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Champion Spark Plug (RC12YC). The spark plug ignites the fuel and air mixture in the cylinder to power the engine. If the spark plug is burnt, fouled or damaged the engine may not start or may run rough.

Small engine Champion spark plug (RJ19LM). If the engine does not start, the spark plug may be defective. The spark plug should be replaced periodically during regular maintenance.

Briggs & Stratton Spark Plug (RJ19LM). If the engine does not start or runs poorly then the spark plug may be defective and will need replacement.

NGK Spark Plug (BPM8Y). The spark plug ignites the fuel and air mixture in the engine's cylinder to power the engine. If the spark plug is has fouled (if the tip of the spark plug is burnt or damaged), the engine may not start or may run rough.

Champion spark plug (RCJ6Y). The spark plug ignites the fuel and air mixture in the engine's cylinder to power the engine. If the spark plug is has fouled (if the tip of the spark plug is burnt or damaged), the engine may not start or may run rough.

Champion Spark Plug (RCJ8Y). The spark plug ignites the fuel and air mixture in the cylinder to power the engine. If the spark plug is burnt, fouled or damaged the engine may not start or may run rough.

Champion Spark Plug (RCJ7Y). The spark plug ignites the fuel and air mixture in the engine's cylinder to power the engine. If the spark plug is has fouled (if the tip of the spark plug is burnt or damaged), the engine may not start or may run rough.

Spark plug

NGK Spark Plug (BPM7Y)

Plug cover

Plug-spark f5rtc

NGK spark plug (CMR6A)

NGK Spark Plug (CMR7H)

Champion Spark Plug (RDZ19H)

Champion Spark Plug (DJ7Y)
Your gasoline-powered Craftsman lawn edger's spark plug is essential to its landscaping performance. If your Craftsman lawn edger won't start, it may be because the spark plug is not correctly firing. If the spark plug malfunctions, the gas-powered Craftsman edger can experience problems and, eventually, it will not start. Look for damage and buildup on the spark plug. If a spark plug is damaged, it may be time to order a replacement spark plug from Repair Clinic. More information on inspecting and changing your Craftsman lawn edger's spark plug may be found in our Craftsman lawn edger Repair Help and Troubleshooting section. Our Craftsman lawn edger repair help section includes step-by-step instructions and videos for replacing your Craftsman lawn edger's spark plug.
All Craftsman lawn edger parts are in-stock and ready to ship right to you. As a result, Repair Clinic is always nearby and ready to deliver the lawn equipment part you require as soon as possible! Repair Clinic has an extensive online catalog of replacement parts for your gas-powered Craftsman lawn edger including replacement belts for your Craftsman lawn edger and Craftsman lawn edger carburetor. All of Repair Clinic's Craftsman lawn edger parts are in-stock, designed to fit compatible models, and are genuine OEM parts. Simply enter the model number of your Craftsman lawn edger into the search field above to find a compatible spark plug.
The gasoline lines on a Craftsman landscaping edger can become clogged, causing the engine to lose power. To avoid this problem, change your spark plug as part of your regular edger maintenance. A decent rule of thumb is to replace the spark plugs in Craftsman lawn edgers at the start of the landscaping season or after 30 full hours of use. It is best to replace the spark plug before the engine begins to fail to start.
Craftsman appliances and equipment have specific repair considerations. Below are the most important questions customers ask about Craftsman parts.
Wear from age and heat is the #1 cause. Electrical surges, contamination, and mechanical stress also shorten edger spark plug life. Regular maintenance and using genuine OEM Craftsman parts extend service intervals significantly.
Look for a data plate or label on your Craftsman unit — location varies by product type but is typically on the door frame, back panel, or inside the access panel. Enter the full model number in our search to match the exact OEM edger spark plug for your unit.
Some aftermarket parts work, but genuine OEM Craftsman parts support proper fit and performance and guarantee exact fit. Aftermarket alternatives can vary in voltage, dimensions, and durability — OEM is the safer choice for critical parts.


Ordering Craftsman parts online is simple and helps you find genuine OEM parts. With same-day shipping on most in-stock items, you'll have your replacement part fast, minimizing downtime. Our model/part number lookup finds the exact OEM part for your unit, and every order is backed by our 365-day return policy and price-match guarantee. If your Craftsman edger spark plug is failing — showing symptoms like reduced performance, unusual noise, or complete non-operation — replacement is typically the fastest fix. Browse our full library of Craftsman repair resources for troubleshooting guides and installation videos.
On Craftsman edgers, look for the model number on a label attached to the frame near the blade deck or on the engine housing. Clean off grass and dirt first, then copy the complete number, including periods or other punctuation. Enter it in the model number search to pull up the parts matched to your unit. The model number identifies the entire edger, so it narrows the full catalog to compatible parts, not just replacement spark plugs. Matching the number before you order helps you avoid comparing parts from similar-looking edgers and gets you to the correct fit faster. It is the quickest way to be sure the part fits before you order.

Regular spark plug replacement keeps your Craftsman starting cleanly and running at full power. Repair Clinic stocks OEM spark plugs for a wide range of engines, along with installation videos and gap-setting guides. Use the model number lookup to confirm the exact spark plug specification for your engine, and keep a spare on hand for the next tune-up.

Learn the correct way to replace your string trimmer line for proper function. 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.