Self-Propelled Walk Behind String Trimmer - 170cc Brush Hog

Our review finds the Self-Propelled Walk Behind String Trimmer best suited to homeowners with overgrown patches, tall grass and light brush who need a rugged, wide-cut tool that keeps going. Powered by a 170cc 4-cycle OHV engine, this mower-style string trimmer delivers the muscle to slice through thick weeds and persistent grass while the 22in cutting diameter reduces time spent on large areas. It is not a small battery unit for fine lawn detail, but it is a practical, heavy-duty option for clearing tough yards quickly.

Key Features

• Powerful engine: The 170cc 4-cycle OHV motor provides confident power to cut through thick overgrowth without frequent bogging down.
• Wide cutting path: The 22in diameter with tough nylon line clears a large swath in a single pass, making yard work faster on open areas.
• Self-propelled drive: A steady 3.06 km/h forward speed reduces effort on slopes and long runs so the operator guides rather than constantly pushes.
• Adjustable height: Eight cutting height positions from 1.6 to 3.7 in let you adapt to varied grass conditions and desired finish.
• Durable deck and wheels: A one-piece steel deck lowers vibration and the 10in flat-free wheels improve maneuverability on rough ground.
• Tool-free setup and storage: Foldable handle and simple assembly mean quick out-of-the-box use and compact storage when not in use.

Who It's For

This machine is ideal for homeowners with medium to large lots that include patches of tall grass, weeds, or light brush where a traditional mower struggles. It suits users who value a wide cutting path and the continuous power of a gas engine for extended clearing jobs.

It is less appropriate for small, manicured lawns requiring fine edging or for buyers seeking a lightweight electric trimmer. Those concerned about long-term plastic component durability should weigh mixed user reports before purchase.

Pros & Cons

Pros

• Robust 170cc engine delivers reliable cutting power for tough growth.
• Large 22in cutting diameter saves time across wide or overgrown areas.
• Self-propelled drive and 10in flat-free wheels reduce operator fatigue and improve handling.

Cons

• Some users report plastic parts that may be less durable than the steel deck and could require attention over time.
• The recoil pull start can be mixed in feel for some operators depending on setup and familiarity with gas engines.

Specifications

Our Verdict

The Self-Propelled Walk Behind String Trimmer is a solid value for property owners who need a powerful, wide-cut tool to handle overgrown grass and light brush. Its 170cc engine, steel deck and self-propelled design combine to make yard clearing faster and less tiring, though buyers should be aware of mixed feedback on some plastic components. For heavy-duty seasonal clearing it represents good capability and useful features for the price.

Frequently Asked Questions

Is this mower easy to start?
Yes, it uses a manual recoil ignition typical of small gas engines and most users report reliable starting when maintained correctly.

Can it handle tall weeds and light brush?
Yes, the 170cc engine and nylon cutting line are designed to cut through thick grass, weeds and light brush effectively.

How is storage and assembly?
The unit features tool-free assembly and a foldable handle for compact storage when not in use.