Ultimate Dosko 688cc Stump Grinder Review 2026

Product Review: Dosko 688cc Electric Start Stump Grinder – 620-20HE

Product: Dosko 688cc Electric Start Stump Grinder – 620-20HE
About this item: Sold on Amazon

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Introduction

If you’re a landscaping contractor, groundskeeper, or a homeowner tackling large stump removal projects, the Dosko stump grinder lineup deserves a close look. The Dosko 688cc grinder — model 620-20HE stump grinder — is a heavy-duty, commercial-oriented machine built to make stump removal faster and less labor intensive. This review covers features, specs, pros and cons, and buyer-focused details like where to buy and what to expect in terms of maintenance. If you want to buy stump grinder online or compare stump grinder price and options, this guide will help you decide whether the Dosko is the right tool for your needs.

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What is this product?

The Dosko 688cc Electric Start Stump Grinder – 620-20HE is a compact, self-propelled stump grinder powered by a reliable Honda GX390 V-Twin 688cc engine. It is designed for heavy-duty work and aimed at landscaping professionals and serious DIYers who need a powerful grinding solution. As an electric start stump grinder, it removes the hassle of recoil starts with a keyed electric starter that runs off a standard 12-volt lawn tractor battery (Group U1) — battery not included.

Quick overview

  • Model: 620-20HE stump grinder
  • Engine: 20HP/688cc Honda GX390 V-Twin
  • Start: Keyed electric starter (no recoil back-up)
  • Use case: Heavy-duty stump grinding for large stumps and commercial jobs

Key Features (from “About This Item”)

Main selling points

  • Sold on Amazon — easy to order and backed by a major platform for returns and support.
  • 20HP / 688cc Honda GX390 V-Twin 4-Cycle OHV Engine — dependable, commercial-quality power.
  • OHV design for increased efficiency and optimal power transfer.
  • Easy starting with keyed electric starter — no recoil back-up needed; ideal for contractors who value reliability and convenience.
  • 12-volt lawn tractor battery required (Group U1) — battery not included.
  • Heavy Duty Drive Belt and Idler Bearings — built for long-term durability under frequent use.

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Detailed Description (from Product Description)

The stump grinder 688cc is powered by a 20HP/688cc Honda GX390 V-Twin 4-Cycle OHV Engine. The OHV design provides increased efficiency and optimal power transfer to the cutting head, making this model suitable as a heavy duty 688cc electric start stump grinder for large stumps. One of its most practical features is the keyed electric starter — this is an electric start stump grinder so you don’t have to rely on recoil starting in wet or cold conditions. It requires a 12-volt lawn tractor battery (Group U1) which is not included. The unit also uses a heavy duty drive belt and idler bearings to handle tough grinding jobs and reduce downtime.

This model’s combination of power and electric start capability makes it a strong option for those searching for a compact self propelled stump grinder with electric start 620-20HE that can handle commercial workloads with reduced maintenance.

Pros and Cons

Pros

  • Powerful: 688cc Honda engine delivers consistent torque for large stumps.
  • Convenient electric start: No recoil hassle — great for frequent use.
  • Durable build: Heavy duty drive belt and idler bearings reduce wear.
  • Commercial-capable: Best stump grinder for landscaping contractors 688cc level of performance.

Cons

  • Weight and transport: Heavy — may require a trailer or truck for moving between jobs.
  • Battery not included: You must source a Group U1 12-volt battery.
  • Higher initial cost: If comparing stump grinder price vs smaller models, this one sits in the pro segment.

Who Should Buy This Product

This machine is ideal for landscaping contractors, municipal crews, tree service companies, and serious homeowners tackling frequent or large stump removal. If you want to purchase 620-20HE stump grinder, or order Dosko grinder for commercial use, the Dosko 688cc grinder offers the horsepower and electric start convenience needed for productive days on the job. If budget or one-off use is a concern, you might also consider options to rent to own stump grinder or find a stump grinder dealer with rental/purchase plans.

Comparison with Similar Products

Compared to smaller gas models, the Dosko stump grinder excels in power and continuous duty capability. Versus cheaper consumer-focused grinders, it offers better drivetrain components and a commercial-grade Honda engine. If you’re comparing the Dosko 620-20HE with other 20HP machines, prioritize:

  • Engine brand and serviceability — Honda GX390 is widely supported.
  • Starting system — electric start saves time and frustration on busy jobs.
  • Drive components and bearings — important for long-term reliability.

For buyers searching stump grinder for sale or evaluating stump grinder dealer offers, this model is positioned for contractors rather than casual users.

Frequently Asked Questions

Is this the right machine if I want to buy stump grinder online for commercial use?

Yes. The Dosko 620-20HE is engineered for commercial performance and is a strong candidate if you plan to purchase a professional-grade, heavy-duty grinder.

What about maintenance and replacement parts?

The Dosko 688cc grinder features standard drive belts and bearings — parts that are commonly available. Search for replacement parts for Dosko 620-20HE stump grinder through authorized dealers or general parts suppliers to keep downtime low.

How to operate safely?

Follow manufacturer safety guidelines and wear appropriate PPE. For guidance, look up resources on how to operate Dosko electric start stump grinder safely and consider formal training if using the machine commercially.

Final Verdict

The Dosko 688cc Electric Start Stump Grinder – 620-20HE is a reliable, powerful choice for professionals who need a heavy-duty solution with the convenience of an electric start. It meets the needs of landscaping contractors and municipal crews looking for a low maintenance stump grinder with 688cc engine power and robust drivetrain components. If you want to buy stump grinder online or compare stump grinder price for a professional unit, this model is worth strong consideration.

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Whether you’re ready to purchase 620-20HE stump grinder today, or are comparing options from a local stump grinder dealer, the Dosko 688cc grinder balances power, convenience, and durability for professional stump removal projects.

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