Best Lawn Mower Solenoids of 2026

Toby Butcher Avatar
Toby Butcher
Last Updated: 9 Feb 2026

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Lawn mowers are essential tools for maintaining a neat and tidy garden. However, they can become faulty due to a variety of reasons, such as a malfunctioning solenoid. Solenoids are electromagnetic switches that control the flow of electricity to the starter motor. They play a vital role in starting and stopping the engine. If your lawn mower won't start or stalls during operation, it may be due to a faulty solenoid. In such cases, replacing the solenoid is the best course of action. There are various lawn mower solenoids available on the market that can help you get your mower back in top shape.

At a Glance: Our Top Picks

12V Brass Coil Starter Relay for Lawn Mowers Cover #TOP 1
12V Brass Coil Starter Relay for Lawn Mowers
ftb score rating icon 9.9
Fasizi 12V Universal Starter Solenoid for Lawnmowers Cover #TOP 2
Fasizi 12V Universal Starter Solenoid for Lawnmowers
ftb score rating icon 9.8
SPARES2GO 4 Pole Solenoid Starter Switch for Lawnmowers Cover #TOP 3
SPARES2GO 4 Pole Solenoid Starter Switch for Lawnmowers
ftb score rating icon 9.6

Top 6 Lawn Mower Solenoids

#TOP 1

12V Brass Coil Starter Relay for Lawn Mowers

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12V Brass Coil Starter Relay for Lawn Mowers Cover
12V Brass Coil Engine Starter Solenoid Replacement for Lawn Mower, ATVs, Snowmobiles

The Walfront Starter Relay is an excellent choice for vehicles requiring a reliable high power relay. Its brass coil and silver plated contacts ensure good conductivity, allowing for a quick motor start and stable performance. With a high starting power of 4.8W, this relay reduces the startup switch current, promoting safe and dependable operation. Ideal for various applications, including lawn mowers and ATVs, its compact structure makes installation straightforward and space-efficient, offering you great convenience.

What We Like
High conductivity and performance
Reduces startup switch current
Versatile for multiple vehicles
Compact and easy to install
#TOP 2

Fasizi 12V Universal Starter Solenoid for Lawnmowers

AUA2996
Fasizi 12V Universal Starter Solenoid for Lawnmowers Cover
Fasizi 12V 33-331 Starter Solenoid Universal Starter Solenoid Lawn Mower Magnetic Switch Part use for Accessories

The Fasizi Starter Solenoid is a reliable replacement part designed for 12-volt systems, making it ideal for lawnmowers and other engineering machinery. Its internal ground with a screw terminal ensures a secure connection, giving you peace of mind during operation. Made from durable metal, it offers excellent wear and corrosion resistance, ensuring longevity. With good hardness and high strength, this solenoid can withstand demanding conditions, making it a perfect choice for your machinery needs.

What We Like
Durable metal construction
Corrosion and wear-resistant
Secure internal ground connection
High strength for demanding use
#TOP 3

SPARES2GO 4 Pole Solenoid Starter Switch for Lawnmowers

04-SGY-982
Black / Silver
SPARES2GO 4 Pole Solenoid Starter Switch for Lawnmowers Cover
SPARES2GO Solenoid Starter Switch 4 Pole Relay for Countax Fits Westwood Lawnmower Ride on Mower Tractor

The SPARES2GO Solenoid Starter Switch is a premium quality replacement part designed for use with Countax, Ariens, and Westwood ride-on lawnmowers and tractors. It features a four 1/4" pole terminal base and operates at 12 volts, ensuring reliable starting for your machinery. This solenoid is compatible with various models, providing you with ease of installation. Its specification ensures that you can confidently select the right part for your needs, enhancing the efficiency of your lawn care equipment.

What We Like
Compatible with multiple lawnmower brands
Reliable 12 Volt operation
Easy installation process
High-quality replacement part
Guideline measurements for selection
#TOP 4

Ruspela 12V 100A Starter Solenoid Relay

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popular
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Ruspela 12V 100A Starter Solenoid Relay Cover
Starter Solenoid 12V 100A 4 Terminals 532192507 Starter Solenoid Relay Replacement Lawn Tractor Starter Solenoid for Husqvarna 762-1261-211-51 762-1261-211-50

The Ruspela Starter Solenoid is designed as a replacement for various lawn tractors including Husqvarna, Jonsered, Poulan, and Craftsman. It features a replaceable OEM number for easy reference, ensuring compatibility. This solenoid effectively addresses starter circuit faults, helping to eliminate issues such as poor connections and open circuits. With its professional production, you can expect stable performance and enhanced efficiency, making your lawn tractor operational once again.

What We Like
Compatible with multiple brands
Addresses starter circuit faults
Stable performance
Durable materials
#TOP 5

Oregon 33-431 Universal Lawn Mower Solenoids

33-431
multi
Oregon 33-431 Universal Lawn Mower Solenoids Cover
Oregon 33-431 4 Post Universal Lawn Mower Solenoids

The Oregon 33-431 Solenoids feature a 4 post design with a dual mounting bracket, ensuring easy installation on your lawn mower. The terminal post and sleeve accommodate both 1/4" and 5/16" terminal ends, giving you versatility in connection options. Additionally, the external ground comes with spade converters, allowing for secure grounding. With a 15% duty cycle and a robust 200 AMP capacity, these solenoids provide reliable performance, ensuring your mower operates smoothly and efficiently.

What We Like
Easy installation with dual bracket
Versatile terminal connections
Secure external grounding
Reliable performance
High AMP capacity
#TOP 6

The Lord of the Tools Lawn Mower Starter Solenoid

The Lord of the Tools Lawn Mower Starter Solenoid Cover
The Lord of the Tools DC12V Lawn Mower Starter Solenoid GY22476 AUC15346 Compatible with John Deere S2046 S2048 SST15 SST16 LT150 LT155 LT160 Z345M Z345R

The Lord of the Tools Solenoid is a reliable replacement for your lawn mower's starting solenoid valve, identified by part numbers GY22476, AUC15346, and AM138068. It ensures compatibility with a wide range of John Deere tractors, making it easy for you to find the right fit for your machine. By carefully checking the pictures and part numbers, you can avoid purchasing the wrong item. This solenoid enhances the starting process of your lawn mower, providing you with a hassle-free mowing experience.

What We Like
Wide compatibility with John Deere
Easy identification of part numbers
Reliable starting mechanism
Enhances mower performance
Buying Guide Image

Frequently Asked Questions (FAQs)

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

Look for the large terminal posts on the solenoid where the thick red wires connect to the solenoid. Touch the metal shaft of a screwdriver to both of the large terminals at the same time. If the engine turns over and starts, the solenoid is bad and should be replaced.

2. Are lawn mower solenoids interchangeable?

All riding lawn mowers run on the same type of 12-volt circuit that an automobile runs on, and some of the parts are nearly interchangeable, such as the solenoid and starter. So exactly like an automobile, when the solenoid wears out or goes bad, it will not send any power to the starter.

Editor's Notes

During our lawn mower solenoid research, we found 306 lawn mower solenoid products and shortlisted 6 quality products. We collected and analyzed 4,356 customer reviews through our big data system to write the lawn mower solenoids list. We found that most customers choose lawn mower solenoids with an average price of £20.00.

The lawn mower solenoids are available for purchase. We have researched hundreds of brands and picked the top brands of lawn mower solenoids, including Walfront, Fasizi, Spares2go, Ruspela, Oregon.

Written by
Toby Butcher Avatar

Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.