Champion Spark Plugs, a wholly owned brand of Federal-Mogul Corporation that specializes in making spark plugs for automobiles, has the RJ19LM and the J19LM in its product line-up. Although they are essentially the same, the "R" designation of the former indicates an added feature over the latter.
People also ask, are lawn mower spark plugs a standard size? Replacing a spark plug is one of the easiest tasks of lawnmower maintenance. ... These specialty sockets have rubber inserts to protect the spark plug's ceramic body, and they're available in a variety of sizes to fit any size spark plug (13/16 and 3/4 in.spark plugs are the most common).
This spark plug has a thread diameter of 14 mm, a reach of 19 mm and a hex size of 21 mm. The terminal nut on this spark plug has a strong resistance to vibration while remaining thoroughly connected to the rest of the plug.
Ideally, most automobile spark plugs use a thread size of about 14mm thread why those of lawn mower range between 10 to 12 mm. Because of these differences in thread sizes, they just won't fit into the same hole or the unit in which the plug is to be fit in.
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.
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. Ask for someone to help you find the right spark plug and tell them your engine model and mower model.Share to:FacebookTwitterPinterestEmail