Need Assistance? Call /Text Us! (888) 885-7067
Dosko  |  SKU: 691SP-20HE

Dosko Stump Grinder | 20 HP Self-Propelled | Honda GX630 | Hydrostatic Drive | Electric Start | Model 691SP-20HE

$10,984.00
We're Here When You Need Us
Support team
Instant Live Chat
Available now
(888) 885-7067
Call us and talk to a real person, no call center
info@garageautosupplies.com
Email us for in-depth guidance

We're Available When You Need Us. Give Us A Call or Email.

The Dosko 691SP-20HE is the professional's choice for high-production stump grinding. Powered by a 20 HP Honda GX630 (688cc) electric start engine with hydrostatic self-propulsion, this machine makes light work of large stumps while reducing operator fatigue on long jobs. It grinds up to 24 inches above grade and 18 inches below, giving tree crews and landscapers the capacity to handle the biggest stumps on the job site.

The hydrostatic drive system gives you precise speed control without belts or friction drives — just smooth, responsive movement that lets you navigate around tree roots, curbs, and tight yard spaces. All-terrain tires keep the unit tracking straight across uneven ground. Greenteeth 700 Series teeth deliver clean, efficient grinding, and the side discharge frame protects the operator while keeping the work area organized.

Key Features

  • Honda GX630 (688cc) electric start engine — 20 HP professional power
  • Self-propelled hydrostatic drive for easy maneuverability on the job site
  • Grinds 24 in. above grade, 18 in. below grade
  • 14-in. dia. x 3/8-in. thick cutter wheel at 3000 RPM
  • Greenteeth 700 Series Teeth (8) — concave dish edge, rotates 3x before replacing
  • Direct belt drive with 4-groove PowerBand and idler bearing tensioners
  • 1.375-in. diameter bearings
  • All-terrain tires for stability on uneven ground
  • 5-position adjustable handlebar
  • Unique side discharge frame
  • Oil shutdown sensor
  • Note: Battery not included — shipping restrictions apply to electric start units with batteries
Specifications Details
Equipment Type Stump Grinder (Self-Propelled)
Engine Honda GX630
Displacement 688cc
Fuel Type Gasoline
Starter Electric
Oil Alert No
RPM 3000
Cutter Wheel 14 In. Dia. x 3/8 In. Thick
Cutting Capacity 24 In. Above Grade, 18 In. Below Grade
Teeth Greenteeth 700 Series (8)
Drive Direct Belt Drive — 4 Groove PowerBand with Idler Bearing Tensioners
Bearings 1.375 In. Diameter
Tires 16 In. x 6.50-8 In. with Adjustable Brake Band
Dry Weight 500 Lbs.

Demonstration

Free Shipping
On most orders
No Sales Tax
Outside NC
Expert Support
Call or text (888) 885-7067
Price Match
Found it lower? We beat it
CUSTOMER REVIEWS

What Our Customers Say

Real reviews from pros and DIYers who outfitted their garage, shop, or job site with us.

Built like a tank VERIFIED
★★★★★

Built like a tank

It handles my F-250 like it's nothing. 12,000 lb capacity gives me confidence with the heavy trucks. Best investment I've made for my garage.

K

Kevin Durk

Dallas, TX

Verified Purchase

Best investment for my garage VERIFIED
★★★★★

Best investment for my garage

I've always worried about dust, moisture, and dings. This solved all of that. The airflow keeps everything clean and dry inside.

M

Mike Johnson

Houston, TX

Verified Purchase

Easiest garage upgrade I've ever done VERIFIED
★★★★★

Easiest garage upgrade I've ever done

These tiles just snap together, no glue, no tools, no prep. Whole two-car garage done in one afternoon. Cleans up with just a hose.

S

Sarah Wallis

Tampa, FL

Verified Purchase

Worth every penny VERIFIED
★★★★★

Worth every penny

Bought the MEC10 to dig trenches on my property. Compact enough to fit through my gate but digs almost 66 inches. Saved me thousands vs. hiring out.

T

Travis Murry

Chicago, IL

Verified Purchase
Dealer Direct

Need a custom quote?

Volume orders, commercial builds, package deals, or a specific model you can't find online — we'll price it for you fast.

Authorized Dealer Tax-Exempt Setup Free Shipping Reply within 24 hrs
Get My Custom Quote Or call (888) 885-7067
FLEXIBLE FINANCING OPTIONS

Buy Now, Pay Later

Split your purchase into easy installments with no hidden fees. Shop now and pay over time.

1

Choose Your Plan

Select from flexible payment plans that fit your budget and timeline.

2

Instant Approval

Complete your purchase and get your items right away with instant approval.

3

Pay Over Time

Make easy payments over time with no hidden fees.

Learn More About Financing
WHY CHOOSE US

The Garage Auto Supplies Advantage

Local Dealer
Free Shipping
Pickup or pay for delivery
No Sales Tax
Charges sales tax
Expert Support
General call center
Price Match
Set pricing, no flexibility
RECOMMENDED
Garage Auto Supplies
Free Shipping
On most orders
No Sales Tax
No sales tax outside NC
Expert Support
Real equipment experts
Price Match
Found it lower, we beat it
Big Box Store
Free Shipping
Pickup or pay for delivery
No Sales Tax
Charges sales tax
Expert Support
General call center
Price Match
Set pricing, no flexibility

Frequently Asked Questions

Find answers to common questions about our products and services

Yes, for most orders ship free across the United States — no minimums, no hidden fees. The price you see on most product pages is your all-in cost.
No sales tax outside North Carolina
We accept returns within 30 days of delivery for most items in new, unused condition with original packaging. Some items may have different return policies due to manufacturer restrictions. Please contact us to initiate a return.
Send us the competitor’s price, and we’ll do everything we can to make sure you get the best deal possible.
Orders placed Monday through Friday are processed promptly. Orders received on weekends (Saturday or Sunday) are typically processed on the next business day. In-stock items generally ship within 2–3 business days after processing. Backordered items may require additional time before shipment. While we strive to provide accurate lead times on our website, these estimates are not guaranteed and may vary due to supply conditions and other unforeseen factors.
You can reach our customer support team by phone at (888) 885-7067, emailing info@garageautosupplies.com, or live chat during business hours.
Orders can be cancelled or modified within 24 hours of placement, as long as they haven't shipped yet. If you need to cancel or modify an order, please contact us as soon as possible. Orders that have already shipped cannot be canceled and will have to follow our standard return policy.
Yes, we are an authorized dealer for all the brands we carry. This means you receive full manufacturer warranties, genuine products, and access to manufacturer support. We work directly with manufacturers to ensure product authenticity and quality.

Still have questions?

Call Us

BUYER'S GUIDE

Not sure which lift is right for you?

Types, capacities, space requirements, installation — everything you need to know before buying a car lift.

Read Car Lifts 101