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HONDA GX390QA2 Horizontal Gasoline Engine - Honda Engines
HONDAHonda Engines

HONDA GX390QA2 Horizontal Gasoline Engine

The HONDA Gasoline Engine, Series GX390 Series (SKU GX390QA2, MPN GX390QA2), is a horizontal-shaft engine delivering 19.5 lb-ft gross torque and 11.7 hp. It features a recoil start type, a 1-inch keyed shaft…

SKU 3G-OTH-381181

Brand
HONDA
Item
GX390QA2 Horizontal Gasoline Engine
Part Number
GX390QA2
Category
Honda Engines
Available to Order
Also known as:GX390QA2HONDA
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Compliance & shipping

Hazardous material
Yes — hazmat handling and paperwork applyHazardous Material
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Required — additional freight charges may applyThis item requires special shipping, additional charges may apply.

Technical Specifications

HONDA
Manufacturer Part Number
GX390QA2
Type
19.5 lb-ft Gross Torque, Horizontal
Design
Overhead Valve
UNSPSC
26101503
Muffler
Yes
Bearings
Ball
Features
Cast Iron Cylinder Sleeve; Oil Alert
Gear Box
No
Rotation
Counterclockwise
Shaft Key
1-11/16 in
Standards
SAE J1349
Air Filter
Yes
Horsepower
11.7 hp
Net Torque
19.5 @ 2500 RPM
Start Type
Recoil
Catalog Page
948
Engine Cycle
4-Cycle
Gross Torque
19.5 lb-ft
Shaft Height
5-1/4 in
Shaft Length
3-1/2 in
Engine Series
GX390 Series
Ignition Type
Digital CDI
Maximum Speed
3,600 RPM
Overall Depth
16 in
Overall Width
19-1/8 in
PTO Shaft Key
1-11/16 in
CARB Compliant
CARB Non-Compliant
Overall Height
17-11/16 in
Shaft Diameter
1 in
Recommended Use
Agricultural Equipment; Commercial Lawn and Garden Equipment; Construction/Industrial Equipment; Generators; Pressure Washers; Small Vehicles; Tillers/Cultivators; Water Pumps
Air Cleaner Type
Dual Element
PTO Shaft Height
5-1/4 in
PTO Shaft Length
3-1/2 in
Country of Origin
Thailand (subject to change)
Low Oil Shut Down
Yes
Shaft Orientation
Horizontal
Fuel Tank Capacity
6.4 qt
PTO Shaft Diameter
1 in
Engine Displacement
389 cc
Number of Cylinders
1
Shaft Configuration
Key
Overall H Facing PTO
17-11/16 in
Overall W Facing PTO
19-1/8 in
Maintenance Frequency
Annually
Overall Depth Facing PTO
16 in
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HONDA Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HONDA Gasoline Engine, Series GX390 Series (SKU GX390QA2, MPN GX390QA2), is a horizontal-shaft engine delivering 19.5 lb-ft gross torque and 11.7 hp. It features a recoil start type, a 1-inch keyed shaft diameter, and includes a muffler.

Frequently Asked Questions

What is the Honda GX390QA2 gasoline engine used for?

The Honda GX390QA2 is a horizontal-shaft engine designed for industrial equipment such as pressure washers, generators, and construction machinery. Its 11.7 hp output and 19.5 lb-ft gross torque provide reliable power for demanding applications across multiple industries.

What are the specifications of the Honda GX390QA2 engine?

The Honda GX390QA2 delivers 11.7 hp and 19.5 lb-ft gross torque. It has a recoil start, a 1 in keyed shaft diameter, and includes a muffler. This horizontal-shaft engine is part of the GX390 Series, known for durability in industrial use.

Where to buy the Honda GX390QA2 engine worldwide?

3G Electric supplies the Honda GX390QA2 engine to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this engine to your facility. Contact us for availability and lead time.

How to install the Honda GX390QA2 engine?

Install the Honda GX390QA2 by aligning the 1 in keyed shaft with your equipment's coupling. Secure the engine using the mounting base, connect the fuel line, and fill with recommended oil. Always follow Honda's manual for torque specs and break-in procedures.

Used in

Common applications for HONDA
Construction — Honda GX340 engine powers concrete mixers and plate compactors.
Landscaping — Honda GXV160 engine drives commercial walk-behind lawn mowers.
Agriculture — Honda GX630 engine operates irrigation pumps and generators.
Industrial maintenance — Honda GX200 engine used in pressure washers and air compressors.
Turf care — Replacement blade for Honda HRC216 mower maintains cutting performance.
Automotive repair — Push-in rivet assortments for trim and panel fastening on vehicles.
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HONDA Products

3G Electric supplies HONDA honda engines. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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