The engine shaft is not tapered. The engine will have a straight shaft with a tapped end.
Honda Engines, HONDA V-TWIN HORIZ 630CC HXQZB3 Engine Displacement 688 cc, Engine Type GX Series OHV V-twin Commercial-duty, Shaft Diameter 1 in, Model# GX630RHXQZB3

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
- 900 configuration reduces vibration and allows a compact footprint
- Forged steel crankshaft and integrated cylinder head
- Fewer parts for better durability
- Digital CDI ignition coil ensures improved fuel economy and lowered emissions
- Improved air cleaning for filter change intervals that are five times longer
See full description
Description
Key Specs
Reviews
Q & A
Accessories
Warranty
Compare
Product Summary
What's Included
- (1) Engine, Model# GX630RHQZB3
Features + Benefits
- 900 configuration reduces vibration and allows a compact footprint
- Forged steel crankshaft and integrated cylinder head
- Fewer parts for better durability
- Digital CDI ignition coil ensures improved fuel economy and lowered emissions
- Improved air cleaning for filter change intervals that are five times longer
- Oil filter is parallel to crankshaft
- Not for sale in CA
Key Specs
| Attribute | Specification |
|---|---|
item# | 43824 |
Brand | Honda Engines |
Manufacturer's Warranty | 3 year limited warranty |
Ship Weight | 125.0 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 | Cast Iron |
Net Power Output | 20.8 HP |
Compression Ratio | 9.3:1 |
Fuel Tank | No |
Oil Capacity | 2.1 qt |
| Attribute | Specification |
|---|---|
Low Oil Shutdown | Oil Alert |
Low Oil Alert | Yes |
Shaft Rotation (From PTO Shaft Side) | Counter Clockwise |
Governor System | Mechanical |
Ignition System | Electrical, Digital CDI W/variable Ignition Timing |
Carburetor | 2 Barrel, Fuel-cut Solenoid, Inner Vent |
Lubrication System | Forced Lubrication |
Bearing Type | Ball |
Auto Compression Release | Yes |
Cooling System | Air |
Bore | 3.1 in |
Stroke | 2.8 in |
Air Cleaner Type | Dual Element |
Choke Control | Manual |
Throttle Control | Manual |
Fuel Filter | Yes |
Charging System Amps | 17 |
Muffler Included | No |
Reviews
Questions & Answers
Questions
-
· a year ago
is the output shaft tapered
1 answer-
ProductExpert11· a year ago
Helpful?
-
-
· 5 years ago
What is the difference between item 601105 and item 601099
1 answer-
ProductExpert31· 5 years ago
Both mufflers attach the same way. The exhaust output is on opposite sides. Item #601105 has an exhaust output on the left/starter side of the engine. Item #601099 has an exhaust output on the right/oil filter side of the engine.
Helpful?
-
-
· 6 years ago
Can you get solidworks files for this engine. Like a model
1 answer-
ProductExpert6· 6 years ago
Northern Tool would not have a Solidworks File for this engine.
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
$2089.99Shipping:
Factory shippedStore Pickup:
Not available - online only
- $1219.99
Shipping:
Factory shippedStore Pickup:
Not available - online only
- $2249.99
Shipping:
Factory shippedStore Pickup:
Not available - online only
- $969.99
Shipping:
Factory shippedStore Pickup:
Not available - online only
Specifications
688 cc
270 cc
688 cc
270 cc
GX Series OHV V-twin Commercial-duty
GX Series OHV Commercial-duty
GX Series OHV V-twin Commercial-duty
GX Series OHV Commercial-duty
1 in
1 in
1 in
1 in
2.9 in
3.23 in
2.9 in
3.23 in
Electric
Electric and Recoil
Electric
Recoil
0.25 in
0.25 in
0.25 in
-
35.6 ft-lbs.
14.1 ft-lbs.
35.6 ft-lbs.
14.1 ft-lbs.
Q-type
H-type
Q-type
H-type
5.25 in
5.25 in
5.25 in
5.25 in
2
1
2
1
Cast Iron
Cast Iron
Integrated
Cast Iron
20.8 HP
8.5 HP
20.8 HP
8.5 HP
9.3:1
8.5:1
9.3:1
8.5:1
No
-
No
-
2.1 qt
1.16 qt
2 qt
1.16 qt
Oil Alert
-
-
-
Yes
-
Yes
-
Counter Clockwise
Counter Clockwise
Counter Clockwise
Counter Clockwise
Mechanical
Centrifugal Mechanical
Mechanical
Centrifugal Mechanical
Electrical, Digital CDI W/variable Ignition Timing
Electronic
Electonic, Digital CDI W/variable Ignition Timing
Electronic
2 Barrel, Fuel-cut Solenoid, Inner Vent
Float, External Vent
2-barrel, Fuel Cut Solenoid, Inner Vent
Float, External Vent
Forced Lubrication
Splash
Full Pressure
Splash
Ball
-
-
-
Yes
-
-
-
Air
Air
Air
Air
3.1 in
3 in
3.1 in
3 in
2.8 in
2.3 in
2.8 in
2.3 in
Dual Element
Dual Element
Dual Element
Dual Element
Manual
Manual
Remote
Manual
Manual
Remote
Remote
Manual
Yes
Yes
-
Yes
17
-
3
-
No
-
No
-
-
5.6 qt
-
5.6 qt
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.







