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The Craftsman Walk Behind Mower 247.377050 is a gas-powered lawn mower with a 21-inch cutting width and an adjustable cutting height of 1-3 inches. This page provides comprehensive information about its specifications, maintenance, and repair.

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Spark plug number needed

What is spark plug needed?

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2 Answers

My old (60 years) Briggs & Stratton lawnmower engine uses a Champion J8 spark plug.

You can take the original plug of your mower to a spare parts shop or mower repair shop to try to get a replacement.

Don't get a plug that's longer than the original, if too long it will break the piston of the engine.

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Hi @vickijones

According to the engine parts diagram for your model (click on View Engine), the spark plug is part # 491055S (supplier example only)

Search online for the part number only to find suppliers that suit you best.

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Vicki Jones will be eternally grateful.
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