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How much does a lawnmower spark plug cost?

Dennis WaldenSep 13, 2021

Spark plugs can cost anywhere from $2-$10, depending on where you get them and the brand or type you prefer.

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Herein, does it matter what spark plugs you use in 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.

Likewise, are spark plugs for mowers 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.

Besides, what kind of spark plug does a push mower use?

Also known as L head or Side Valve Engines, these engines are commonly used for walk behind lawn mowers and pressure washers.

Replacement Part TypeBriggs & Stratton Spark Plug Part NumberSpark Plug Gap
Resistor692051.020”

How often should you change spark plugs in lawn mower?

every 25 hours

How often do you need to change oil in lawn mower?

every 50 hours

What happens if I use the wrong spark plug in my lawn mower?

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.

Will a lawn mower start with a bad spark plug?

A dirty or fouled spark plug can cause your lawn mower to not start. It can also work itself loose, causing issues. If the spark plug appears to be seated correctly but the engine doesn't start, a new one may be in order.

What should a lawn mower spark plug look like?

Its center electrode should have a flat top. ... If the spark plug is in good shape but is black with carbon or wet with gasoline, then a good cleaning with a wire brush and adjusting the gap between the electrodes may be all that's needed for the spark plug to restore power to the mower.

How do I know which spark plug for my lawn mower?

Check the information on the old plug to determine the proper replacement. 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 socket do I need for a spark plug?

Most spark plugs require a 5/8" (16mm) size spark plug socket. This refers to the size of the flats on the spark plug that are in contact with the socket.

What spark plug do I need for my Briggs and Stratton?

Flathead Engine Spark Plugs & Gaps
Replacement Part TypeBriggs & Stratton Spark Plug Part NumberSpark 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”
Resistor692051.020”
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About The Author

Dennis Walden

Dennis owns a small farm and loves to grill since his early childhood. He’s a professional cook, but hiking and enjoying the great outdoors is his no less favorite part of life.

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