Incoming Summer 2026
TMG-GSG12

KohlerPowered Walk Behind & Tow Behind Stump Grinder, 12 Carbide Teeth, 610 mm (24″) Cutting Capacity, 14 HP Engine, TMG-GSG12

Product Manual
TMG Industrial Walk Behind Kohler Powered Stump Grinder, ATV/UTV Tow Bar, 12 Carbide Teeth, 24” Cutting Capacity, 14 HP Gasoline Engine, TMG-GSG12
Incoming Summer 2026
TMG-GSG12
$2,699.00
$2,699.00 - $2,699.00
$2,699.00
$2,299.00
$2,299.00 - $2,299.00
$2,299.00
$2,699.00 Save $400.00
$2,299.00

Arriving in Summer 2026 Learn More
1-800-870-844
Product Image 1 Product Image 2 Product Image 3

Specifications icon Specifications

  • Teeth Count: 12
  • Cutting Wheel Diameter: 356 mm (14")
  • Cutting Wheel Thickness: 89 mm (3.5")
  • Wheel Speed: 2500 RPM
  • Cut Depth (Below Ground): 254 mm (10")
  • Cut Height (Above Ground): 610 mm (24")
  • Tire Size: 370 × 180-150 mm (14.5" × 7.0"-6")
  • Assembled Dimensions (L x W x H): 2540 × 810 × 1140 mm (100" × 32" × 45")
  • Engine:
    • Displacement: 429 cc
    • Power: 14 HP (10.5 kW)
    • Oil Capacity: 1.16 L
    • Model: Kohler® CH440 14 HP Command Pro Series
    • Type: Four-cycle, OHV, aluminum head & crankcase
  • Features:
    • Tow Bar & Trolley Wheel: ✓
    • Centrifugal Clutch: ✓
    • Drum Brakes: ✓
    • Rear Discharge: ✓
    • Multi-Position Handle: ✓
KohlerPowered Walk Behind & Tow Behind Stump Grinder, 12 Carbide Teeth, 610 mm (24″) Cutting Capacity, 14 HP Engine, TMG-GSG12-specifications-image

Product Description icon Product Description

The TMG-GSG12 Stump Grinder offers heavy-duty stump removal with flexibility and rugged performance. Featuring a 24″ cutting capacity with 12 carbide blades driven by a 14 HP Kohler engine and dual belts, it tackles both surface and subsurface stump removal. The integrated centrifugal clutch and drum brake ensure safe, controlled operation. Its commercial-grade frame and all-terrain tires deliver stability across challenging landscapes, while the combination of walk-behind handle and ATV/UTV towbar make it adaptable to various site requirements. Ideal for contractors, land-clearing crews, and property maintenance pros, the TMG-GSG12 brings professional-grade capability in one versatile machine.  

TMG also offers the compact walk-behind TMG-GSG9 model. 

Shipping Information icon Shipping Information

  • Shipping origin: Ships from one of our main warehouses in Australia
  • Processing time: Orders typically processed and shipped within 2 to 3 business days
  • Delivery time: Usually within 10–15 business days, depending on your location and accessibility
  • Packaging: Shipped in a wood-crate shipping box
  • Shipping dimensions: 106.7 cm (L) × 81.3 cm (W) × 91.4 cm (H) (42" × 32" × 36")
  • Shipping weight: 150 kg (330 lb)
Shipping from New Zealand
What happens after you place your order?
KohlerPowered Walk Behind & Tow Behind Stump Grinder, 12 Carbide Teeth, 610 mm (24″) Cutting Capacity, 14 HP Engine, TMG-GSG12-shipping-info-image

Warranty icon Warranty

We know that when you invest in equipment, you're counting on it to perform day in and day out. At TMG Industrial, that trust means everything to us. That’s why we include a 1-year Warranty with every product we sell—because you deserve confidence with every purchase.

Our warranty is there to make sure your equipment stays reliable across the seasons, covering any issues caused by manufacturing defects in materials or workmanship. From fieldwork to property maintenance, you can count on your TMG equipment to deliver.

More than just warranty coverage, we’re committed to supporting you throughout the life of your machine. Our customer service team is here to help, whether you need technical advice, troubleshooting, or parts support.

For full warranty terms, please see our warranty policy

Questions & Answers icon Questions & Answers

  • Q: How is the TMG-GSG12 powered?
    A: It uses a Kohler CH440 14 HP Command Pro engine and dual belt drive.
  • Q: What is the cutting depth?
    A: It cuts 610 mm above and 254 mm below ground for full stump removal.
  • Q: What safety features are included?
    A: The grinder has a centrifugal clutch and drum brake for safe operation.
  • Q: Is it portable on rough terrain?
    A: Yes – equipped with heavy-duty, all-terrain tires and a commercial-grade frame for stability.
  • Q: Is it tow capable?
    A: Yes — It includes an ATV/UTV towbar and handles for walk-behind or tow-behind use.
  • Q: What is the warranty for the TMG-GSG12?
    A: It is backed by a 1-year manufacturer warranty. This covers defects in materials and workmanship. Customer support and spare parts are also available.