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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.

Small engine NGK spark plug (BPR6ES). If the engine does not start, the spark plug may be defective. The spark plug should be replaced periodically during regular maintenance.

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.

Spark plug boot

Briggs & Stratton Spark Plug (RC14YC)

Spark plug boot

NGK Spark Plug (BPR4HS)

Toro Spark Plug
Wheel Horse generators rely on the spark plug to start. If your Wheel Horse generator won't start, then it could be that the spark plug is not firing properly due to damage. Therefore, it is recommended to check for buildup and damage on generator spark plugs as part of routine maintenance. If a spark plug on your Wheel Horse generator is no longer in good condition, it is time to replace it. For more information on replacing your Wheel Horse generator's spark plug, please see our Wheel Horse generator Repair Help and Troubleshooting section. Our Wheel Horse generator repair section includes step-by-step instructions and videos for troubleshooting problems with your Wheel Horse generator, inspecting spark plugs, and replacing Wheel Horse generator spark plugs.
Repair Clinic has a huge online inventory of replacement generator parts in stock for Wheel Horse generators. These are all genuine OEM parts that are guaranteed to fit. To find a matching spark plug for your Wheel Horse generator, simply enter its model number in the search field at the top of this page. Are you looking for a Wheel Horse generator spark plug supplier nearby? All spark plugs and Wheel Horse generator parts are in-stock and available to ship the same day, right to your door. As a result, Repair Clinic is always close by and ready to deliver the lawn equipment part you need as quickly as possible!
We recommend examining your Wheel Horse generator's spark plug for damage as part of routine maintenance. A good rule-of-thumb is to change Wheel Horse generator spark plugs every 100 hours of operation. If the spark plug is damaged, it is recommended to replace it as soon as possible. Make sure to check the spark plug on your Wheel Horse generator as part of routine maintenance and replace it if there is damage or buildup.