594061 Fuel Tank Cap for Brigs and Straton 675Exi 725Exi Series Engines Lawn Mower To-Ro Crafts-Man Replacement Gas Tank Cap

What It Is

This is a replacement fuel tank cap designed for Briggs & Stratton 675Exi and 725Exi series engines, commonly found on Troy-Bilt, Craftsman, and other lawn mowers. It seals the gas tank to prevent leaks and fumes while allowing proper venting during operation.

Fitment & Compatibility

Before buying, check these three things:

• Engine model: Confirm your mower uses a Briggs & Stratton 675Exi or 725Exi engine (look for the model number on the engine shroud or valve cover).
• OEM equivalent: This is an aftermarket cap, not genuine Briggs & Stratton. It replaces OEM part 594061. If your original cap has that number on the underside, it should fit.
• Physical dimensions: Measure your tank opening diameter (typically ~1.5 inches) and cap height. This cap is a push-in style with a rubber gasket—not a screw-on type. Ensure your tank neck is smooth and round, not threaded.

Note: This cap does not fit all Briggs engines—only the 675Exi/725Exi series. It also won’t work on older side-valve or Vanguard engines.

Key Things to Know

• Installation is tool-free: Just push it firmly into the tank neck until the gasket seats. No threading or tightening needed.
• Gasket quality matters: The included rubber gasket can dry out over time. If the cap doesn’t seal tightly after a season, replace the gasket (generic O-rings often work).
• Venting: This cap allows air in as fuel is used, but it’s not a pressure-release type. If your mower has a separate vent line, this cap should still work without issues.
• Price vs OEM: At $6.99, it’s roughly half the cost of a genuine Briggs & Stratton cap. The 5.0 rating suggests good reliability for the price, but long-term durability may be lower than OEM.

Should You Buy It

If you need a quick, budget-friendly fix for a leaking or missing cap on a 675Exi/725Exi mower, this is a solid choice. It’s ideal for casual homeowners who want a simple push-in replacement without paying OEM prices. Not for professional landscapers or those needing a screw-on cap—double-check your tank type first.