Are Lawn Mower Solenoids Universal? (Explained)

Do you need to replace the solenoid on your lawn mower but aren’t sure if it’s universal? Our blog post on Are Lawn Mowers Solenoids Universal? Explained is here to help. We explain what a solenoid is, how it works, and whether it’s interchangeable between different models of lawn mowers.

If you’re curious about whether lawn mower spark plugs are universal, check out our post on Are Lawn Mower Spark Plugs Universal? for a comprehensive answer.

How to test a lawn mower solenoid
Lawn mower solenoids are essential components for starting the engine.
Not all lawn mower solenoids are universal, as they come in different sizes and wiring configurations.
It’s important to check the manufacturer’s specifications and compatibility before buying a replacement solenoid.
Signs of a bad solenoid include a clicking sound when turning the key, a slow or sluggish start, or no response at all.
Replacing a lawn mower solenoid can be done by yourself with the right tools and knowledge.

Do You Need To Replace A Lawn Mower Solenoid?

If you’re looking to replace a solenoid, you should definitely do so. Solenoids can be expensive, but they are also very sensitive and easily damaged. 

They are not as durable as other parts of your lawn mower, so they need to be replaced regularly if they break or stop working properly.

When it comes to maintaining your lawn mower, don’t forget to pay attention to the spark plugs! Check out our article on Are Lawn Mower Spark Plugs Universal? to learn more about the importance of choosing the right spark plugs for your lawn mower.

Are Lawn Mower Solenoids Universal?

If you’re looking to replace a lawn mower solenoid, there are a few things you should know first. First, not all solenoids are universal: if you want to replace your lawnmower’s old one with a new one from another manufacturer or model, it won’t work. 

You need to know the make and model of your lawn mower and make sure that the new solenoid fits properly into the original bracket that holds it in place. Also note that newer batteries may require a different kind of solenoid than older ones did—so don’t just buy any old replacement part!

What Is A Lawn Mower Solenoid?

You’re probably wondering what a lawn mower solenoid is and how it works. A lawn mower solenoid is the device that makes your lawnmower blades spin. When you turn the key in your ignition, electricity travels through a wire to get to the starter button on your control panel (or key switch). 

The starter button then sends electrical current through another wire to activate a relay, which turns on an electric coil inside of the solenoid. This causes current to flow through another wire into your cutting blade assembly, making them move up and down as needed. That’s what makes your grass cutters start spinning!

They may seem complicated but these small components play an important role in keeping our mowers running smoothly over time

A sharp and properly installed lawn mower blade is key to achieving a clean and healthy cut. Find out whether or not lawn mower blades are universal in our informative article on Are Lawn Mower Blades Universal?, and ensure that you’re using the right blade for your machine

How Does A Lawn Mower Solenoid Work?

A solenoid is a small device that usually consists of an electromagnet holding back a spring that controls the flow of current through a set of contacts. The basic idea is to use this setup to open and close one or more circuits. 

When you press on these contacts with your finger, they move apart and allow electricity to pass through them. There are also manual override switches on some models which will allow you turn off the solenoid when needed.

What Kind Of Tools Do You Need To Replace A Lawn Mower Solenoid?

  • Safety glasses – You’ll want to protect your eyes from debris and flying particles during the repair process.
  • Screwdriver – A small screwdriver (preferably one with Phillips head tips) can be helpful in loosening or tightening screws on the solenoid itself, as well as some other parts of your lawnmower that may need to be removed before accessing it.
  • Socket wrench – A socket wrench is needed when removing bolts from certain parts of your lawnmower, such as its engine housing or pulleys (which are often secured by hex-head bolts).

How Much Does It Cost To Replace A Lawn Mower Solenoid?

The cost of replacing a lawn mower solenoid depends on brand and model, as well as whether you can do the work yourself. If you buy one from the manufacturer, they may charge more than if you bought it from Amazon or some other online retailer.

If you need to hire someone to fix your lawnmower’s problem, this will also increase the cost of fixing your machine. The same goes for buying parts online versus buying them at an auto parts store in person (which can be cheaper).

Where Can I Find Out How To Replace A Lawn Mower Solenoid?

If you have the time and inclination, you can learn how to replace the solenoid on your own lawn mower by doing a little research online. 

There are plenty of how-to guides available; just type “how to replace a lawn mower solenoid” into Google, and you’ll find many detailed instructions on how to do it yourself. For example, one site says:

  • First disconnect the spark plug wire from its post on top of the engine block
  • Remove air filter cover (if equipped) by loosening its two mounting bolts underneath with an 8mm socket wrench or Allen key wrench then lifting off filter element assembly with filter access door still attached
  • Unscrew hinged lid over battery compartment using 9/16″ wrench then remove batteries if applicable before accessing crankshaft pulley bolt at back end near flywheel housing opening

Keep your lawn clean and tidy with a high-quality lawn mower bag. But are lawn mower bags universal? Find out the answer in our detailed article on Are Lawn Mower Bags Universal Explain and choose the right bag for your mower.

Do Lawn Mower Solenoids Come With A Warranty?

Most times, the warranty is included with the part. However, this varies from manufacturer to manufacturer. If you are looking for a specific brand of solenoid, it would be best to check directly with them before purchasing it online or at your local hardware store. Most warranties are for 1-3 years and/or 100 miles.

How Much Do They Cost?

How much do they cost?

The price of a solenoid depends on the brand and quality of the solenoid. It can range from $20 to $100 or more, depending on what you’re looking for. The more expensive ones are usually made with higher quality materials that last longer and require less maintenance.

Do They Come In Different Colors?

You can get them in black, blue, red and silver. Different colors have different applications for the solenoid depending on what you are trying to do with your lawnmower. The size of the solenoid is important too because you need to ensure that it fits in your machine properly so that it works correctly.

Can I Use Them On My Lawnmower?

The answer is yes. You can use them on your lawnmower. The size and shape of a solenoid varies based on the application that it will be used for, and there are many different types of solenoids available from various manufacturers.

Solenoids are used primarily to control electric current flow through a circuit. They do this by opening or closing circuits when an electrical charge flows through them; this allows electricity to pass through the circuit, or prevents it from passing through the circuit.

If you’re having trouble finding the right gas cap for your lawn mower, you may be wondering if lawn mower gas caps are universal. Our article on Are Lawn Mower Gas Caps Universal Explained? has got you covered with all the information you need to know about selecting the right gas cap for your machine.

What Is A Solenoid?

A solenoid is an electromagnet with a movable part inside it. When current flows through the electromagnet, it moves the movable part which acts like a valve or switch. 

For example, when you push down on the starter button, your lawnmower’s starter motor powers up and turns over until it starts running. A solenoid can also be used to control the flow of electricity or fluids (liquids). 

A typical water pump has a solenoid that controls whether water flows through its pipes by switching itself on and off automatically with each cycle of its operation.

Can I Use A Solenoid On My Lawnmower?

There are two types of solenoids: AC and DC. Both types can be used on lawnmowers, but only if they are compatible with your particular model.

An AC solenoid is the most common type used in today’s smaller engines. It has a built-in rectifier which converts alternating current (AC) into direct current (DC).

The DC solenoid converts direct current (DC) into alternating current (AC), also known as “rectification.” The input voltage of an AC/DC solenoid is typically 24 volts, although some models require 12 volts or 110 volts to function properly.

How Do You Install A Solenoid On Your Lawnmower?

You’ll need to know what kind of solenoid you have and what kind of lawn mower you have before purchasing a new one. 

You can find out what type of solenoid your current machine has by checking the owner’s manual or looking at the part number. You can also use Google Images to see if anyone else with the same model has posted pictures of their model online.

Once you’ve determined which type is right for your equipment, it’s time to pick out which one will work best for you. There are two kinds: AC and DC. Both types offer different benefits, so be sure that whichever one works best for your needs!

What Are The Benefits Of Using A Solenoid For Your Lawnmower?

The main benefits of using a solenoid for your lawnmower are:

It’s cost effective. You can save money by not having to buy an electric motor and other expensive parts which will be required if you were using an electric motor instead.

It’s durable, long lasting and can be used in a variety of applications. The lifespan of this type of lawn mower solenoid may even exceed 10 years or more depending on how much you use it each day during summer months when it gets hot outside! 

This means less downtime between repairs which could cost thousands over time if done by professionals every time something breaks down on top of labor costs involved with replacement parts overseas as well as shipping fees charged by shippers such as FedEx & UPS who usually charge high amounts due to oversized packages being shipped internationally due their size limitations above 20kgs etc..

Protecting your lawn mower from water damage is crucial to ensuring its longevity and proper functioning. Check out our informative article on Are Lawn Mowers Waterproof Explained? to learn more about waterproofing your machine and safeguarding it from water damage.

Lawn Mowers Are Not All The Same And Neither Are Their Parts.

It’s important to note that lawn mowers are not all the same. They are made for different types of grass, different sizes of lawns, and different heights of grass. These factors influence which kind you’ll need (or want).

Also keep in mind that while there are a few exceptions like riding mowers that have larger engines—the majority of them have smaller engines with fewer horsepower; which means they can’t handle as much weight or power as their larger counterparts.

Common Lawn Mower Parts
Spark Plugs
Air Filters
Fuel Filters
Oil Filters


We hope you have enjoyed this article. If you need to replace a lawn mower solenoid, we can help! 

Just contact us and let us know what type of lawnmower you have, where it is located and how much time you have before the next cutting season begins! We’ll do our best to get your machine running again as soon as possible.

Further Reading

The Benefits of Installing a Universal Solenoid on a Riding Lawn Mower: This article explores the advantages of using a universal solenoid on your riding lawn mower, and how it can improve your mower’s performance.

Are Lawn Mower Solenoids Universal?: LawnAsk provides an in-depth answer to the question of whether lawn mower solenoids are universal or not, and what you need to know before buying one.

Are Lawn Mower Solenoids Universal?: BackyardHubs offers an insightful article on lawn mower solenoids and whether or not they are universal, with tips on choosing the right solenoid for your machine.


What is a lawn mower solenoid?

A lawn mower solenoid is an electrical component that helps to start the engine of a lawn mower by providing power to the starter motor. It is usually mounted on the lawn mower’s engine or on the starter motor itself.

Are all lawn mower solenoids the same size?

No, lawn mower solenoids come in different sizes and shapes depending on the make and model of the lawn mower. It’s important to check the manufacturer’s specifications and compatibility before buying a replacement solenoid.

Are lawn mower solenoids interchangeable?

Not necessarily. While some solenoids may look similar, they may have different specifications and wiring configurations, making them incompatible with certain lawn mower models. Always check the manufacturer’s specifications and compatibility before buying a replacement solenoid.

How do I know if my lawn mower solenoid is bad?

If your lawn mower is not starting, the solenoid could be one of the culprits. Signs of a bad solenoid include a clicking sound when turning the key, a slow or sluggish start, or no response at all. A multimeter can be used to test the solenoid’s resistance and determine if it needs to be replaced.

Can I replace my lawn mower solenoid myself?

Yes, replacing a lawn mower solenoid can be done by yourself with the right tools and knowledge. However, it’s important to follow the manufacturer’s instructions and safety precautions, as well as to ensure that you’re using the right replacement solenoid for your lawn mower model.