tree stump

Best Stump Grinder on the Market in 2020

OutdoorChief.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate this site earns from qualifying purchases.

When buying a stump grinder, you should ensure that the machine you buy is strong, reliable and has enough power under the hood to make short work of those stumps.

Potentially, labor-intensive work of this nature is a lot easier if you have the correct tool. However, there are a number of stump grinders on the market, with varying price-points and features.

In fact, knowing which model to spend your money on can be a difficult choice. That’s where we aim to help.

In this review roundup, we have selected 5 top-rated stump grinders. Our choices are supported by verified customer reviews in tandem with intensive product research and analysis.

These are the results…

Best Stump Grinder

NAME
IMAGE
DETAILS
TOP PICK:
DK2 Power OPG777
Stump Grinder
3600RPM Cutting
14 HP Gas Engine
ATV Tires
Western Pacific
SMS-15HPSG
Stump Grinder
3600RPM Cutting
15 HP Gas Engine
ATV Tires
Bluebird SG1314B
Stump Grinder
13HP Gas Engine
Cut Range 24"
ATV Tires
PowerKing PK0803
Stump Grinder
14HP Gas Engine
3 yr Warranty
ATV Tires
Generac
ST47019GENG
Pro Stump
Grinder
390cc Gas Engine
Dual Belt Drive
15" ATV wheels

Stump Grinder Reviews

1. TOP PICK: DK2 Power OPG777 Stump Grinder

This is a well-designed, compact and durable high-performance walk-behind handlebar stump grinder that features a heavy-duty commercial frame, heavy-duty steel undercarriage, 2 lockable wheels fitted with ATV (all-terrain vehicle) tires, and toothed 12-inch cutter wheel that rotates at 3600rpm.

This medium-duty SG can be towed by a vehicle via its 2-inch tow bar, or one can secure it on the truck bed and transport it.

Its cutter wheel has 9 carbide teeth that have been bolted to a rotor disc (to form the cutting disc). An extra set of carbide teeth is also provided.

The cutting depth for this SG model is 3.5-4 inches. This handlebar SG allows the operator to raise the cutter head to a height of 12 inches above ground level, and also push it up-to 9inches deep into the ground.

The entire SG is powered by a single-cylinder, 4-stroke Kohler Motor CH44O engine whose power output is 14HP. A dual belt drive system with 2 pulleys – an engine and a rotor pulley – allow for motion transmission.

It also features 3 leather chip curtains, 2 on the sides and one curtain underneath the wheel axle. During operation, its noise level is about 72 decibels (as heard by the human ear, or 72dBA).

This equipment is designed and made by Detail K2, Inc. It belongs to the DK2 Power series of outdoor equipment, and its model number is OPG777.

This is not a tow-behind SG model as it requires the operator to push the machine and use its adjustable bow handle when running the SG.

There are locking pins provided to lock one or both wheels. Relatedly, its chassis is mounted on a 2X2 axle. Its chassis features 2 pull-pin stands.

Also, a key switch is fitted on the right side of the bow handle.

This SG is shipped in a wooden crate. It comes in a semi-assembled state. The engine, cutter head, and motion transmission system are already fitted together on the tubular chassis.

The owner needs to fit the wheel assembly, handlebar assembly, and tow bar, among other hardware, to the chassis in order to have a fully-functional stump grinder. Likewise, the cutter wheel must be installed in the cutter head.

Opportunely, an easy-to-follow assembly guide is provided, alongside assembly hardware such as washers, lynchpins, bolts, nuts, wheel axle, long bolt, adjustment handle, handle tower, bow handle, ATV wheels, tow bar hitch, 2 tow bar stands, hitch pins, tow-bar screw lock.

Likewise, inside the crate are 3 spanners, safety glasses, oil fill bottles, work gloves, and ear (protection) muff.

The fully-assembled SG weighs 231 pounds and is 102inches long, 48inches wide, and 59inches tall.

The basic assembly operations are described hereafter. To begin with, the user must slide the wheels onto the axle, and secure them in place using lynchpins.

Then, install the wheel axle under the premium-grade, heavy-duty welded steel chassis and bolt it into place (using 2 bolts).

Next, mount the handle tower (which holds the handlebar frame and throttle assy) onto the chassis and bolt it securely (using 4 bolts).

The throttle assy then needs to be bolted (using 2 bolts) to the right beam of the handle tower. After that, the user connects the throttle to the engine using (the provided) 2 wire connectors.

Afterward, the bow handle can be installed into the handle tower and secured in place using a long bolt. The adjustment handle is used as the nut for this long bolt, which allows the operator to use this adjustment handle to raise or lower the bow handle.

The aforementioned 2 wire connectors are then mated to their corresponding connectors – whose wires terminate in the key switch – in the bow handle, and this allows for easy engine start-up.

The tow bar also needs to be fitted to the chassis. This tow bar is angled so as to provide for ground clearance when the SG is being towed. This chassis also features a lift handle on its top-side, just behind the cutter head guard.

As mentioned earlier, the cutter wheel has a diameter of 12inches. Its durable construction and tough carbide teeth allow it to chip hardwood stumps and their roots.

Each cutter tooth is bolted to the rotor disc using 2 bolts. The cutter teeth are arranged as follows on the rotor disc; 3 teeth are biased to the right, 3 teeth are biased to the left, and 3 teeth are centrally placed.

This biasing of teeth maximizes the width of the cut when the cutter wheel is pushed into the tree stump (with the centrally placed teeth initiating wood slicing while biased teeth enlarge the cut width). In fact, the cut is 3.5inches wide.

The cutter wheel can be lifted up-to 12inches above ground, which means that it can work well on a stump that is no more than 12 inches tall.

Likewise, the cutter wheel can be pushed up-to 9inches into the ground. Therefore, the maximum range of lift that its cutter head can achieve after it has been sunk into the ground is 21 inches.

This range of lift, or cutting range, is calculated by adding the 9inches to 12inches, and it indicates that this SG model can grind a stump whose height is 12 inches and whose root is 9 inches deep.

Even so, the operator can grind roots that are deeper than 9inches by removing loose soil and dirt from the ground, and creating a pan depression where the SG can be wheeled into and the cutter wheel can then be pushed deeper into the intact roots.

This SG model comes with a Kohler Command Pro CH440 single-cylinder gasoline/petrol engine. The engine displacement capacity is 429 cubic centimeters (cc), while its power output is 14HP and torque output is 9.74 newtons-meter (Nm).

This engine is fitted on its chassis compartment, and connected to the cutter wheel via a dual belt drive system.

This engine features a throttle, choke, pull starter, and an on/off switch that is connected to the key lock and key lock switch through electrical cables.

The key lock allows the operator to lock the engine. Likewise, the throttle assy provides easy access for throttle control of this engine.

Moreover, there is a fuel tank located atop the engine, and its holding capacity is 7 liters (7L or 1.85 gallons) of gasoline.

As anticipated, this engine must be started manually. Additionally, the oil recommended for use (in this engine) is 10W30.

Furthermore, the engine position can be adjusted by sliding it back and front of the chassis by loosening or tightening the 2 long engine mounting bolts that secure the engine in its chassis compartment.

Mobility for this SG model is provided by 2 lockable ATV wheels. The wheels are fitted on a heavy-duty 2-inches thick tubular square axle. Each tire has a diameter of 13.75inches and a width of 5.25inches.

These ATV tires allow the SG to be driven on muddy grounds.

This stump grinder model is supported by a 12-month limited warranty, and its engine has a 3-year warranty.

Pros of the DK2 Power OPG777 Stump Grinder
  • Durable and compact, high-performance walk-behind handlebar stump grinder.
  • Powered by a Kohler Command Pro CH440 single-cylinder gasoline engine with a displacement capacity of 429cc, and power and torque outputs of 14HP and 9.74 Nm respectively.
  • Features a dual belt drive.
  • 12-inch cutter wheel has 9 carbide cutters that can be replaced.
  • Comes with an extra set of carbide teeth.
  • Cut width of 3.5inches.
  • Supports direct drive power transmission which allows cutter wheel to spin at 3600rpm.
  • Can be towed by a truck, or carried on truck bed.
  • 2 lockable ATV wheels.
  • Cutter head can be raised to 12inches above ground level, and can be sunk 9inches into the ground.
  • Cutting range of cutter wheel is 21 inches.
  • Adjustable engine position.
  • Has 3 chip curtains.
  • Features heavy-duty, premium-grade steel frame and undercarriage.
  • Features a lift handle.
  • SG supported by a 12-month limited warranty, while engine has a 3-year warranty.
The Cons
  • Expensive.
  • Requires assembly.

Bottom-line

DK2 Power OPG777 is a compact, well-designed, and durable high-performance walk-behind handlebar stump grinder with ATV tow capability on 2 lockable ATV wheels and features a 12-inch cutter wheel that comes with 9 replaceable carbide cutters.

It is powered by a Kohler Command Pro CH440 single-cylinder gasoline engine with a displacement capacity of 429cc, and power and torque outputs of 14HP and 9.74 Nm. It uses a dual belt drive to run the cutter wheel at 3600rpm.

This cutter wheel has a cut width of 3.5inches, and it can be lifted 12 inches above the ground, as well as be sunk 9inches into the ground to chip away roots.

This model features a heavy-duty, premium-grade steel frame and undercarriage with 3 attached chip curtains.

Lastly, the high performance-to-cost ratio, superb build quality, durable construction, and ease of use makes this DK2 OPG777 SG the best stump grinder in this review.

2. Samson Machinery-Western Pacific SMS-15HPSG

This is a well-designed, compact and durable high-performance walk-behind handlebar stump grinder that features a drum braking system, recoil starting system (for engine), 2 ATV wheels, and toothed 12-inch cutter wheel that rotates at 3600rpm.

Its cutter wheel has 9 replaceable tungsten-carbide cutters. This SG model is manufactured by Samson Machinery, Inc., for Western Pacific Wholesale LLC.

It has similar construction and operational designs to DK2 Power OPG777, with a few notable differences. Its model number is SMS-15HPSG to indicate that it is a stump grinder (SG) that is powered by a 15HP engine, hence the 15HPSG suffix.

Unlike the DK2 OPG777, this SMS-15HPSG does not feature a tow bar, hence lacks an off-shelf tow capability. Still, SMS-15HPSG can be transported by securing it onto a truck bed.

Like DK2 Power OPG777, its 9 cutter teeth are bolted to the rotor disc, and its cutting depth is 3.5-4 inches.

Even so, SMS-15HPSG allows the operator to raise the cutter head to a height of 20.25inches above ground level, and also push it up-to 9inches deep into the ground.

SMS-15HPSG is powered by a single-cylinder, 4-stroke Ducar engine whose power output is 15HP. A twin V-belt drive system allows for motion transmission.

It also features chip curtains. As expected, its ATV wheels can be locked and its chassis is mounted on the wheel axle, and its key switch button is fitted in the bow-handle.

Also, just like DK2 Power OPG777, the rectangular bow handle of this SMS-15HPSG model is made from a tubular pipe that has been ergonomically designed to enhance user comfort and allow for easier control of the SG.

SMS-15HPSG is shipped in a semi-assembled state in a wooden crate that weighs about 300pounds. The owner needs to assemble it into a fully-functional stump grinder by following the instructions laid out in the accompanying easy-to-follow assembly guide.

Also, provided are the assembly hardware, assembly tools like 3 spanners, and other items including safety glasses, oil fill bottles, work gloves, and earmuff.

The color scheme of the fully-assembled SG is red. The fully-assembled SG weighs about 220 pounds and is 51inches long, 42inches wide, and 72inches tall.

SMS-15HPSG features premium-grade, heavy-duty welded steel chassis. It also features a handle tower, throttle assy, adjustment handle, and a lift handle just behind the cutter head guard.

The 12-inch cutter wheel of SMS-15HPSG is durably constructed and fitted with tough cutter teeth. Also, the arrangement of the 9 teeth and lateral biasing (just like in the OPG777 SG) gives this cutter wheel a cut width of 3.55inches.

As mentioned earlier, the cutter wheel can be lifted up-to 20.25inches above ground, which means that it can work well on stumps taller than 12 inches, unlike DK2 Power OPG777.

Even so, like the OPG777 SG, its cutter wheel can be pushed up-to 9inches into the ground. Nonetheless, SMS-15HPSG has a greater cutting range at 29.25inches as compared to DK2 Power OPG777.

SMS-15HPSG comes with a Ducar gasoline IC engine with a displacement capacity of 420cc and power output of 15HP, which makes this engine more fuel-efficient than the Kohler Command Pro CH440 in DK2 OPG777.

Nonetheless, just like in DK2 Power OPG777, the Ducar engine in SMS-15HPSG is fitted on its chassis compartment, and connected to the cutter wheel via a direct belt drive system.

This Ducar engine also features a throttle, choke, pull starter, and an on/off switch that is connected to the key lock and key lock switch through electrical cables; as well as has a fuel tank that is located atop the engine.

Mobility for SMS-15HPSG is provided by 2 ATV wheels. The wheels are fitted on a heavy-duty thick tubular axle. Each tire has a diameter of 13inches. As expected, these ATV tires allow the SG to be driven on muddy grounds.

SMS-15HPSG is supported by a 12-month limited warranty.

Pros of the Samson Machinery-Western Pacific SMS-15HPSG
  • Durable and compact, high-performance walk-behind handlebar stump grinder.
  • Powered by a Ducar single-cylinder gasoline engine with a displacement capacity of 420cc and power output of 15HP.
  • Features twin V-belt drive system.
  • 12-inch cutter wheel has 9 carbide cutters that can be replaced.
  • Cut width of 3.55inches.
  • Supports direct drive power transmission which allows cutter wheel to spin at 3600rpm.
  • Can be carried on truck bed.
  • 2 lockable ATV wheels.
  • Cutter head can be raised to 20.25inches above ground level, and can be sunk 9inches into the ground.
  • Cutting range of cutter wheel is 29.25 inches.
  • Has chip curtains.
  • Features heavy-duty, premium-grade steel frame.
  • Features a lift handle.
  • SG supported by a 12-month limited warranty.
The Cons
  • Lacks ATV tow capability.
  • Requires assembly.

Bottom-line

Samson Machinery-Western Pacific SMS-15HPSG is a well-designed, compact and durable high-performance walk-behind handlebar stump grinder that features drum braking system, recoil starting system, 2 ATV wheels, and toothed 12-inch cutter wheel that rotates at 3600rpm.

Its cutter wheel has 9 replaceable tungsten-carbide cutters. It features a twin V-belt drive system and is powered by a Ducar single-cylinder gasoline engine with a displacement capacity of 420cc and a power output of 15HP.

Its cutter wheel has a cut width of 3.55inches, and it can be lifted 20.25inches above ground, as well as be sunk 9inches into the ground to chip away the roots. Also, this SG features a heavy-duty, premium-grade steel frame and comes with chip curtains.

3. Bluebird SG1314B Stump Grinder

Bluebird Stump Grinder 14" GX390 Honda #SG1314B

This is a compact, durable, and well-designed high-performance walk-behind handlebar stump grinder that features an adjustable ergonomic handle that can be raised to 4 different positions, 2 knobby ATV wheels, and toothed 14-inch cutter wheel that has 3 cutting edges.

Its 8 carbide-tipped tungsten cutters – each with a pocket – are bolted to the rotor to form the cutter wheel, and the thickness of this wheel is 3/8-inch.

This SG features a double V-belt drive system that runs its cutting system, which utilizes the M1 cutting technology (that is usually used in heavy-duty stump grinders).

This cutting system also features a lever-activated, Hayes disk brake. Relatedly, this model is powered by a four-stroke Honda GX390 single-cylinder gasoline engine with a displacement capacity of 390cc and a power output of 13HP.

Like Samson Machinery-Western Pacific SMS-15HPSG, the engine of this Bluebird model is fuel efficient (as compared to DK2 Power OPG777). This SG is designed and made by Bluebird, and its part number is SG1314B (with 13 for its 13HP engine and 14 for its cutter wheel diameter).

Unlike the 2 SG models reviewed above, Bluebird SG allows the operator to push the cutter wheel 12inches deep into the ground, and this gives it a higher cut depth as compared to the afore-reviewed SGs.

Nonetheless, its cutting range is 24inches. This model also features chip curtains. Its frame is constructed from welded 7-gauge steel. Unlike DK2 Power OPG777, this Bluebird model lacks ATV tow capability and requires the user to transport it by securing it onto a truck bed.

Even so, it has a provision for locking the wheels, and its chassis is mounted in the wheel axle. Moreover, SG1314B comes with a debris deflector built into the cutter head, and this deflector ensures that the chips are thrown in front of the cutter wheel.

Bluebird SG1314B is shipped in a semi-assembled state in a wooden crate. As expected, the owner needs to assemble it into a fully-functional stump grinder by following the instructions laid out in the easy-to-follow assembly guide provided.

Also, provided are the assembly hardware, assembly tools, and safety gear like safety glasses, work gloves, and earmuffs. The color scheme of the fully-assembled SG is blue.

The fully-assembled SG weighs 350 pounds and is 62inches long, 45inches wide, and its height can be adjusted from 45inches to 72inches.

Bluebird SG1314B features premium-grade, heavy-duty steel chassis with 2 lift handles. It also features a handle tower, throttle assy, and an adjustable handle. Also, its cutter wheel has a durable construction.

This Bluebird model is powered by a fuel-efficient Honda GX390 single-cylinder gasoline/petrol engine. This engine has a high-quality Cyclone air filter that cuts down of fuel wastage by boosting combustion.

Also, its heavy-duty recoil starter allows for easy starting of the engine; while the NORAM centrifugal clutch ensures that steady engine power is delivered to the drive belt regardless of the cutter workload.

Mobility for this Bluebird model is provided by 2 lockable ATV wheels fitted on a heavy-duty axle. Each tire has a diameter of 12inches.

Bluebird SG1314B is supported by a 12-month limited warranty, and its Honda engine has a 3-year warranty.

Pros of the Bluebird SG1314B Stump Grinder
  • Durable and compact, high-performance walk-behind handlebar stump grinder.
  • Powered by a Honda GX390 single-cylinder gasoline engine with a displacement capacity of 390cc and power output of 13HP.
  • Features double V-belt drive system.
  • 14-inch cutter wheel that is 3/8-inch thick.
  • 8 carbide-tipped cutters are fitted to the cutter wheel.
  • Comes with a debris deflector.
  • Can be carried on truck bed.
  • 2 lockable ATV wheels.
  • Cutter head can be sunk 12 inches into the ground.
  • Cutting range is 24 inches.
  • Features heavy-duty, premium-grade steel frame.
  • Features 2 lift handles.
  • SG supported by a 12-month limited warranty.
The Cons
  • Lacks ATV tow capability.
  • Expensive.
  • Smaller ATV wheels compared to the ATV wheels in the 2 models reviewed above.
  • Requires assembly.

Bottom-line

Bluebird SG1314B is a well-designed, compact and durable high-performance walk-behind handlebar stump grinder that features an adjustable ergonomic handle that can be raised to 4 different positions, 2 knobby ATV wheels, and toothed 14-inch cutter wheel that has 3 cutting edges.

Its cutter wheel features 8 pocketed carbide-tipped tungsten cutters and is driven by a Honda GX390 engine via a double V-belt drive system.

It utilizes M1 cutting technology, and its cutting system features a lever-activated, Hayes disk brake. The cutter wheel can be pushed 12 inches into the ground.

Lastly, this model is powered by a four-stroke Honda GX390 single-cylinder gasoline engine with a displacement capacity of 390cc and power output of 13HP.

4. PowerKing PK0803 Stump Grinder

This is a durable, well-designed, and compact high-performance walk-behind handlebar SG with ATV tow capability on 2 ATV wheels.

It features a centrifugal clutch, emergency pull, dual V-belts drive system, emergency stop button, palm safety shut-off button, dual lift handles, ripcord safety shut-off, and a 12-inch cutter wheel that comes with 9 replaceable carbide cutters.

It also comes with safe-release front stands (footpegs) that prevent the carbide-tipped tungsten cutters from touching the ground during storage, or when starting the SG.

One can also fit an hour meter and electric starter in this SG. Moreover, it comes with an extra set of cutters, and the tow bar can be fitted easily when needed.

Also, only its left wheel can be braked. Like DK2 Power OPG777 SG, this model is powered by a Kohler Command Pro CH440 single-cylinder gasoline engine with a displacement capacity of 429cc, and power and torque outputs of 14HP and 9.74 Nm.

It uses a dual belt drive to run the cutter wheel at 3600rpm. This cutter wheel has a cut width of 3.5inches, and it can be lifted 12 inches above the ground, as well as be sunk 9inches into the ground to chip away roots.

It also features a debris deflector and 4 chip curtains. This SG is designed and made by PowerKing, and its part number is PK0803.

Its precision control brake allows for steady pivoting. Also, its adjustable ergonomic handle that can be raised to 4 different positions.

Its tow bar features a 1-7/8 inches hitch ball. This medium-duty SG shares many operations and construction design features with DK2 Power OPG777.

Even so, unlike DK2 Power OPG777 whose tow bar is in front of the cutter head, the tow bar in this PowerKing SG is behind the engine.

PowerKing PK0803 is shipped in a wooden crate that weighs about 451pounds. It comes in a semi-assembled state, with the engine, cutter head, and motion transfer system already fitted together on the tubular chassis.

The owner needs to fit the wheel assembly, handlebar assembly, and tow bar, among other hardware, to the chassis in order to have a fully-functional stump grinder.

Likewise, the cutter wheel must be installed in the cutter head. Opportunely, an easy-to-follow assembly guide is provided, alongside assembly hardware such as wheel axle, adjustment handle, handle tower, bow handle, ATV wheels, tow bar hitch, and hitch pins.

Likewise, inside the crate are 3 spanners, safety glasses, oil fill bottles, work gloves, and earmuffs. The color scheme of the fully-assembled SG is orange.

The fully-assembled SG weighs 286pounds and is 51inches long, 42inches wide, and 72inches tall.

Its 12-inch cutter wheel features durable construction and tough carbide-tipped teeth. Just like in DK2 Power OPG777, each cutter tooth in PowerKing PK0803 is bolted to the rotor disc using 2 bolts.

The cutter teeth are arranged as follows on the rotor disc; 3 teeth are biased to the right, 3 teeth are biased to the left, and 3 teeth are centrally placed. This gives the cutter wheel a cut width of 3.5inches.

Also, just like in DK2 Power OPG777, the engine in PowerKing PK0803 is a Kohler Command Pro CH440 single-cylinder gasoline/petrol engine.

This engine comes with a 4-stage Cyclonic air filter. Also, this engine is fitted on its chassis compartment, and connected to the cutter wheel via a dual belt drive system.

Likewise, the engine position can be adjusted by sliding it back and front on the chassis. Moreover, sliding the engine back or front helps adjust the tension in the 2 V-belts which impacts the integrity of motion transfer.

PowerKing PK0803 features premium-grade, heavy-duty welded steel chassis. It also features a handle tower, throttle assy, adjustment handle, brake lever, and 2 lift handles.

Unlike DK2 Power OPG777 whose handle tower is made of two vertical beams that are connected at the top by a horizontal beam, the handle tower of this PowerKing SG is a single frame.

Its 2 lift bars, each on the side of the handle tower frame, allows the operator to lift it up.

Also, the throttle assy and the adjustment handle in PowerKing PK0803 are located on the right side of the handle tower, while the brake lever is fitted on the left vertical beam of the handlebar frame.

Mobility for this SG model is provided by 2 ATV wheels. The wheels are fitted on a heavy-duty thick tubular axle.

This PowerKing PK0803 SG is supported by a 12-month limited warranty, and its engine has a 3-year warranty.

Pros of the PowerKing PK0803 Stump Grinder
  • Durable and compact, high-performance walk-behind handlebar stump grinder.
  • Powered by a Kohler Command Pro CH440 single-cylinder gasoline engine with a displacement capacity of 429cc, and power and torque outputs of 14HP and 9.74 Nm respectively.
  • Features a dual V-belt drive.
  • 12-inch cutter wheel has 9 carbide cutters that can be replaced.
  • Comes with an extra set of carbide teeth.
  • Cut width of 3.5inches.
  • Supports direct drive power transmission which allows cutter wheel to spin at 3600rpm.
  • Can be towed by a truck, or carried on truck bed.
  • Cutter head can be raised to 12inches above ground level, and can be sunk 9inches into the ground.
  • Cutting range of cutter wheel is 21 inches.
  • Adjustable engine position.
  • Has 4 chip curtains.
  • Features heavy-duty, premium-grade steel frame and undercarriage.
  • Features 2 lift handle and 2 lift bars.
  • SG supported by a 12-month limited warranty, while engine has a 3-year warranty.
The Cons
  • Expensive.
  • Requires assembly.

Bottom-line

PowerKing PK0803 is a durable, well-designed, and compact high-performance walk-behind handlebar SG with ATV tow capability on 2 ATV wheels.

It features a centrifugal clutch, emergency pull, dual V-belts drive system, emergency stop button, palm safety shut-off button, dual lift handles, ripcord safety shut-off, and a 12-inch cutter wheel that comes with 9 replaceable carbide cutters.

It also comes with safe-release front stands (footpegs). It is powered by a Kohler Command Pro CH440 single-cylinder gasoline engine with a displacement capacity of 429cc, and power and torque outputs of 14HP and 9.74 Nm.

It uses a dual belt drive to run the cutter wheel at 3600rpm. This cutter wheel has a cut width of 3.5inches, and it can be lifted 12 inches above the ground, as well as be sunk 9inches into the ground, which gives it a cutting range of 21inches.

Moreover, this SG features heavy-duty, premium-grade steel frame and undercarriage with 4 attached chip curtains.

5. Generac ST47019GENG Pro Stump Grinder

This is a durable, well-designed, and compact high-performance walk-behind handlebar SG with ATV tow capability on 2 knobby high-flotation ATV wheels, and features a centrifugal clutch, belt drive system, hand brake, hour meter, and a quality cutter wheel that runs at 2789-2800rpm.

Its cutter wheel comes with 8 cutter teeth that are arranged in pairs so that only 4 slots on the rotor disc are provided for fitting the teeth.

These cast steel cutter teeth are tipped with tungsten-carbide tips. The hour meter allows the user to track the usage of a cutter wheel and know when it is time for maintenance.

Usually, it is recommended that the cutter teeth are replaced after 60-70 hours of continuous use. This SG also features a transport shield that covers the cutter teeth and ensures that they do not contact the ground when the SG is in storage, being moved around, or being started.

It also comes with a tow bar. Its height adjustable handlebar can be raised through 3 height positions – 33 inches, 37 inches, and 40 inches.

This unique SG model is powered by a Generac G-Force single-cylinder gasoline engine with a displacement capacity of 390cc and torque output of 26.6 Nm.

The cutter wheel can be lifted 12 inches above the ground, as well as be sunk 9inches into the ground to chip away roots. It also has chip curtains.

This SG is designed and made by Generac Power Systems, Inc., as part of its Pro series of SGs. Its model number is ST47019GENG. It is constructed from 12-gauge steel.

Moreover, its construction and operational designs are similar to those of the DR Power Equipment Pro-XL SG model.

Unlike all the afore-reviewed SG models which come with a handle tower and a version of a bow handle, this SG lacks a handle tower and the 2 separate handlebars are mounted directly to the chassis and are bridged at their top by a horizontal metal strip.

Under its right handle is the hand brake, while the cutter head lever is fitted underneath the left handle. Its brake allows for steady pivoting.

Also, its tow bar features a 2-inch hitch ball. Moreover, like DK2 Power OPG777 its tow bar projects to the front of the cutter head.

Generac ST47019GENG Pro is shipped in a wooden crate that weighs about 233pounds. It comes in a semi-assembled state, with the overhead valve engine, cutter head, and motion transfer system already fitted together on the chassis.

The owner needs to fit the wheel assembly, handlebar assembly, and tow bar, among other hardware, to the chassis, as well as assemble the cutter wheel in order to have a fully-functional stump grinder.

Opportunely, an easy-to-follow assembly guide is provided, alongside assembly hardware, assembly tools, and some protective wearables.

The color scheme of the fully-assembled SG is orange and black. The fully-assembled SG weighs 187pounds and is 51inches long and 29inches wide. Its height is adjustable as explained above.

Like the afore-reviewed SG models, this SG features premium-grade, heavy-duty welded steel chassis.

However, this Generac SG model lacks a lift handle. Even so, mobility for this ST47019GENG Pro SG is provided by 2 ATV wheels. The wheels have a diameter of 15inches, and they are fitted on a heavy-duty axle.

Generac ST47019GENG Pro is supported by a 12-month limited warranty.

Pros of the Generac ST47019GENG Pro Stump Grinder
  • Durable and compact, high-performance walk-behind handlebar stump grinder.
  • Powered by a Generac G-Force single-cylinder gasoline engine with a displacement capacity of 390cc and torque output of 26.6 Nm.
  • Features a dual belt drive.
  • Cutter wheel has 8 carbide-tipped cutters that can be replaced.
  • Cutter wheel run at 2789-2800rpm.
  • Cutting range of cutter wheel is 21 inches.
  • Can be towed by a truck, or carried on truck bed.
  • Has chip curtains.
  • Mobility provided by 15-inch ATV wheels.
  • Features heavy-duty, premium-grade steel frame and undercarriage.
  • SG supported by a 12-month limited warranty.
The Cons
  • Lacks lift handle.
  • Requires assembly.

Bottom-line

Generac ST47019GENG Pro is a durable, well-designed, and compact high-performance walk-behind handlebar SG with ATV tow capability on 2 knobby high-flotation ATV wheels, and features a centrifugal clutch, belt drive system, hand brake, hour meter, and a quality cutter wheel that runs at 2789-2800rpm.

Its cutter wheel comes with 8 cutter teeth that are arranged in pairs. Its hour meter helps keep track of SG usage.

Also, it is powered by a Generac G-Force single-cylinder gasoline engine with a displacement capacity of 390cc and torque output of 26.6 Nm. Its cutting range is 21inches, and it comes chip curtains.