited Warranty
  • Remote Throttle and Choke
  • Two barrel inner-vent carburetor for more precise fuel metering
  • Cast Iron Sleeve
  • Smooth Performance
  • Easy to Use and Maintain
  • Simple throttle control
  • Easy, convenient, heavy duty control box
  • Easily accessible spark plug
  • Easy Starting
  • Hemispherical combustion chamber delivers rapid combustion
  • Automatic mechanical de-compression system
  • Emissions Compliant
  • Lower emissions, same power output!
  • CARB and EPA certified
  • No catalyst necessary
  • Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficency
  • OHV design for increased efficiency and optimal power transfer
  • High compression ratio for better fuel efficiency
  • Precision engineered components result in lower vibration
  • Ball bearing supported crankshaft for greater stability
  • Exceptionally Quiet
  • Carburetor Butterfly
  • Pressure fed crankshaft bearings
  • Reduced mechanical noise due to light weight, noise-reducing materials
  • Forged steel crankshaft and rigid crankcase
  • Helical cut gears
  • Sophisticated air intake system
  • Proven Reliability
  • New carburetor chamber coating and carburetor filter help to protect against fuel impurities
  • Dual element air cleaner
  • Fuel Valve
  • Cross Reference Guide
  • Kohler: CH640
  • Briggs & Stratton: 386447
  • Accessories
  • User Manual

Related accessories & parts:
Genuine Honda Side Mount Muffler — Fits Some GX630, GX690 Engines V2MFLRSIDE, 660890. Requires Honda OEM Base Oil Filter 15410-Z6L-800 Genuine Honda OEM Base Oil Filter 15410-Z6L-800 Genuine Honda Muffler Kit, Left Mount, Muffler Vents to the Starter Side of the Engine V2MFLRHIL, 660870 Pack of 4 Opti-4 10W30 34 oz bottle for engines up to 31hp
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Honda Side Mount Muffler Fits Some GX630 Engines V2MFLRSIDE Honda OEM Base Oil Filter 15410-Z6L-800 Honda Muffler Kit, Left Mount V2MFLRHIL Opti-4 10W30 34 oz bottle for engines up to 31hp 43121
Genuine Honda Muffler Kit, Right Mount, Muffler Vents to the Oil Filter Side of the Engine V2MFLRHIR, 660880 Genuine Honda OEM Air Filter 17210-Z6L-010 Genuine Honda OEM Oil Filter 15400-PLM-A01PE, 15400-PLM-A02PE
Price: $229.95

Sale Price: $34.95

Sale Price: $11.99

Honda Muffler Kit, Right Mount V2MFLRHIR Honda 17210Z6L010 Air Filter Honda 15400PLMA01PE Oil Filter

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