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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 primer bulb. The primer bulb draws additional fuel into the carburetor to help start the engine.
Kawasaki pump-priming bulb. Fits select Kawasaki FJ180V engines.
Tecumseh carburetor repair kit. If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run poorly.
Honda air cleaner (or air filter). If the air filter is clogged or dirty, the engine may not start or may run rough.
Briggs & Stratton Original Equipment 491588S Air Filter. Briggs & Stratton genuine parts are specially designed to exact OEM standards, manufactured and tested to help deliver optimum performance in Briggs & Stratton engines.
Briggs & Stratton Original Equipment 498260 Carburetor Overhaul Kit. If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run poorly.
Carburetor gasket (Choke Side)
NGK spark plug. 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.
Fuel bowl gasket
Primer bulb. The primer bulb draws fuel into the carburetor to make the engine easier to start.
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.
Element, air cleaner
Tecumseh ignition coil (also called a lamination). The ignition coil sends voltage to the spark plug while the engine is running. If the ignition coil is defective, the engine may not start.
Small engine recoil starter assembly. This item includes the pulley and spring. The recoil starter engages the drive cup on the flywheel to start the engine when pulled.
Small Engine Parts for Outdoor Power Equipment
Small engine failures -- hard starts, rough running, and complete shutdowns -- almost always trace back to one of a handful of worn parts. Whether your Briggs & Stratton, Kohler, Kawasaki, or Tecumseh engine powers a lawn mower, string trimmer, chainsaw, or generator, the fix is usually simple and inexpensive when you have the right OEM part.
The most common culprits are carburetors clogged by ethanol-damaged fuel, worn spark plugs, kinked fuel lines, and cracked primer bulbs. Many of these parts cost under $30, and replacing them yourself takes 15 minutes with basic hand tools. Always reference your engine's model number (stamped on the engine block itself, not the equipment model) to ensure exact fit -- small engine parts vary significantly across manufacturers and displacement sizes.
- Carburetor won't start, runs rough, or stalls: Ethanol in fuel corrodes the float needle and jets. Carburetor rebuild kits or full carburetors are the fix.
- Spark plug fouled or black: Wrong heat range, bad fuel, or oil fouling. Replace with OEM-spec Champion or NGK plug.
- Primer bulb cracked or won't draw fuel: The bulb primes the fuel line before starting. Replacement primer bulbs are under $5.
- Fuel line kinked, cracked, or stiff: Old fuel lines harden and crack. Replacement fuel line kits restore fuel flow.
- Recoil starter stuck or won't recoil: Pull cord jammed or spring broken inside. Recoil starter assemblies bring your engine back to life.
Popular Small Engine Models
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Small Engine Parts FAQ
What's the difference between finding my engine model number and my equipment model number?
Your equipment (mower, trimmer, generator) has its own model number, but the small engine inside has a separate one stamped directly on the engine block or shroud. Small engine parts are matched to the engine model number, not the equipment brand. A Craftsman mower might have a Briggs & Stratton engine, for example. Always look on the engine itself -- you'll see "Briggs & Stratton" or the manufacturer name plus a model and spec number. That's what you need for parts.
Why is my small engine so hard to start after sitting all winter?
Ethanol-blended fuel breaks down and varnishes carburetors. The tiny fuel passages in the carb get clogged, and the engine won't start. The best fix is a carburetor rebuild kit (jets, float needle, gaskets) for $15 -- 30, which takes 30 minutes to install. For next season, drain fuel from your equipment before storage or add a fuel stabilizer to keep the carb clean.
Can I use an aftermarket spark plug instead of the OEM brand?
Aftermarket plugs often work, but OEM spark plugs (Champion, NGK, Autolite) are engineered for your engine's exact heat range and gap. Wrong heat range causes fouling or engine knock. For reliability, especially on newer engines, stick with the OEM spec listed in your manual.
Why do I keep buying primer bulbs?
Primer bulbs crack from UV exposure and age. They're cheap (under $5) and wear out faster than most parts. Keep a spare in your equipment bag so you're never stranded with a hard-starting engine. Replace immediately when you feel the bulb harden or see cracks.
Common Small Engine Parts Explained
At Repair Clinic, we offer an large inventory of small engine replacement parts and kits for DIY repairs, ensuring you have access to the parts you need. However, it's key to understand the functions of these parts before performing any maintenance on your equipment. Below, we've compiled a list of commonly purchased small engine repair parts available in our inventory, along with explanations of how they work. This knowledge will empower you to make informed decisions and effectively maintain your equipment.
- Augers: A small engine auger is a rotating drilling or digging device used in equipment like snow blowers and post-hole diggers. These small engine supplies feature a helical or spiral-shaped blade or screw that helps move materials, such as snow, soil or debris, from one place to another.
- Chassis: The chassis is the framework or structure that is the foundation for a machine or equipment. In the context of small engines, the chassis refers to the main frame of the device that houses and supports various engine parts. These small engine repair parts provide structural integrity and stability to the equipment, protecting the engine and other vital parts from damage and acting as a base for mounting other elements like the wheels, handlebars or control panels.
- Circuit Board: A circuit board, also known as a PCB (Printed Circuit Board), is a crucial electronic component that connects and supports various electronic elements in electrical devices. In small engines and other types of equipment, circuit boards are commonly found in electronic ignition systems, control panels or engine management systems. These small engine replacement parts have copper tracks or trace that route electrical signals and power between different parts, ensuring proper communication and functioning of the electronic systems.
- Thermistor: A thermistor is a temperature-sensitive resistor commonly used in electronic control systems. In small engines, a thermistor can be found in the cooling or temperature regulation system. It measures the engine's temperature and provides data to the engine control unit or circuit board. Based on this information, the control system can adjust fuel mixture, ignition timing or cooling fan operation to maintain optimal engine performance and prevent overheating.
Useful Installation Resources
Once you've acquired your small engine replacement parts, make the most of our comprehensive small engine content library. Access a wealth of free resources, including schematics, diagrams, informative articles and instructional "how-to" videos. Our content covers various aspects, from understanding how your small engine operates to troubleshooting common symptoms you may encounter. By utilizing Repair Clinic's extensive information, you'll gain expert-level knowledge in no time, empowering you to tackle maintenance and repairs with confidence.
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Shop Small Engine Parts at Repair Clinic Today
When your small engine requires some care, trust Repair Clinic for your small engine supplies. Our user-friendly website and comprehensive resources cater to DIY enthusiasts and homeowners, simplifying the identification and successful installation of needed small engine parts. We firmly believe that everyone should have the opportunity to save time and money by tackling appliance repairs themselves, and our vast inventory and dependable support make this possible. Our unbeatable selection of genuine quality small engine repair parts, combined with expert guidance, ensures your outdoor power equipment will be back on track and running smoothly.
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Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.
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