Key Features:
- Eliminates the need for regular oil changes with “Check, Don’t Change” system
- TriAction cutting system for a well-groomed, finely mulched lawn
- Front-wheel-drive transmission and high rear wheels for improved maneuverability
- 3-in-1 deck design offers versatile cutting and disposal options
- Backed by a 4-year limited warranty for peace of mind

The Troy-Bilt 21-inch 159cc Check Don’t Change Oil Front Wheel Drive Self Propelled Gas Lawn Mower is a feature-rich and user-friendly option that simplifies lawn maintenance with its innovative “Check, Don’t Change” oil system. This self-propelled mower is designed to handle a variety of terrain, from flat yards to moderately hilly areas, thanks to its front-wheel-drive transmission and 11-inch high rear wheels.
The standout feature of the Troy-Bilt mower is its Check, Don’t Change oil system, which eliminates the need for regular oil changes. Simply check the oil level before each use and top it off as needed, reducing maintenance time and the hassle of oil disposal. The mower’s TriAction cutting system, which includes a rake bumper, specialized blade, and symmetrical deck, ensures a well-groomed lawn with finely mulched clippings.
In addition to the innovative oil system, the Troy-Bilt mower boasts a 3-in-1 deck design that allows you to choose between rear bagging, mulching, and side-discharging options. The front-wheel-drive transmission and 11-inch high rear wheels provide enhanced control and stability, making it easier to navigate through tough spots and up hills. The 1.9-bushel rear bag collects grass clippings for easy clean-up or composting.
The Troy-Bilt mower’s front-wheel-drive design is a unique feature that sets it apart from many other self-propelled models. This configuration provides improved maneuverability and control, especially when navigating tight spaces or dealing with changes in terrain. The front-wheel-drive system helps the mower glide smoothly over uneven ground and tackle moderate inclines with ease, reducing the physical effort required from the user.
Another standout feature of the Troy-Bilt mower is its TriAction cutting system. This innovative design includes a rake bumper, a specialized blade, and a symmetrical deck, all working in harmony to deliver a well-groomed, finely mulched lawn. The rake bumper lifts the grass upright, ensuring an even and consistent cut, while the blade and deck work together to finely shred the clippings, returning valuable nutrients to the soil.
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