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HONDA GX630RH-QZB3 Engine, 20.8 hp, Electric Start, 1 in Keyed Shaft - Honda Engines
HONDAHonda Engines

HONDA GX630RH-QZB3 Engine, 20.8 hp, Electric Start, 1 in Keyed Shaft

The HONDA GX630 Series engine (MPN GX630RH-QZB3) is a 20.8 hp gasoline engine with 35.6 lb-ft gross torque, featuring an electric start and a 1-inch keyed shaft. This engine is supplied without a muffler.

SKU 3G-OTH-381183

Also listed as: GX630RHQZB3 · GX630RH QZB3

Brand
HONDA
Item
GX630RH-QZB3 Engine, 20.8 hp, Electric Start, 1 in Keyed Shaft
Category
Honda Engines
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

HONDA
Manufacturer Part Number
GX630RH-QZB3
Type
35.6 lb-ft Gross Torque, Key
Muffler
No
Horsepower
20.8 hp
Start Type
Electric
Shaft Diameter
1 in
Shaft Configuration
Key

Technical Documents

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HONDA Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HONDA GX630 Series engine (MPN GX630RH-QZB3) is a 20.8 hp gasoline engine with 35.6 lb-ft gross torque, featuring an electric start and a 1-inch keyed shaft. This engine is supplied without a muffler.

Frequently Asked Questions

What is the HONDA GX630RH-QZB3 engine used for?

The HONDA GX630RH-QZB3 is a 20.8 hp gasoline engine with 35.6 lb-ft gross torque, designed for industrial equipment such as generators, pumps, and construction machinery. Its electric start and 1-inch keyed shaft enable reliable power in demanding applications.

What are the specifications of the HONDA GX630RH-QZB3 engine?

The HONDA GX630RH-QZB3 delivers 20.8 hp and 35.6 lb-ft gross torque. It features an electric start, a 1-inch keyed shaft, and is supplied without a muffler. The manufacturer part number is GX630RH-QZB3, part of the GX630 Series.

Where to buy the HONDA GX630RH-QZB3 engine worldwide?

3G Electric supplies the HONDA GX630RH-QZB3 engine to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct 20.8 hp engine with electric start and 1-inch keyed shaft for your industrial application.

How to install the HONDA GX630RH-QZB3 engine?

Install the HONDA GX630RH-QZB3 by mounting it securely on a flat surface, aligning the 1-inch keyed shaft with your equipment's coupling. Connect the electric start system to a 12 V battery per Honda's manual. Ensure proper ventilation as this engine is supplied without a muffler.

Used in

Common applications for HONDA
Construction site power — Honda EM5000XAN2 conventional generator for 120/240V AC tools and lighting
Industrial pump dewatering — Honda WT30XK4A trash pump for removing debris-laden water from excavation sites
Equipment power source — Honda GX340 engine for powering compressors, welders, or hydraulic units
Backup power for facilities — Honda EG4000LAN2 generator for emergency lighting and critical loads
Remote job site power — Honda EU2200TAN4 inverter generator for sensitive electronics and small tools
Engine replacement — Honda GX270 engine for repowering industrial machinery with 8.4 hp output

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
The HONDA GX35NT-ST3 is a 1 hp gasoline engine from the GX35 Series, delivering 1.2 lb-ft gross torque. It features a recoil start, keyed shaft configuration, and includes a muffler. This engine is suitable for powering pressure washers, generators, and other outdoor power equipment requiring a compact, portable power source
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The HONDA GX35NT-ST3 is a 1 hp gasoline engine from the GX35 Series, delivering 1.2 lb-ft gross torque. It features a recoil start, keyed shaft configuration, and includes a muffler. This engine is suitable for powering pressure washers, generators, and other outdoor power equipment requiring a compact, portable power source
General-purpose industrial engine delivering 11 hp and 19.5 lb-ft gross torque. Features a 1 in keyed shaft, muffler, and both recoil and electric start. Suitable for powering construction equipment, pressure washers, generators, and agricultural machinery
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General-purpose industrial engine delivering 11 hp and 19.5 lb-ft gross torque. Features a 1 in keyed shaft, muffler, and both recoil and electric start. Suitable for powering construction equipment, pressure washers, generators, and agricultural machinery
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Horizontal-shaft gasoline engine delivering 3.2 hp and 5.5 lb-ft gross torque. Features recoil start, a 3/4 in keyed shaft, and includes a muffler. Suitable for powering light-duty industrial equipment such as pressure washers, generators, and pumps
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Honda GXV160 series engine delivering 7.1 lb-ft gross torque and 4.3 hp. Features recoil start, muffler, and keyed shaft configuration with 1 in sloped to 7/8 in shaft diameter. Suitable for powering commercial lawn mowers, pressure washers, and other outdoor power equipment
The HONDA GX100RT-KRG is a small industrial engine from the GX100 Series, delivering 2.8 hp (4.2 lb-ft gross torque). It features a manual choke, remote throttle, recoil start, and a muffler. The 16.8 mm keyed shaft is designed for powering equipment such as pressure washers, generators, and pumps
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The HONDA GX100RT-KRG is a small industrial engine from the GX100 Series, delivering 2.8 hp (4.2 lb-ft gross torque). It features a manual choke, remote throttle, recoil start, and a muffler. The 16.8 mm keyed shaft is designed for powering equipment such as pressure washers, generators, and pumps
Horizontal-shaft gasoline engine delivering 10.7 hp and 19.5 lb-ft gross torque. Features electric start, a 1-inch keyed shaft, and includes a muffler. Suitable for powering industrial and commercial equipment such as generators, pressure washers, pumps, and construction machinery
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Horizontal-shaft gasoline engine delivering 10.7 hp and 19.5 lb-ft gross torque. Features electric start, a 1-inch keyed shaft, and includes a muffler. Suitable for powering industrial and commercial equipment such as generators, pressure washers, pumps, and construction machinery

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This Honda GX160 Series gasoline engine delivers 4.8 hp and 7.6 lb-ft gross torque in a horizontal configuration. It features electric start, a 3/4 in keyed shaft, and includes a muffler. Commonly used in pressure washers, generators, pumps, and construction machinery
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This Honda GX160 Series gasoline engine delivers 4.8 hp and 7.6 lb-ft gross torque in a horizontal configuration. It features electric start, a 3/4 in keyed shaft, and includes a muffler. Commonly used in pressure washers, generators, pumps, and construction machinery
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Horizontal-shaft gasoline engine delivering 11.7 hp and 19.5 lb-ft gross torque. Features recoil start, 1 in keyed shaft diameter, and includes a muffler. Suitable for powering industrial equipment such as pressure washers, generators, and construction machinery
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The HONDA GX35NT-S3 is a horizontal gasoline engine delivering 1 hp and 1.2 lb-ft gross torque. It features a recoil start, keyed shaft configuration, and includes a muffler. This engine is suited for light-duty equipment such as pressure washers, generators, and small pumps
Horizontal-shaft gasoline engine delivering 11.7 hp and 19.5 lb-ft gross torque. Features electric start, a 1-inch keyed shaft, and includes a muffler. Suitable for powering industrial equipment such as pressure washers, generators, pumps, and construction machinery
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Horizontal-shaft gasoline engine delivering 11.7 hp and 19.5 lb-ft gross torque. Features electric start, a 1-inch keyed shaft, and includes a muffler. Suitable for powering industrial equipment such as pressure washers, generators, pumps, and construction machinery
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Vertical-shaft gas engine delivering 17.8 lb-ft gross torque. Features a 1 in diameter keyed shaft, recoil start, and includes a muffler. Suitable for powering pumps, generators, and other industrial equipment
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Horizontal-shaft gasoline engine delivering 11.7 hp and 19.5 lb-ft gross torque. Features electric start, a 1 in keyed shaft, and includes a muffler. Suitable for powering pressure washers, generators, pumps, and construction equipment
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Horizontal-shaft gasoline engine delivering 11.7 hp and 19.5 lb-ft gross torque. Features electric start, a 1 in keyed shaft, and includes a muffler. Suitable for powering pressure washers, generators, pumps, and construction equipment
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Horizontal-shaft gasoline engine delivering 11.7 hp and 19.5 lb-ft gross torque. Features recoil start, 1-inch keyed shaft, and includes muffler. Suitable for powering pressure washers, generators, pumps, and construction machinery