4 Best Walk Behind String Trimmers 2025 in the United States

The BILT HARD Walk Behind String Trimmer features a powerful 170cc 4-cycle OHV engine, offering ample cutting power for heavy mowing tasks. With a 22-inch cutting width, it covers a wide area, making it efficient for larger yards or farms. The trimmer uses a heavy-duty nylon line that is effective in clearing thick grass and weeds, ideal for maintaining overgrown areas.

The 14-inch never-flat wheels ensure easy maneuvering across different terrains, and the foldable ergonomic handle improves grip and storage convenience. However, the manual recoil starting mechanism might be less convenient for some users compared to automatic or electric start options. Weighing 54.1 pounds, it is relatively heavy, which might be a drawback for some users when pushing it around. The adjustable handle is a significant plus, offering customization for user comfort.

Assembly is required, which could be a disadvantage for those who prefer a ready-to-use product. This string trimmer is gasoline-powered, providing strong performance but also requiring regular maintenance and handling precautions. The product's robust design, including a one-piece steel deck, ensures durability and stability, although it may contribute to the weight. Its ability to reach tight spaces and tackle tough brush makes this trimmer well-suited for users with challenging landscaping needs.

The Earthquake Walk Behind String Mower is a gas-powered trimmer designed to tackle heavy brush and thick weeds where regular push mowers struggle. Its 160cc Viper 4-cycle engine provides solid power, making it effective for rough yard conditions. The 22-inch cutting width is wide enough to cover ground quickly, and the 14-inch never-go-flat wheels help it move smoothly over uneven terrain without the hassle of flat tires. Weighing 70 pounds, it’s fairly heavy but stable, which might feel a bit bulky for smaller users or tight spaces. The adjustable handlebar with five height positions allows for comfortable use for different users and tasks.

Starting the mower is straightforward thanks to the hand bail system that keeps the engine running safely and stops the cutting head when needed, reducing the need to restart frequently. The steel deck adds durability and lowers vibration, which can make longer jobs less tiring. Assembly is simple, mostly involving unfolding and tightening knobs, so it’s ready to run quickly out of the box.

Its weight and size mean it’s more suited for medium to large yards with tough vegetation rather than precise trimming near delicate plants or small gardens. Some users might find it less maneuverable compared to lighter models. If you need a reliable, powerful trimmer that handles challenging brush with minimal maintenance, this mower is a good choice. The included 5-year warranty adds peace of mind for long-term use.

The Eyoloty 490-040-C035 trimmer line is designed to fit a variety of popular walk-behind string trimmers, including brands like MTD, Cub Cadet, Troy-Bilt, and more. It uses a 0.155-inch diameter line, a common size for many gas trimmers, making it a versatile replacement choice. The line comes pre-cut in 1.54-foot lengths, with 40 pieces included, totaling around 61.6 feet, providing plenty of supply for multiple uses.

Made from nylon, the line is both flexible and strong, with a spiral shape that improves toughness and cutting sharpness compared to traditional lines. This design enhances cutting efficiency, allowing you to trim grass and weeds more effectively. Weighing just under 11 ounces, the package is lightweight and easy to handle.

If you own a compatible trimmer model, this product offers a reliable and cost-effective way to keep your equipment running smoothly. Customer reviews are generally positive, with a 4.4-star rating reflecting good user satisfaction. Support is available 24/7, which is helpful if you encounter any issues or have questions.