Find the right part faster
Multiple models matched. Select your model to confirm fit.

Piston ring
Ensure your Lawn Boy String Trimmer operates at peak performance with genuine OEM piston ring replacements from Repair Clinic. Our piston rings are meticulously crafted to provide a perfect fit, maintaining the manufacturer's warranty and enhancing the longevity of your equipment. If your string trimmer is experiencing issues like loss of compression or engine misfires, it might be time for a piston ring replacement. Repair Clinic simplifies the repair process with detailed guides and a vast inventory of replacement parts. For related components, explore our selection of Husqvarna String Trimmer Parts to ensure seamless repairs. Trust Repair Clinic to provide the high-quality parts you need to restore your Lawn Boy String Trimmer's functionality.
Discover essential information about replacing piston rings in Lawn Boy string trimmers to ensure optimal performance and longevity.
Symptoms of a worn-out piston ring include reduced power output, excessive smoke, and difficulty starting. Conduct a compression test to confirm the need for replacement.
First, disassemble the trimmer to access the engine. Remove the cylinder head and piston. Replace the worn piston ring with a new one, then reassemble the trimmer carefully.
You can find genuine Lawn Boy string trimmer piston rings at lawn equipment parts online at Repair Clinic. We offer a Price Match Guarantee and 365-day return policy for your convenience.
Repair Clinic provides a vast selection of Ryobi String Trimmer Parts for both homeowners and professional technicians, ensuring quick and reliable solutions for all your outdoor equipment needs.


Ensure your Lawn Boy string trimmer runs smoothly with genuine piston ring replacements available online. Our easy-to-use model number lookup guarantees you'll find the exact part you need swiftly. Benefit from same-day shipping to get your trimmer back in action quickly. Our Price Match Guarantee ensures you're getting the best deal on these essential weed eater parts. Additionally, our No-Hassle 365-Day Returns policy allows you to return any uninstalled part within a year, making your purchase worry-free. Common issues such as your string trimmer not starting could be due to a faulty spark plug or dirty air filter, which can often be resolved by replacing the necessary components. For more troubleshooting tips, visit our String Trimmer Repair Help page. To explore more Lawn Boy parts, check out our Toro String Trimmer Parts page for compatible options.
When replacing the piston ring in your string trimmer, it's essential to know your model number. This number is typically found on a label or sticker on the housing or near the engine. Having this information readily available allows for accurate ordering of the necessary replacement piston ring or other string trimmer repair parts. By entering the model number on our website, you can swiftly locate the correct part and ensure a proper fit. With our easy online ordering system, you'll have your string trimmer back in top condition in no time. For related parts like trimmer heads, visit our Ryobi String Trimmer Trimmer Head Parts page.

At Repair Clinic, we are dedicated to helping you find the right String Trimmer parts, including piston rings, for your Lawn Boy model. Our customer service team is available seven days a week to ensure you get the parts you need. Utilize our live chat for quick support and take advantage of our easy model/part number lookup to find genuine OEM replacement parts. Whether you're dealing with a String Trimmer that won't start or a trimmer head that won't spin, our expert troubleshooting assistance is here to guide you. Remember, we offer a Price Match Guarantee and a No-Hassle 365-Day Returns policy, so you can shop with confidence. Visit Repair Clinic for all your String Trimmer repair needs and explore our comprehensive repair guides and videos for DIY enthusiasts.

Learn the correct way to replace your string trimmer line for optimal performance. Follow these simple steps to ensure smooth trimming and prevent frustrating tangles or breakage.

Is your string trimmer head not spinning? Common causes include a worn drive shaft, faulty clutch, broken trimmer head, or tangled line. Diagnose and fix the issue with these expert tips.

A faulty spark plug can cause engine misfires, hard starts, rough idling, or power loss. Learn how to recognize bad spark plug symptoms and when to replace them for smooth operation.