What size spark plug does a lawn mower use?
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Accordingly, are all lawn mower spark plugs the same?
Yes there are different plugs for different engines. Usually you need the engine model on your mower, and take in the old spark plug to the hardware store. Usually near the spark plugs at the store there is a booklet showing your old model of spark plug and what model the brand in front of you is compatible with.
Likewise, are lawn mower spark plugs universal? The spark plugs in both types of engine work on the same basic principle. Some automotive and lawn mower spark plugs may be interchangeable, but many others are not because of physical differences.
Consequently, how do I know which spark plug for my lawn mower?
Gas-powered lawn mowers work with a spark plug that ignites the engine. Depending on your brand and model, the spark plug may be located along the back of the engine or on the front, but is easy to identify by the wire clipped onto its tip.
What size spark plug does a Craftsman lawn mower take?
Replacement Plug The Craftsman 4.5hp mower uses either a Champion model RJ19LM or J19LM spark plug, or equivalent, with the gap set at . 030 inch.