594061 Fuel Tank Cap 84004416 Gas Cap for Brigs and Straton To-Ro Crafts-Man Lawn Mower Gas Tank Caps Replacement

What It Is

This is a replacement fuel tank cap for Briggs & Stratton, Toro, and Craftsman lawn mowers, designed to seal the gas tank and prevent fuel spillage. It fits a range of walk-behind mowers, riders, and zero-turn models using the OEM part numbers 594061, 84004416, and 693511.

Fitment & Compatibility

Before buying, verify your mower’s model number (usually found under the seat or on the frame) and cross-reference with Briggs & Stratton part 594061 or Toro/Craftsman 84004416. This cap has a 2-inch diameter and a twist-lock design with a tether loop. It is not universal—check that your tank neck is smooth (not threaded) and that the cap’s venting matches your original (some are non-vented). Avoid if your mower uses a different cap style, like a push-in or threaded type.

Key Things to Know

• Quality: Aftermarket cap; may feel slightly lighter than OEM but seals well. Some users report the tether is shorter than original.
• Installation: Tool-free—just twist on until snug. No special skills needed.
• Venting: This cap is vented. If your original was non-vented, using this could cause fuel evaporation or leaks. Check your old cap for a small hole or vent symbol.
• Common gotcha: Does not fit all Briggs engines—only those with the 2-inch smooth neck. Measure before buying.

Should You Buy It

If you need a quick, low-cost fix for a leaking or missing gas cap on a compatible Briggs, Toro, or Craftsman mower, this is a solid choice. It’s not premium, but it works for basic sealing and is far cheaper than an OEM replacement. Skip it if you need a non-vented cap or a perfect OEM match.