Best 4-Cycle Gas Weed Eaters to Buy In 2018

Best 4-Cycle Gas Weed Eaters

You started out with a 2-cycle gas weed eater, but then realized that it was proving to be a pain due to the frequent restarting of the motor and the messing around of fuel mix. Now it’s time to leave the job to a 4-cycle gas weed eater; one that has a higher torque potential and efficient fuel economy.

To give you a good start in your search for the best 4-cycle gas weed eater, we’ve already researched the products that might work best for you. This article reviews the top rated 4-cycle gas weed eaters and the features that give them an edge over other competitors.

4 Best 4-Cycle Gas Weed Eaters - Reviews

#1. Troy-Bilt TB575 EC 29cc 17-Inch 4-Cycle Straight Shaft Trimmer

Editor's Rating:  (4 / 5)

Troy-Bilt TB575 EC 29cc 4-Cycle Straight Shaft Trimmer

Our list of best 4-cycle gas weed eaters start with Troy-Bilt TB575. This weed eater comes powerful equipped with a 29cc engine. With it, you get a high torque and constant power that gets the job done. A SpringAssist mechanism provides effortless cranking that makes starting much easier. What’s more, the engine is designed to be compatible to a jump starter that eliminates the need for cord pulling.

This weed eater sports a dual-line bump head that trims faster and cuts twice with each revolution. With it, feeding the line only requires a tap against the ground and you’ll be good to go. Sporting a line diameter of 0.095 inches, this weed eater comes as an ideal choice for medium-heavy work. You get a cutting diameter of 17 inches, which means that you clear a large area in just a few passes.

This weed eater sports a dual-line bump head that trims faster and cuts twice with each revolution. With it, feeding the line only requires a tap against the ground and you’ll be good to go. Sporting a line diameter of 0.095 inches, this weed eater comes as an ideal choice for medium-heavy work. You get a cutting diameter of 17 inches, which means that you clear a large area in just a few passes.

A deluxe handle gives you multi-position grip that’s got an ergonomic comfort. At 15 pounds, Troy-Bilt TB575 is quite lightweight for a 4-cycle gas weed eater. With such a construction, you get reduced user fatigue and extended use that’s got lots of comfort to it. This weed eater comes with a 2-year limited warranty.


  • Lightweight construction of 15 pounds for easy maneuver and handling
  • Fast and effortless cranking provided by a spring assisted start mechanism
  • Compatible with a jump-starter
  • Accepts up to 10 different attachments
  • 2-year limited warranty


  • Bogs down under load if not warmed up

Who Should Buy?

Troy-Bilt TB575 is a true workhorse that’s powerful, versatile and much easier to handle. It makes a great choice for light commercial use or homeowners who have larger lawns with heavier weeds.

#2. Husqvarna 967055801 Straight Shaft 4-Cycle Gas String Trimmer

Editor's Rating:  (4.3 / 5)

Husqvarna 967055801 Straight Shaft 4-Stroke Gas String Trimmer

Husqvarna 967055801 comes with an engine size of 25cc. This engine has impressive features that makes your job much easier. With it, you get a SmartStart feature that makes starts quicker with minimum effort. The effort needed to crank the engine is reduced by up to 40%.

The ease-of-starting provided by this engine doesn’t end there. You get an AirPurge carburetor that takes easy starting to a whole new level. The engine sports a variable speed setting for easy customization. You can choose to set it at an idle speed of 3,100 RPM or maximum speed of 7,000 RPM.

The engine engages a gear-driven flex shaft that delivers more power to the cutting head. This gives fade-free power and consistent performance to give you an upper hand in your work. The shaft comes straight to give you an easy time when getting under obstacles. At 58.4 inches, the shaft is long enough to provided extended reach in hard-to-access areas.

Husqvarna 967055801 gives the convenience of a dual-line head that translates to double cutting and trimming capacity. The bump head needs only a tap against the ground for a quick line feed. With a line diameter of 0.095, this weed eater makes a handy choice for medium-heavy work.

Husqvarna 967055801 weighs 17 pounds, which is average for a 4-cycle weed eater. The average weight makes handling and maneuvering a little more easier. To compensate for the weight, you get an ergonomic multi-position grip handle that gives the weed eater a well-balanced design for easy control. This weed eater comes with a 2-year limited warranty.


  • Designed to work with any size of string
  • Works great in edging lawns
  • Effortless pull reduced by up to 40%
  • Has a complete line of repair parts available
  • 2-year limited warranty


  • At 17 pounds, the weed eater is quite heavy to carry

Who Should Buy?

Husqvarna 967055801 is powerful, fast and a little bit on the heavier side. It is a good choice for semi-professionals or homeowners in need of a medium-duty weed eater.

#3. Husqvarna 224L 25cc 4-Cycle Straight Shaft Gas Trimmer

Editor's Rating:  (4.4 / 5)

Husqvarna 224L 25cc 4-Cycle Trimmer

Husqvarna 965966702 is a lighter cousin of Husqvarna 967055801. This weed eater takes lightweight construction in the world of 4-cycle trimmers to a whole new level. It comes in a lightweight construction of 11.3 pounds, which makes it the lightest in its class. This reduces user fatigue to a greater percentage for improved productivity.

Husqvarna 965966702 doesn’t sacrifice power for its lightweight construction. It is equipped with a 25cc engine that’s got a power output of 1.07 HP. In addition to the impressive power, you get the convenience of easy and effortless start. This is made possible by air purge carburetor and a reduced pull resistance of up to 40%.

The engine is designed to be set to two different speeds for easy regulation of power. You can choose an idle speed of 3,100 RPM or get maximum power with a top speed of 7,000 RPM. Attached to the engine is a straight 58.4-inch shaft that provides easy reach underneath low bushes and shrubs. The shaft is made of steel and is gear-driven for increased durability and reliable power.

The bump trimmer head feeds automatically whenever tapped against the ground. This provides continuous working that adds more to the productivity. A line diameter of 0.095 inches come in handy to handle medium-heavy work. Husqvarna 965966702 provides a generous cutting path of 17 inches and comes with a 2-year limited warranty.


  • Pull effort is 40% less
  • Fast start that saves time
  • Lightweight construction of 11.2 pounds for easy handling
  • Gearbox-driven shaft delivers maximum power to trim head
  • 2-year limited warranty


  • Requires some setting after taking out of the box

Who Should Buy?

Husqvarna 965966702 comes with a powerful and durable engine made by Honda. It is solid and reliable to let you get many years from it. This weed eater comes very light for professional use. It is a good weed eater for semi-professional applications on large properties.

#4. Poulan Pro 966774201 PP428C 4-Cycle Gas Curved Shaft Trimmer

Editor's Rating:  (4 / 5)

Poulan Pro 966774201 PP428C 4-Cycle Gas Curved Shaft Trimmer

Poulan Pro 966774201 makes startup much easier. It comes equipped with a spring assisted system that reduces the effort needed in starting the engine. The 28cc engine comes powerful enough for commercial use.

This weed eater provides the convenience of a curved shaft. This lets you trim easily in tight and compact areas. What’s more, the curved shaft makes the weed eater much easier to control, something that functions to minimize strain.

You get a line diameter of 0.095 inches specially designed for medium-heavy trimming jobs. The cutting diameter of 17 inches in quite generous. With a few passes, you get to trim a larger area. What’s more, the dual-line head gives a trim and cut capacity that’s twice that of single-line head.

The head only needs a tap to the ground so you don’t have to stop in the middle of your job. The split boom lets this weed eater accept several attachments. The optionable attachments let you transform the weed eater into a cultivator, blower, pole pruner, edger, and more.

Poulan Pro 966774201 doesn’t disappoint when it comes to lightweight construction. It weighs at just 13 pounds. That means reduced fatigue and easy maneuver, something that translates to extended use and improved productivity.


  • Additional attachments available separately: edger, blower, cultivator, brush cutter and pole pruner
  • Durachrome engine for longer life
  • Effortless spring assisted pull start system
  • Idles quietly compared to other models
  • Comes lightweight at 13 pounds


  • This weed eater is non-returnable

Who Should Buy?

This weed eater is powerful and comes lightweight enough for semi-professional applications. It accepts various attachments that makes it a versatile weed eater. That said, it make a good multi-functional yard machine for medium trimming jobs.

4-Cycle vs. 2-Cycle Gas Weed Eater

Gas weed eater engines are not made the same. They come in two different styles: 2-cycle and 4-cycle. Each weed eater style has got its advantages and disadvantages that range from power to maneuverability. Let’s discuss each one and outline the differences for a better understanding.

#1. 2-Cycle Gas Weed Eater

2-cycle gas weed eater

This type of gas weed eater requires two upward and two downward movements to complete the power cycle. This engines comes to life when the end of combustion stroke and the start of combustion stroke happens at the same time. 2-cycle gas weed eaters are available in the price range of $90-$250.


  • Packs more power in a smaller engine, something that gives it a greater power-to-size ration especially at high speed
  • Comes lighter for ease-of-use and maneuverability
  • Are generally less expensive compared to 4-cycle gas weed eaters
  • Maintenance is simple due to less moving parts
  • Compact space-saving design
  • Generates less vibration for maximum user comfort
  • Much easier to start


  • Less efficient in terms of fuel economy
  • Torque generated is less
  • High emission levels since it burns oil
  • Mixing oil and gas can be quite messy at times

#2. 4-Cycle Gas Weed Eaters

4-Cycle Gas Weed Eaters

The 4-cycle weed eater does more of the same thing as a 2-cycle gas weed eater. The difference comes in the sense that it has two extra steps. In a 4-cycle weed eater, the process of intake, compression, power and exhaust are performed in a more concentrated manner, a feature that leads to less exhaust and quiet operation. 4-cycle gas weed eaters are available in the price range of $150-$400.


  • Great torque potential
  • Low emission levels since it doesn’t require mixing oil and gas
  • More efficient fuel economy
  • Quieter to save your ears


  • Lots of moving parts makes maintenance quite difficult
  • Generates higher vibration
  • Are much harder to start
  • More parts make them heavier

4-cycle gas weed eaters come in handy in situations where you can't put up with the emission and noisy operation associated with 2-cycle gas weed eaters.

Resource: Homeguides