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How do I know what spark plug I need for my lawn mower?

By Matthew Sanders

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.

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”

How often should a lawn mower spark plug be changed?

every 25 hours
When To Check & Replace Spark Plugs For standard lawn mower and small engine maintenance, you should check and/or replace spark plugs: once a season. every 25 hours of use.

Do all lawn mowers take the same size spark plug?

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.

How often do you change spark plugs in lawn mower?

For standard lawn mower and small engine maintenance, you should check and/or replace spark plugs: once a season. every 25 hours of use.

Where can I buy snapper spark plugs for my lawn mower?

Snapper Spark Plug available online from LawnMowerPros and ready to ship direct to your door. We are an Authorized Snapper Dealer carrying a large selection of Snapper Spark Plugs. If you do not see the Snapper Part you need, please complete the Lawn Mower Parts Request Form and we will be happy to assist you.

What kind of spark plugs do I need for a lawn mower?

Flathead Engine Spark Plugs & Gaps. Also known as L head or Side Valve Engines, these engines are commonly used for walk behind lawn mowers and pressure washers. If you have a Quantum engine, be sure to check the Code Date before doing any engine maintenance.

What is the right spark plug and gap for my small engine?

What is the right spark plug and gap for my small engine? Checking and changing spark plugs is an essential step in routine small engine maintenance and when troubleshooting problems with your lawn mower, snow blower or other outdoor power equipment.

How do you remove a spark plug from a riding lawn mower?

Use a spark plug wrench to remove the spark plug from the engine. Using a gap tool, set the gap on the spark plug to the gap specified in the owner’s manual. For this engine, the gap is .03 inches.

Snapper Spark Plug available online from LawnMowerPros and ready to ship direct to your door. We are an Authorized Snapper Dealer carrying a large selection of Snapper Spark Plugs. If you do not see the Snapper Part you need, please complete the Lawn Mower Parts Request Form and we will be happy to assist you.

Flathead Engine Spark Plugs & Gaps. Also known as L head or Side Valve Engines, these engines are commonly used for walk behind lawn mowers and pressure washers. If you have a Quantum engine, be sure to check the Code Date before doing any engine maintenance.

What is the right spark plug and gap for my small engine? Checking and changing spark plugs is an essential step in routine small engine maintenance and when troubleshooting problems with your lawn mower, snow blower or other outdoor power equipment.

Where can I get Oil for my snapper lawn mower?

Lawn mower engine oil recommendations for brands other than Briggs & Stratton would be best obtained through the engine manufacturer, engine Operator’s Manual, or local Snapper Service & Repair Dealers.