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Husqvarna SG13 12 Inch 11.7hp Honda Stump Grinder
- $1,639.00
- Brands Husqvarna
- Product Code: 970 44 54-01
- Availability: In Stock
Husqvarna SG13 Stump Grinder 12 in. 11.7 HP Honda GX390 Product Overview The Husqvarna SG13 Stump Grinder is a professional walk-behind stump removal machine built for efficiently grinding unwanted tree stumps below ground level. Powered by a Honda GX390 engine, the SG13 combines substantial engine output with a tungsten-carbide-tipped cutting wheel and adjustable handle to provide controlled cu..
Top Features of the Husqvarna SG13 12 Inch Stump Grinder
Husqvarna SG13 Stump Grinder 12 in. 11.7 HP Honda GX390
Product Overview
The Husqvarna SG13 Stump Grinder is a professional walk-behind stump removal machine built for efficiently grinding unwanted tree stumps below ground level. Powered by a Honda GX390 engine, the SG13 combines substantial engine output with a tungsten-carbide-tipped cutting wheel and adjustable handle to provide controlled cutting performance in demanding landscaping and tree-care applications.
Its 12-inch maximum cutting depth, 12-inch pneumatic tires, and compact 27-inch width make the SG13 suitable for accessing stumps in relatively confined areas. The welded steel frame is designed for durability, while the centrifugal clutch and belt-drive system transfer engine power to the cutter wheel. Husqvarna's product documentation lists the SG13 with 11.7 HP net power and a Honda GX390 engine.
Key Features
- Honda GX390 engine – Provides the power needed for demanding stump-grinding applications.
- 11.7 HP net power rating – Husqvarna's product literature lists 11.7 HP for the SG13; the engine manufacturer's gross rating may differ.
- 12-inch maximum cutting depth – Allows the cutter wheel to grind stumps substantially below the surrounding ground level.
- Tungsten carbide-tipped cutter teeth – Designed for cutting through wood efficiently while providing long service life.
- 14-inch cutter wheel – The documented SG13A technical specification identifies a 14-inch-diameter, 3/8-inch-thick cutting disc.
- 12-inch pneumatic tires – Knobby tread provides traction and helps the machine roll over uneven terrain.
- Centrifugal clutch – Engages the cutter system as engine speed increases and helps isolate the cutting wheel when the machine is idling.
- Adjustable handle – Can be positioned to improve operator control and accommodate different cutting depths.
- Welded steel construction – Heavy-duty frame construction is designed for demanding professional use.
- Powder-coated finish – Helps protect the steel structure during outdoor use.
- Compact 27-inch width – Helps the grinder reach stumps in areas where larger equipment may have difficulty.
- Direct drive – Transfers power through the belt and clutch system to the cutter assembly.
- Operator-controlled disc brake – The documented SG13A specification uses a lever-activated disc brake.
Powerful Honda GX390 Engine
At the heart of the SG13 is a Honda GX390 four-stroke engine. Husqvarna's SG13 product literature specifies 11.7 HP net power, while technical documentation for the related SG13A configuration identifies the GX390 at 389cc and 13 HP gross power at 3,600 RPM. These ratings should not be treated as interchangeable because engine manufacturers' gross and net power measurements use different rating methods.
The GX390 provides the torque and engine capacity needed to keep the cutter wheel working through substantial wood material.
Tungsten Carbide Cutting System
The SG13 is equipped with a tungsten-carbide-tipped cutting wheel designed specifically for stump removal. Husqvarna's product catalog describes the wheel as a 14-inch cutter wheel, while the technical manual specifies a 14-inch-diameter, 3/8-inch-thick disc with tungsten carbide-tipped cutters.
The cutter can work to a maximum depth of approximately 12 inches below ground level. With the adjustable handle, the operator can position the cutting wheel progressively through the stump rather than attempting to remove the entire stump in one pass.
Adjustable Handle and Operator Control
The SG13 features an adjustable handle that allows the operator to position the machine for comfortable control at different cutting depths. Husqvarna specifies a maximum cutting depth of 12 inches with the adjustable handle.
This design is useful when grinding larger stumps because the operator can make controlled side-to-side movements while progressively lowering the cutter into the remaining wood.
Durable Construction for Professional Use
The SG13 is designed as a professional specialty machine rather than a light-duty homeowner tool. Husqvarna's product literature specifies welded 7-gauge steel construction and a powder-coated frame.
The combination of a heavy steel chassis, pneumatic tires, centrifugal clutch, belt drive, and carbide cutting system gives the SG13 the equipment characteristics expected for regular stump-removal work.
Product Specifications
| Specification | Details |
|---|---|
| Brand | Husqvarna |
| Model | SG13 |
| Product Type | Walk-Behind Stump Grinder |
| Application | Stump Grinding / Tree Care |
| Engine Brand | Honda |
| Engine Model | GX390 |
| Engine Displacement | 389cc |
| Engine Displacement | 23.7 cu. in. |
| Net Power | 11.7 HP |
| Gross Engine Power | 13 HP at 3,600 RPM, documented GX390 specification |
| Engine Torque | 19.5 ft-lb gross torque in Husqvarna product literature |
| Fuel Tank Capacity | Approximately 1.72 gal. / 6.5 L |
| Cutting Depth | Up to 12 in. |
| Cutter Wheel Diameter | 14 in. |
| Cutter Wheel Thickness | 3/8 in. |
| Cutter Teeth | Tungsten carbide-tipped |
| Clutch | Centrifugal |
| Drive | Direct |
| Belt | Gates HiPower double V-belt BP54 |
| Wheels | 12 in. pneumatic, knobby tread |
| Brake | Lever-activated disc brake |
| Construction | Welded 7-gauge steel |
| Handle | Adjustable |
| Working Width | Approximately 27 in. |
| Weight | Approximately 252 lb. less fuel |
| Product Dimensions | Approximately 73 x 27 x 45 in. |
| Finish | Powder-coated |
Husqvarna's catalog lists the SG13 at 11.7 HP, 12-inch maximum cutting depth, 12-inch pneumatic tires, 252 lb. weight, and 73 x 27 x 45-inch product dimensions.
Specification Note on Weight and Dimensions
Older Husqvarna technical documentation for the SG13A lists slightly different figures, including 249 lb. weight, a length of 62–73 inches depending on handle position, and a height of 24–43 inches depending on handle position.
For a product listing specifically identified as SG13 with 11.7 HP Honda GX390, the 252-lb. and 73 x 27 x 45-inch figures are the better match to Husqvarna's SG13 product catalog.
Why Choose the Husqvarna SG13?
The Husqvarna SG13 is suited to professionals and serious property-maintenance users who need a powerful, maneuverable stump grinder for removing tree stumps below grade. Its Honda GX390 engine supplies substantial power, while the carbide-tipped cutter wheel and 12-inch cutting depth provide the capability needed for demanding stump-removal work.
Its relatively narrow 27-inch profile, adjustable handle, pneumatic tires, and durable welded-steel construction also make it practical for accessing and working around stumps where larger grinding equipment may not fit.
Ideal For
- Professional tree-care contractors
- Landscaping companies
- Property maintenance crews
- Municipal and grounds-maintenance work
- Removing tree stumps below grade
- Grinding stumps in confined residential or commercial areas
Important: Husqvarna produced different SG13/SG13A configurations and documentation can show different power, weight, and dimensional ratings. For purchasing, replacement parts, or technical specifications, verify the machine's exact model number, SKU, and serial-number range before treating any specification as definitive.