Best Lawn Mower Solenoids of 2025

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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
Top 10 Lawn Mower Solenoids
KIMISS Universal 12V Starter Solenoid
The KIMISS Starter Solenoid is a high-quality accessory designed for reliable performance. It is suitable for multiple models, ensuring compatibility with various construction machinery vehicles. Made from durable metal, this solenoid offers wear and corrosion resistance, making it ideal for tough working environments. You can count on it to provide stable and reliable starting effects, enhancing the efficiency of your machinery, whether it’s an excavator or a bulldozer.
The Lord of the Tools Lawn Mower Starter Solenoid
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.
SPARES2GO 4 Pole Solenoid Starter Switch for Lawnmowers
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.
Fasizi 12V Universal Starter Solenoid for Lawnmowers
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.
Oregon 33-431 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.
Riuulity Starter Relay Solenoid for Lawn Tractors
The Riuulity Starter Solenoid is a highly compatible accessory for MTD 725-04439B and John Deere AM138068 tractors. Its high performance ensures reliable starting and efficient operation, which means you can maximise productivity and reduce downtime. The robust design, marked with DC12V, delivers maximum power to trigger the starter motor effectively, allowing for quick startups. Additionally, its durability ensures it withstands prolonged use and harsh weather, making it a smart investment for your lawn tractor.
12V Brass Coil Starter Relay for Lawn Mowers
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.
HouYeen Starter Solenoid for MTD Tractors
The HouYeen Starter Solenoid is designed specifically for MTD lawn tractors, including models 725-1426, 925-1426, 18817, 75671, and 110832x. This product ensures reliable starting of your lawn tractor, providing convenience during your lawn maintenance tasks. By having a dedicated starter magnet, it enhances the efficiency of your equipment, allowing you to focus on your gardening without interruptions. With its compatibility across various models, this solenoid makes it easy for you to replace a worn-out part without hassle.
Ruspela 12V 100A Starter Solenoid Relay
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.
Socobeta 435-036 12V Starter Solenoid Relay
The Socobeta 435-036 Relay is designed to enhance the performance of your lawn mower and other vehicles. Its brass coil and silver contact ensure a reliable start while consuming minimal current. This means you can enjoy stable operation without worrying about power issues. With a coil power of 4.8W, it is versatile enough for various applications, including ATVs and garden tractors. Plus, its lightweight and compact design allows for quick and easy installation, saving you time and effort.
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.
During our lawn mower solenoid research, we found 306 lawn mower solenoid products and shortlisted 10 quality products. We collected and analyzed 4,724 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 £13.33.
The lawn mower solenoids are available for purchase. We have researched hundreds of brands and picked the top brands of lawn mower solenoids, including KIMISS, The Lord of the Tools, Spares2go, Fasizi, Oregon. The seller of top 1 product has received honest feedback from 507 consumers with an average rating of 4.8.

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.