The Honda GX630RHXQYF engine does not include a fuel tank and is designed to use an external fuel source.
Free Gift Card Details
- The promotion will be automatically applied on the Shopping Cart page.
- To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
- Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
- E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
- Free e-gift cards expire 10/01/26.
- Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
- Valid online and in participating retail stores.
- Limited-time offer. Subject to change without notice.
Honda Engines, HORIZONTAL ENGINE 630CC RQYF, Engine Displacement 688 cc, Engine Type GX Series OHV V-twin Commercial-duty, Shaft Diameter 1 in, Model# GX630RHXQYF

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

Click or Tap image to Zoom
Shipping:
Factory shippedStore Pickup:
Not available - online only
- Model# GX630RHXQYF; Honda 688cc, 20.3 HP air-cooled, 4-stroke V-twin engine with 1in. dia. x 2 29/32in.L horizontal shaft
- OHV overhead valve design
- Digital CDI ignition coil ensures improved fuel economy and lowered emissions
- 5in., 6 1/2in., 7 3/4in. bolt circle; 7 11/16in. L x 3 25/64-4 21/32in. W mounting base
- Integrated cylinder bore
See full description
Description
Key Specs
Reviews
Q & A
Accessories
Warranty
Compare
Product Summary
The image shown is not reflective of the actual item shipped. There is no control panel as shown in the image. Not for sale in CA.
What's Included
- (1) Engine, Model# GX630RHQYF
Features + Benefits
- Model# GX630RHXQYF; Honda 688cc, 20.3 HP air-cooled, 4-stroke V-twin engine with 1in. dia. x 2 29/32in.L horizontal shaft
- OHV overhead valve design
- Digital CDI ignition coil ensures improved fuel economy and lowered emissions
- 5in., 6 1/2in., 7 3/4in. bolt circle; 7 11/16in. L x 3 25/64-4 21/32in. W mounting base
- Integrated cylinder bore
- Improved air cleaning allows for up to 5 times longer intervals between filter changes
- Not for sale in CA
Key Specs
| Attribute | Specification |
|---|---|
item# | 166132 |
Brand | Honda Engines |
Manufacturer's Warranty | 3 year limited warranty |
Ship Weight | 111.0 LB |
Engine Displacement | 688 cc |
Engine Type | GX Series OHV V-twin Commercial-duty |
Shaft Diameter | 1 in |
Shaft Length | 2.9 in |
Start Type | Electric |
Shaft Keyway | 0.25 in |
Net Torque | 35.6 ft-lbs. |
Crankshaft | Q-type |
PTO Height | 5.25 in |
Cylinders (qty.) | 2 |
Cylinder Bore | Integrated |
Net Power Output | 20.8 HP |
Compression Ratio | 9.3:1 |
| Attribute | Specification |
|---|---|
Fuel Tank | No |
Oil Capacity | 2 qt |
Low Oil Alert | Yes |
Shaft Rotation (From PTO Shaft Side) | Counter Clockwise |
Governor System | Mechanical |
Ignition System | Electonic, Digital CDI W/variable Ignition Timing |
Carburetor | 2-barrel, Fuel Cut Solenoid, Inner Vent |
Lubrication System | Full Pressure |
Cooling System | Air |
Bore | 3.1 in |
Stroke | 2.8 in |
Air Cleaner Type | Dual Element |
Choke Control | Remote |
Throttle Control | Remote |
Charging System Amps | 17 |
Muffler Included | No |
Reviews
Questions & Answers
Questions
-
· a month ago
Does the motor have a fuel tank
1 answer-
ProductExpert10· a month ago
Helpful?
-
-
· 4 months ago
Is the output shaft threaded?8
1 answer-
ProductExpert11· 4 months ago
The engine will come with a straight shaft. The shaft is not threaded.
Helpful?
-
-
· 5 months ago
Is there a remote oil filter mounting kit for this engine?
1 answer-
ProductExpert6· 5 months ago
A remote oil filter mounting kit would not be available for this engine.
Helpful?
-
-
· 9 months ago
What is the max rpm?
1 answer-
ProductExpert5· 9 months ago
The Maximum is 3600 RPM.
Helpful?
-
-
· 10 months ago
what is the horsepower
1 answer-
PowerhorseExpert10· 10 months ago
The Honda GX630RHQYF is a 688cc horizontal shaft V-twin engine that produces 20.8 HP at 3,600 RPM
Helpful?
-
-
· 2 years ago
WHAT DOES RHQYF MEAN?
1 answer-
ProductExpert11· 2 years ago
The model number specifies the differences in the options that the engine will consist of. This engine will have a straight shaft, oil pressure switch, remote throttle, remote choke, 12 amp charge coil, oil filter, screen fan cover, standard air filter, electric starter, 20 amp regulator and a diaphragm fuel pump.
Helpful?
-
-
· 2 years ago
what type ground + or -
1 answer-
ProductExpert23· 2 years ago
The Honda V-Twin Horizontal OHV Engine with Electric Start (Model GX630RHQYF) uses a negative ground system.
Helpful?
-
-
· 3 years ago
specifications on height and width please
1 answer-
ProductExpert38· 3 years ago
The overall dimensions for this will be 16"L X 18"W X 18"H.
Helpful?
-
-
· 3 years ago
Can you ship this engine to California
1 answer-
ProductExpert37· 3 years ago
This engine cannot be shipped to California.
Helpful?
-
-
· 5 years ago
Any information on fuel consumption @ 100% 75% 50% 25% ??
1 answer-
ProductExpert12· 5 years ago
The fuel consumption of this engine will average between 1 and 1.5 gallons depending on the application in which the engine is used.
Helpful?
-
Accessories We Recommend
This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.
Warranty
Manufacturer's Warranty
3 year limited warranty
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Repair Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
Compare with Most Popular in Horizontal Engines
See All Horizontal Engines
See All Honda Engines Horizontal Engines
Currently Viewing This Product
$1829.99Shipping:
Factory shippedStore Pickup:
Not available - online only
- $1929.99
Shipping:
Factory shippedStore Pickup:
Not available - online only
- $1929.99
Shipping:
Factory shippedStore Pickup:
Not available - online only
- $1829.99
Shipping:
Factory shippedStore Pickup:
Not available - online only
Specifications
688 cc
688 cc
688 cc
688 cc
GX Series OHV V-twin Commercial-duty
GX Series OHV V-twin Commercial-duty
GX Series OHV V-twin Commercial-duty
GX Series OHV V-twin Commercial-duty
1 in
1 in
1 in
1 in
2.9 in
2.9 in
2.9 in
2.9 in
Electric
Electric
Electric
Electric
0.25 in
0.25 in
0.25 in
0.25 in
35.6 ft-lbs.
35.6 ft-lbs.
35.6 ft-lbs.
35.6 ft-lbs.
Q-type
Q-type
Q-type
Q-type
5.25 in
5.25 in
5.25 in
5.25 in
2
2
2
2
Integrated
Integrated
Integrated
Integrated
20.8 HP
20.8 HP
20.8 HP
20.8 HP
9.3:1
9.3:1
9.3:1
9.3:1
No
No
No
No
2 qt
2 qt
2 qt
2 qt
Yes
Yes
No
Yes
Counter Clockwise
Counter Clockwise
Counter Clockwise
Counter Clockwise
Mechanical
Mechanical
Mechanical
Mechanical
Electonic, Digital CDI W/variable Ignition Timing
Electonic, Digital CDI W/variable Ignition Timing
Electonic, Digital CDI W/variable Ignition Timing
Electonic, Digital CDI W/variable Ignition Timing
2-barrel, Fuel Cut Solenoid, Inner Vent
2-barrel, Fuel Cut Solenoid, Inner Vent
2-barrel, Fuel Cut Solenoid, Inner Vent
2-barrel, Fuel Cut Solenoid, Inner Vent
Full Pressure
Full Pressure
Full Pressure
Full Pressure
Air
Air
Air
Air
3.1 in
3.1 in
3.1 in
3.1 in
2.8 in
2.8 in
2.8 in
2.8 in
Dual Element
Dual Element
Dual Element
Dual Element
Remote
Remote
Manual
Remote
Remote
Remote
Manual
Remote
17
20
17
3
No
No
No
No
See All Horizontal Engines
See All Honda Engines Horizontal Engines
Recently Viewed Items
This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.











