X6 60V Max* 16" Cordless String Trimmer, Brushless (3.0 Ah Battery & Charger Included)
GTX6-M
$249.00
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The SENIX STMG-L 22" 160cc 4-Cycle Gas High Wheel String Trimmer is your secret weapon against overgrown lawns, stubborn weeds, and rough terrain. Powered by a durable 160cc Rato 4-Cycle engine, this walk-behind string trimmer tears through thick grass. Built for real work, the heavy-duty 22-inch steel deck covers more ground fast, while rugged 14-inch high wheels roll easily over uneven ground, rocks, and roots. Need precision? Adjust your cut height between 1.57" and 3" to match your yard’s wild side. When you're done conquering chaos, the fold-down handle makes storage a breeze. Unlike noisy, high-maintenance machines, our 4-Cycle engine runs quieter, burns cleaner, and sips fuel like it’s expensive whiskey. Plus, with our 2-Year Limited Warranty, you’ve got backup if things ever get gnarly. Perfect for small to medium yards, fields, fence lines, and anywhere regular mowers fear to tread.
Find the right tool for your needs.
GTX6-M
$249.00
SHOP NOWYes. The SENIX STMG-L features a powerful 160cc 4-cycle gas engine and a 22-inch cutting width, making it ideal for clearing tall grass, thick weeds, and overgrown areas. Its heavy-duty steel deck and walk-behind design make it a practical choice for maintaining fence lines, field edges, and rough sections of your property. It is not designed for cutting thick woody branches or trees.
The SENIX STMG-L combines a wide 22-inch cutting swath with a walk-behind design, allowing you to clear overgrown areas without carrying a handheld trimmer. Its large wheels help you navigate uneven ground, while the cutting line reaches areas that may be difficult for a conventional lawn mower. It's best suited for rough grass and weed control rather than precision mowing or creating a manicured lawn finish.
The SENIX STMG-L features rugged 14-inch wheels designed to improve maneuverability over uneven lawns and rough terrain. It's useful for clearing weeds along fence lines, field edges, and neglected areas. However, avoid loose rocks, hidden obstacles, slippery ground, and slopes steeper than 15 degrees. Always follow the owner's manual for safe operation on hillsides.
No. The SENIX STMG-L uses a 160cc 4-cycle engine that runs on unleaded gasoline without mixing gas and oil. Engine oil is added separately, and SAE 10W-30 oil is included with the machine. The engine is shipped without oil or gasoline installed, so be sure to add both before starting. Check the engine oil level before each use and follow the owner's manual for maintenance.
Yes. The SENIX STMG-L features an adjustable cutting-height system that lets you adapt the trimming height to different grass conditions, with a maximum advertised height of 3 inches. Use a higher setting for rough or uneven areas and adjust as needed for shorter grass. Its wide 22-inch cutting path helps cover more ground with fewer passes during routine property maintenance.
The SENIX STMG-L uses a fixed-line cutting head rather than a traditional bump-feed spool. Its owner's manual specifies approximately 4 mm (0.150-inch) replacement line cut into 21.5-inch lengths. To replace worn line, stop the engine, disconnect the spark plug wire, remove the old line, and install new pre-cut lengths following the manual. Keep both ends evenly balanced to reduce vibration and premature wear.
The SENIX STMG-L requires basic handle setup before first use. It comes with engine oil and starter trimmer line, but gasoline and oil must be added to the engine before starting. The machine features a primer bulb and recoil starter. Follow the owner's manual for the proper starting procedure, and use fresh gasoline for reliable operation. Its fold-down handle also makes storage more convenient.
The SENIX STMG-L requires regular engine oil checks, periodic oil changes, air filter maintenance, spark plug inspection, and replacement of worn trimmer line. Check the oil level and air filter before each use, and remove grass buildup from the deck and cutting head after operation. Keep the engine cooling areas clear of debris, and follow the owner's manual for maintenance intervals and seasonal storage.
| Power | Gas |
| Engine Type | Rato 160cc 4-Cycle |
| No-Load Speed | 3,600 RPM |
| Cutting Width | 22" |
| Line Diameter | 0.095" |
| Deck Material | Steel |
| Height Adjustment | 1.25" - 3.0" |
| Wheel Size | 14" |
| Weight | 70 lbs |
| Warranty | 3 Years |
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