The Honda GX340UT2XQA2 engine is manufactured by Honda in facilities in Japan and the United States depending on production batch, and it does have a 1-inch straight keyed shaft with a 1/4-inch keyway slot.
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Honda 389cc GX Series OHV Commercial-Grade Engine, 1in. Shaft, Model# GX340UT2XQA2

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- Model# GX340UT2XQA2; Honda 389 OHV air-cooled, 4-stroke, horizontal engine
- Precision camshaft design for precise valve timing, optimal valve overlap and better fuel economy
- OHV design for increased efficiency and optimal power transfer
- High-compression ratio for better fuel efficiency
- Low vibration from precision-engineered components
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Description
Key Specs
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Product Summary
What's Included
- (1) Engine, Model# GX340UT2XQA2
Features + Benefits

- Model# GX340UT2XQA2; Honda 389 OHV air-cooled, 4-stroke, horizontal engine
- Precision camshaft design for precise valve timing, optimal valve overlap and better fuel economy
- OHV design for increased efficiency and optimal power transfer
- High-compression ratio for better fuel efficiency
- Low vibration from precision-engineered components
- Ball bearing-supported crankshaft for greater stability
- Large capacity, multi-chamber exhaust system for a low noise level
- Sophisticated air intake system
- Oil Alert for extra engine protection
- Carburetor filter and chamber coating help protect against fuel impurities
- Cast iron cylinder sleeve
- Dual element air filter
- Simple throttle control
- Double walled heavy-duty 6.4-qt. tank with in-tank fuel strainer
- Large automotive-style fuel cap for easy filling
- Dual oil fills and drains for quick oil changes
- Easily accessible spark plug
- Ergonomic recoil design for easy starts
- Automatic decompression for easy starting
- Not for sale in CA
Key Specs
| Attribute | Specification |
|---|---|
item# | 6065 |
Brand | Honda Engines |
Manufacturer's Warranty | 3 year limited warranty |
Ship Weight | 79.2 LB |
Engine Displacement | 389 cc |
Engine Type | GX Series OHV Commercial-duty |
Shaft Diameter | 1 in |
Shaft Length | 3.48 in |
Start Type | Recoil |
Shaft Keyway | 0.25 in |
Net Torque | 19.5 ft-lbs. |
Crankshaft | Q-type |
PTO Height | 5.25 in |
Cylinders (qty.) | 1 |
Cylinder Bore | Cast Iron |
Net Power Output | 10.7 HP |
Compression Ratio | 8.2:1 |
Fuel Tank | Yes |
| Attribute | Specification |
|---|---|
Fuel Tank Capacity | 6.4 qt |
Oil Capacity | 1.16 qt |
Low Oil Shutdown | Yes |
Low Oil Alert | Yes |
Shaft Rotation (From PTO Shaft Side) | Counter Clockwise |
Governor System | Centrifugal Mechanical |
Ignition System | Electronic |
Carburetor | Float, External Vent |
Lubrication System | Splash |
Auto Compression Release | Yes |
Cooling System | Air |
Bore | 3.2 in |
Stroke | 2.5 in |
Air Cleaner Type | Dual Element |
Choke Control | Manual |
Throttle Control | Manual |
Fuel Filter | Yes |
Muffler Included | Yes |
Reviews
Questions & Answers
Questions
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· a month ago
2 questions What country is it manufactured in? Does it have 1 inch shaft with Keyway slot?
1 answer-
ProductExpert10· a month ago
Helpful?
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· 5 years ago
can you install an electric start on this motor?
1 answer-
ProductExpert10· 5 years ago
The engine would not allow electric start to be added.
Helpful?
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· 6 years ago
How much horsepower ?
1 answer-
ProductExpert31· 6 years ago
This engine is rated at 10.7 HP at 3,600 RPM.
Helpful?
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· 15 years ago
what mounting would be used to drive a hydraulic pump?
1 answer-
ProductExpert6· 3 years ago
Mounting Bracket #3032 will mount to this engine. You will need a coupling for the engine shaft, item # 3007, and an insert, item # 3009, and also a coupling for the Hydraulic Pump shaft.
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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.
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Specifications
389 cc
118 cc
118 cc
389 cc
GX Series OHV Commercial-duty
GX Series OHV Commercial-duty
GX Series OHV Commercial-duty
GX Series OHV Commercial-duty
1 in
3/4 in
3/4 in
1 in
3.48 in
2.43 in
2.09 in
3.48 in
Recoil
Recoil
Recoil
Recoil
0.25 in
0.18 in
0.25 in
0.25 in
19.5 ft-lbs.
5.4 ft-lbs.
5.4 ft-lbs.
19.5 ft-lbs.
Q-type
Q-type
H-type
Q-type
5.25 in
4.17 in
4.17 in
5.25 in
1
1
1
1
Cast Iron
Cast Iron
Cast Iron
Cast Iron
10.7 HP
3.5 HP
3.5 HP
11.7 HP
8.2:1
8.5:1
8.5:1
8.2:1
Yes
-
-
Yes
6.4 qt
2.1 qt
2.1 qt
6.4 qt
1.16 qt
0.59 qt
0.59 qt
1.16 qt
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Counter Clockwise
Counter Clockwise
Counter Clockwise
Counter Clockwise
Centrifugal Mechanical
Centrifugal Mechanical
Centrifugal Mechanical
Centrifugal Mechanical
Electronic
Electronic
Electronic
Electronic
Float, External Vent
Float
Float
Float, External Vent
Splash
Splash
Splash
Splash
Yes
Yes
Yes
Yes
Air
Air
Air
Air
3.2 in
2.4 in
2.4 in
3.5 in
2.5 in
1.7 in
1.7 in
2.5 in
Dual Element
Dual Element
Dual Element
Dual Element
Manual
Manual
Manual
Manual
Manual
Remote
Remote
Remote
Yes
-
-
Yes
Yes
Yes
Yes
Yes
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