Some good four-cycle weed trimmers are the Cub Cadet CC350, Poulan Pro PPWT60022, Poulan Pro PP428C, Poulan Pro 966774301 and the Husqvarna 224L. PowerEquipmentDirect.com lists the Cub Cadet CC350 model as its top-selling weed trimmer as of June 2015.
In addition to the Cub Cadet model, the website also ranks the Honda models HHT35SLTAT, HHT25SLTAT and HHT35SUKAT, as being the second-, third- and fourth-highest selling four-cycle weed trimmers.
Aside from the Poulan Pro PPWT60022, which is a gas powered wheeled four-cycle string trimmer, the rest of the Poulan Pro four-cycle weed trimmers listed above are lightweight and designed to be used with small to medium sized lawns. These straight shaft and curved shaft weed trimmers can also be equipped with a number of attachments to create a multifunctional lawn and weed trimmer all within one tool.
The Poulon Pro model PPWT60022 is designed to be used for large and overgrown lawns, and it is generally reserved for professional landscapers. The wheeled trimmer has a large 22-inch cutting diameter and is driven by a powerful Briggs and Stratton engine.
The Husqvarna 224L is listed as the fifth best selling weed trimmer by PowerEquipmentDirect.com and is as lightweight as the comparable Poulan Pro shafted weed trimmers. The Husqvarna is also designed with a Smart Start System and an E-Tech II fuel system that make it easier to start and quieter while it is operating.