**We’re excited to be able to offer trade professionals like you substantial volume-based discounts. Our PRO pricing levels are based on your anticipated annual parts spend with us. If your actual monthly spending trends lower than anticipated, your discount may change.

Appliance Parts, Lawn Mower Parts, Heating & Cooling Parts. 365 day returns.

Sign up for your PRO account

Create your account for exclusive discounts and benefits, like:

Your One-Stop

Shop

Join Repair Clinic Pro to unlock technician pricing, same-day shipping, dedicated support, and exclusive benefits tailored for repair professionals.

PRO users get exclusive discounts and benefits, like:

This account is not eligible, please contact your customer service representative for any questions.

Unlock technician pricing and exclusive Pro benefits at Repair Clinic. Join free today.

Repair Clinic Pro

Repair Clinic Pro | Discounts & Benefits for Technicians

Your discounted pricing and other Pro benefits are now available.

Thank You for joining Repair Clinic Pro!

Return parts & products within 365 days of placing your order.

Adhesives & Sealants Parts

Appliance Adhesive & Sealant Parts

Air Filters

Air Filters for Home

Appliance Cleaners

Appliance Cleaners for Sale

Dishrack Parts

Dishrack Replacement Parts

Dryer Vents

Dryer Venting Parts

Equipment Covers

OPE, HVAC & Appliance Part Covers

Fuel Treatments

Fuel System Treatments

Hardware & Fasteners

Hardware and Fasteners Parts

Kitchen Appliance Accessories

Kitchen Accessories Parts

Washer & Dryer Accessories

Dryer and Washer Accessories

Light Bulb Parts

Light Bulb Fixture Parts

Oil & Lubricants

Oil and Lubricant Parts

Paint & Supplies

Touch Up Paint & Supplies

Power Cords Parts

Power Cord Repair Parts

Safety Equipment Parts

Safety Equipment Spare Parts

Testing Equipment Parts

Testing Appliance, OPE & HVAC Parts

Specialty Tools Parts

Specialty Tool Parts for Sale

Vacuum Attachments

Vacuum Attachment Parts

Water Filters & System Parts

Water Filter System Parts

Water Treatment Parts

Water Treatment System Parts

Wire & Connector Parts

OPE, HVAC & Appliance Wire & Connector Parts

Lawn Care Supplies

Yard Care Supplies

Heating & Cooling Supplies

HVAC Supplies

CHANNELLOCK Tools Parts

CHANNELLOCK Replacement Tools

Gas Cans & Nozzles

Nozzles & Gas Cans for Sale

Maintenance Repair Kits

Maintenance Appliance Repair Kits

OPE cleaners & Filters Parts

Outdoor Power Equipment Cleaners & Filters

Power Tools Parts

Power Tool Replacement Parts

Appliances

Refrigerator

Dryer

Range/Stove/Oven

Washing Machine

Dishwasher

Washer/Dryer Combo

Microwave

Freezer

Oven/Microwave Combo

Trash Compactor

Ice Machine

Range Vent Hood

Vacuum Cleaner

Garbage Disposer

Dehumidifier

Hot Water Dispenser

Heating & Cooling

Furnace

Packaged Unit/RTU

Heat Pump

Central Air Conditioner

Air Conditioner

Air Handler

Humidifier

Get genuine OEM Stihl String Trimmer Parts to keep your equipment running. Match the right part to your model, then order from one of the largest inventories of Stihl String Trimmer Parts anywhere, with same-day shipping, a price match guarantee, expert repair help, and 365-day returns.

<h2>Stihl String Trimmer Carburetors, Spark Plugs & Fuel System Parts</h2><p>Stihl string trimmers are built to last, but hard starts and rough running usually point to one culprit: the carburetor. Ethanol in modern fuel gums up the float needle, jet, and internal passages — especially if your trimmer sat idle for weeks. A carburetor kit often brings it back to life without the full replacement cost. If the trimmer cranks but won't stay running, check the spark plug next; a fouled Champion RJ19LM is the second most common fix.</p><p>Beyond the engine, your Stihl FS series trimmer depends on a reliable fuel delivery system and a responsive trimmer head. Cracked fuel lines, stuck primer bulbs, and jammed spool heads are quick repairs that keep you cutting through the season. Use your Stihl model number (FS45, FS55, FS90, FS111, or FS131) to find OEM parts that fit exactly.</p><ul><li><strong>Carburetor and rebuild kits</strong>: hard start, runs rich or lean, won't idle</li><li><strong>Spark plugs</strong>: fouled plug, weak spark, won't fire</li><li><strong>Fuel lines and primer bulbs</strong>: cracked lines, primer won't draw fuel</li><li><strong>Trimmer heads and spools</strong>: line won't feed, spool jammed, head cracked</li><li><strong>Recoil starters</strong>: pull cord stuck, won't recoil</li></ul>

<h2>Stihl String Trimmer Parts: Answers to Common Questions</h2><h3>Why won't my Stihl FS trimmer start after sitting all winter?</h3><p>Ethanol fuel left in the carburetor gums up the jets and float needle over weeks of storage. Start with a carburetor rebuild kit — it includes new gaskets, seals, and a clean jet. If that doesn't work, a full carburetor replacement is the next step. Always drain the fuel tank and run the trimmer dry before long storage, and use fuel stabilizer in the off-season.</p><h3>What's the difference between Stihl trimmer head sizes, and how do I load the right line?</h3><p>Stihl FS series trimmers use different bump heads depending on the model — FS45 and FS55 use smaller heads than FS90 and FS131. Each head has a line diameter spec:.065" to.095" depending on the head type. Load the correct diameter to avoid jamming and poor feeding. OEM Stihl trimmer heads maintain the right spring tension and feed mechanism — aftermarket spools often cause line-feeding headaches.</p><h3>My Stihl trimmer spark plug keeps fouling. Should I replace the plug or the carburetor?</h3><p>A fouled spark plug (black, wet, or carbon-coated) usually means the carburetor is running too rich — fuel isn't burning completely. Replace the plug first with a fresh Champion RJ19LM, and if fouling returns within a few hours of run time, the carburetor is the real issue. Rich running also wastes fuel and reduces power, so a carburetor rebuild kit is the right next step.</p><h3>How do I find my exact Stihl string trimmer model number for ordering parts?</h3><p>The model number is stamped or printed on the trimmer shaft or near the fuel cap — look for "FS" followed by two or three digits (FS45, FS55, FS90, FS111, FS131). Enter that model number into the Repair Clinic lookup tool and you'll see every compatible part for your trimmer, from carburetors to grinding heads to fuel lines. Stihl parts are model-specific, so the correct number ensures you get the right fit first time.</p>

<h2>Order Stihl String Trimmer Parts Online</h2>
<p>Looking for genuine Stihl String Trimmer parts? Our online store provides a full range of high-quality replacement parts to keep your equipment running smoothly. Whether you need replacement weed eater parts or specific parts for string trimmer repair, we've got you covered. Enjoy the convenience of same-day shipping, ensuring that your parts arrive promptly and minimize downtime. Utilize our model number lookup tool to easily find compatible Stihl parts with a Price Match Guarantee. Plus, benefit from our No-Hassle 365-Day Returns policy, allowing you to return any uninstalled part within a year. If your string trimmer won't start or runs rough, consider replacing the spark plug, air filter, or cleaning the carburetor. For additional repair guidance, visit our <a href="https://www.repairclinic.com/RepairHelp/String-Trimmer-Repair-Help">String Trimmer Repair Help</a> page. For a curated selection of Stihl parts, browse our <a href="https://www.repairclinic.com/Shop-For-Parts/a26b354/Stihl-String-Trimmer-Parts">Stihl String Trimmer Parts</a> page for all your repair needs.</p>

<h2>Stihl String Trimmer Model Number: Where to Look</h2>
<p>Stihl prints the model number on a label or sticker attached to the shaft or engine housing of most string trimmers. Check near the fuel cap as well, and look for an "FS" designation followed by two or three digits, such as FS45, FS55, or FS111. Once you have the complete number, type it into our model number lookup and the catalog narrows to parts made for your unit. This filters the full Stihl string trimmer parts selection, including engine, fuel system, starter, handle, and trimmer head parts, to your exact model. You can then confirm compatibility before ordering and avoid sorting through parts that do not fit.</p>

<h2>Get Your Stihl String Trimmer Working Again with Online Repair Help</h2>
<p>Repair Clinic's online repair resources give you a clear path to fix your Stihl String Trimmer without a service call. Symptom articles help identify the likely cause, part testing videos confirm the failed component, and step-by-step repair guides walk you through the installation with photos and video. Look up your model number to match the correct OEM part on the first try.</p>

Related Articles: Weed Eater

Quality Stihl String Trimmer Replacement Parts From Repair Clinic

<p>Like all of the company’s power equipment, Stihl string trimmers are designed for reliability and built for the long haul. But after repeated use, even the best power equipment will require maintenance to live up to its full potential. That’s where Repair Clinic trims away the competition; our inventory of small engine and equipment parts makes it easy to maintain or repair your Stihl string trimmer. Seasonal engine tune-ups are never a problem with quality <a href="/Shop-For-Parts/a26b354c121i760/New/Stihl-String-Trimmer-Spark-Plug-Parts"><span>spark plugs</span></a>, <a href="/Shop-For-Parts/a26b354c43i473/New/Stihl-String-Trimmer-Filter-Air-Filter-Parts"><span>air filters</span></a>, <a href="/Shop-For-Parts/a26b354c43i752/New/Stihl-String-Trimmer-Filter-Fuel-Filter-Parts"><span>fuel filters</span></a>, and <a href="/Shop-For-Parts/a26b354c102i795/New/Stihl-String-Trimmer-Carburetor-Carburetor-Repair-Kit-Parts"><span>carburetor repair kits</span></a> from manufacturers like Zama and Walbro. Need a new recoil starter, trimmer head, or bump knob? Repair Clinic can ship the right part for your string trimmer fast. Enter the full model number of your Stihl string trimmer into our website’s search bar to find a full list of matching parts. You can use the navigation filters on the left side of the page to refine the search down to just the part or parts you’re looking for. If you’re having difficulty locating the exact part you want, please contact our Customer Service Team at 1-800-269-2609; they will be happy to help.</p>
<p>More than just a parts dealer, Repair Clinic maintains an extensive collection of “how-to” materials. Our thousands of videos, articles, diagrams, and equipment schematics were created to assist you in diagnosing any problem you may be experiencing with your string trimmer, as well as all other outdoor power equipment, appliances, or heating and cooling products. Once you’ve identified the defective part, we’ll show you how to replace it. From novices to professionals, Repair Clinic is your do-it-yourself partner.</p>


Stihl String Trimmer Parts by Model Number - Repair Clinic

String Trimmer Stihl Parts by Model Numbers

Talk With Us

Talk With Us