BILT HARD 21 Inch Lawn Mower Gas Powered, 4-Cycle 144cc Engine, 3-in-1

The BILTHARD 21-Inch Gas Lawn Mower is a walk-behind mower designed for homeowners who want to maintain medium to large residential yards without dealing with battery runtimes or mixing fuel. Its 21-inch steel deck offers a wide cutting path that helps reduce the time you spend pacing across your lawn.

Powering the mower is a 144cc 4-cycle engine generating 3.4 horsepower and 5.75 ft.lb of torque. Because it is a 4-stroke motor, you can add regular fuel directly to its 27.1 fl.oz gas tank without blending two-cycle oil beforehand. The mower rolls on oversized 10-inch front and rear wheels, which assist with traction and maneuverability while guiding the steel deck across uneven ground.

Lawn maintenance flexibility comes from a synchronized single-lever height adjuster that lets you switch between 6 cutting positions ranging from 1.0 inch to 3.0 inches with one hand. The unit also includes full 3-in-1 grass management hardware. You can attach the rear collection bag for cleanup, install the mulching plug to feed clippings back into the turf, or attach the side discharge chute for standard mowing.

As a traditional gas-powered mower, it requires standard engine care and fuel handling. The height adjustment also tops out at 3.0 inches, which may be limiting if you prefer to keep your grass cut taller. Assembly is simplified, however, as the box includes the necessary tools, collection bag, discharge attachments, and initial engine oil.

Verdict: The BILTHARD 21-Inch Gas Mower is a solid choice for residential property owners who want a straightforward 4-stroke gas machine with versatile 3-in-1 bagging, mulching, and discharge options right out of the box.

• Deck Width: 21 inches
• Deck Material: Steel
• Engine Displacement: 144cc
• Engine Type: 4-cycle (4-stroke) gas
• Engine Output: 3.4 HP, 5.75 ft.lb torque
• Fuel Tank Capacity: 27.1 fl.oz
• Cutting Height Range: 1.0 to 3.0 inches (6 positions)
• Wheel Diameter: 10 inches (front and rear)
• Discharge Options: Rear bagging, mulching, side discharge

A great fit if you:

• Maintain a medium or large yard and want a wide 21-inch steel cutting path.
• Prefer a 4-stroke engine so you do not have to mix oil and gasoline together.
• Frequently switch between bagging clippings, mulching, and using a side discharge.
• Want simple one-handed adjustments across multiple grass cut heights.

Consider something else if you:

• Prefer cutting your lawn taller than the 3.0-inch maximum height setting.
• Want an electric or battery model that eliminates liquid fuel storage and oil maintenance.

Do I need to mix oil with the gasoline?
No. The mower uses a 144cc 4-cycle engine, which runs on straight gasoline and keeps engine oil separate.

What cutting heights are available?
The mower features a single-lever adjustment that offers 6 positions ranging from 1.0 inch to 3.0 inches.

What accessories come included in the box?
It comes with a grass bag, side discharge chute, mulching plug, engine oil, and tools for assembly.

How large is the fuel tank?
The fuel tank has a capacity of 27.1 fluid ounces.