Who Makes The Most Reliable Lawn Mower Engines? (Explained)

As an Amazon Associate we earn from qualifying purchases made on our website. If you make a purchase through links from this website, we may get a small share of the sale from Amazon and other similar affiliate programs.

Are you looking for a lawn mower engine that won’t let you down?

We understand how frustrating it can be when you buy a product only to find out it can’t stand the test of time. That’s why we’ve gone through and compiled the best of the best when it comes to reliable lawn mower engines.

The best lawn mower engines for reliability are those made by Honda, Kawasaki, and Briggs. Honda is known for their superior engineering and manufacturing quality, but are relatively expensive. However, Kawasaki and Briggs lawn mower engines are good quality, reliable and available at an affordable price range.

Keep reading to find out who makes the most reliable lawn mower engines, the pros and cons of each, and more.

The Top 3 Most Reliable Lawn Mower Engines

Our PickLawn Mower Engines
Top PickHonda
Best OverallKawasaki
Budget PickBriggs

1. Honda

Honda lawn mower engines are reliable and powerful engines that deliver superior performance and are designed to last a long time with minimal maintenance. They are the top notch brand, when it comes to lawn mower engines.

Honda’s lawn mower engines are designed to provide a quiet, efficient, and powerful solution for lawn mowing. They feature a four-stroke overhead valve design, providing an efficient and powerful engine.

Honda engines are known for their durability and are built to last for many years with minimal maintenance.


  • Quiet and efficient performance
  • Durable and long-lasting
  • Low maintenance
  • Variety of sizes and models available
  • Reliable and powerful


  • Can be expensive

How long it generally lasts:

Honda lawn mower engines typically last for many years with minimal maintenance.

Depending on the make and model, a Honda lawn mower engine can last anywhere from 15-20 years with regular maintenance.

Honda lawn mower engines are designed to provide a reliable and powerful engine for lawn mowing. They are available in a variety of sizes and models, so you can find the perfect engine for your needs.

2. Kawasaki

Kawasaki lawn mower engines are some of the most reliable and durable engines on the market. They are known for their longevity, power, and ease of maintenance. They are also relatively affordable and are available in a range of sizes and power outputs.


  • Powerful and reliable engine
  • Easily accessible parts and accessories
  • Low emissions
  • Long life expectancy
  • Quiet operation
  • Relatively inexpensive


  • Relatively heavier than other lawn mower engine models
  • Not as powerful as some other models

How long it generally lasts:

Kawasaki lawn mower engines are built to last. The average engine lifespan is around 3,000 hours of use. Factors such as maintenance, usage, and environment can affect the life of a Kawasaki engine. Regular maintenance and proper usage can extend the life of the engine.

3. Briggs

Briggs lawn mower engines are widely used in lawn mowers and other small engine applications. They are known for their reliable performance, durability, and affordability.

They are relatively easy to maintain and repair, and can last for many years with proper care and maintenance.


  • Reliable performance
  • Durable construction 
  • Easy to maintain and repair
  • Affordable 


  • Not as powerful and robust as other brands

How long they generally last:

Briggs lawn mower engines can last for many years with proper care and maintenance. Generally, with regular oil changes and tune-ups, Briggs lawn mower engines can last up to 500 – 1000 hours. So roughly, you can expect a lifespan of up to 10 years.

Factors That Affect The Reliability Of Lawn Mower Engines

1. Maintenance:

Regular maintenance is one of the most important factors in determining the lifespan of a lawn mower engine. This includes regular oil changes, spark plug replacements, sharpening of the blades, and cleaning of the air filter.

2. Usage:

The amount of use the engine receives is another factor that will affect its lifespan. Heavy-duty mower engines will typically have a shorter life than those used for lighter jobs.

3. Quality:

The quality of the engine has a big impact on its lifespan. Cheaper engines will not last as long as those made with higher-quality materials.

4. Fuel:

The type of fuel used in the lawn mower can also affect its lifespan. Higher quality fuel will help the engine last longer than lower quality fuel.

How To Maximize The Reliability Of Your Lawn Mower Engine?

Here are some tips that can help you make your Lawn mower engine last longer:

Change the oil regularly:

Changing the oil on a regular basis will help your lawn mower engine last longer. Oil helps to lubricate the engine parts and keep them running smoothly. 

It’s recommended to change the oil every season or after 50 hours of use.

Clean the air filter:

A dirty air filter can restrict air flow to the engine, making it less efficient. Clean the filter regularly to ensure that the engine can get plenty of clean air.

Check and replace spark plug:

A spark plug that is in poor condition or worn can cause misfiring, which can cause a buildup of unburned fuel, and carbon deposits, and lead to a decrease in engine performance.

By replacing the spark plug regularly, you can help keep the engine running at its optimal performance and extend its lifespan. Additionally, the spark plug helps the engine start quickly, reducing the amount of time it takes for the motor to start and run.

Clean the lawn mower deck

Cleaning the deck of a lawn mower is crucial for several reasons. First, it prevents the buildup of grass clippings, dirt, and debris that can cause corrosion and wear on the mower’s engine. This buildup can also cause clogging, which can lead to a decrease in fuel efficiency and power output.

Additionally, cleaning the deck helps to ensure that the mower’s blades are able to freely spin, improving cutting efficiency 

Final Thoughts

So, when it comes to reliable lawn mower engines, you have a lot of options to choose from. Honda is the top pick for reliability and quality.

If you have a medium budget, but don’t want to sacrifice quality, then go for Kawasaki.

But if your budget is limited and you need a reliable, decent-quality engine, then Briggs is the brand for you. Whichever you choose out of these brands, you can rest assured that your lawn mower will be running smoothly and reliably for a long time.

Recent Posts