What spark plug does a Craftsman lawn mower use?
The Craftsman 4.5hp mower uses either a Champion model RJ19LM or J19LM spark plug, or equivalent, with the gap set at .
Similarly one may ask, how do I know what spark plug I need for my lawn mower?
Spark plugs are typically located on the back or side of a lawn mower engine. Look for a short wire that's about 1/4-in. -thick leading to the top of a short, cylindrical protrusion from the engine. If you're not sure where the spark plug is, consult your owner's manual.
Keeping this in view, will any spark plug work in a lawn mower?
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.
Are lawn mower spark plugs universal?
Spark plugs aren't universal; you have to make sure that you buy one that fits your mower. ... If you no longer have the manual or the number has rubbed off, you can always remove the plug first and take it to AutoZone with you.Spark plugs that are gapped incorrectly can cause an engine to miss, or run erratically, especially during idle. The incorrect spark plug gaps can cause uneven firing of individual spark plugs and delay engine combustion; both of which can cause an engine to miss or idle erratically.
|Replacement Part Type||Briggs & Stratton Spark Plug Part Number||Spark Plug Gap|
|Extended Life Series® OHV Spark Plug Platinum (Replaces Champion RC12YC)||696202 5066 (5066D, 5066H)||.030”|
|Resistor Spark plug - hotter spark (Replaces Champion RC14YC)||496018S 5092||.030”|