Briggs & Stratton 5062K Spark Plug Platinum

What It Is

The Briggs & Stratton 5062K Platinum Spark Plug is a direct-replacement ignition component designed for Briggs & Stratton engines found in lawn mowers, tractors, and other outdoor power equipment. It delivers a more durable platinum center electrode for longer service life vs. standard copper plugs.

Fitment & Compatibility

Before buying, confirm your engine model number (stamped on the valve cover or blower housing) and cross-reference it with Briggs & Stratton’s plug chart. This plug fits most Briggs OHV and flathead engines with a 14mm thread diameter, 0.750” reach, and a 13/16” hex size—common on push mowers, riding mowers, zero-turns, and generators. Avoid assuming it fits non-Briggs engines; check your owner’s manual or existing plug’s specs. OEM replacement, not universal.

Key Things to Know

• Gap is pre-set at 0.030” (0.76mm), but always verify with a gap tool before installation—shipping can shift it.
• Installation is simple: remove spark plug boot, unscrew old plug with a 13/16” socket, hand-thread new one, then torque to 20 ft-lbs (no overtightening).
• Platinum tip resists wear up to 2–3x longer than copper plugs, but still replace every 100–200 hours or annually for best performance.
• Common gotcha: using a non-resistor plug can cause ignition interference on engines with electronic ignition—this one is resistor-type, so it’s safe.

Should You Buy It

If you own a Briggs & Stratton engine and want a reliable, long-lasting spark plug that’s a direct drop-in, the 5062K is a solid choice. It’s ideal for routine maintenance on mowers, tractors, or generators, especially if you prefer less frequent replacements. Skip it if you need a different thread size or reach for non-Briggs engines.