2pcs Fuel Cap replace for Husqvarna 539 91 43-63 Grasshopper 100210 Gravely: 01538400, Husqvarna: 539914363 Toro 1-513508, 112-0321, 112-6120 Kees 914363 125-384 Rotary 8935 stens 125-384

What It Is

This is a two-pack of replacement fuel caps designed for gas-powered zero-turn mowers and tractors from Husqvarna, Grasshopper, Gravely, Toro, and Kees. It seals the fuel tank to prevent leaks and debris ingress while letting air in to avoid vacuum lock.

Fitment & Compatibility

• Cross-reference the OEM part numbers: Check your mower’s manual or existing cap for Husqvarna 539914363, Gravely 1538400, Toro 1-513508, 112-0321, or 112-6120. Also fits Stens 125-384 and Rotary 8935.
• Measure the cap diameter: Most compatible caps are about 1.5 inches (38 mm) across the threads. Measure your tank opening before buying—this cap won’t fit smaller or larger necks.
• Brand-specific models: Confirmed for Husqvarna zero-turns (e.g., Z242F, Z254), Grasshopper 100210, Gravely Pro-Turn, Toro TimeCutter/ZT models. Not universal—verify your deck size or model year via the OEM number.
• Aftermarket vs. OEM: This is a non-OEM replacement. It may lack the exact venting pressure or material feel of the original, but it’s a direct fit for the listed numbers.

Key Things to Know

• Venting is critical: If the cap is too tight or vents poorly, the engine may starve for fuel and stall. Test run after install—if you hear a hiss or engine sputters, the cap may need a slight loosening or replacement.
• Installation is tool-free: Just push on and twist clockwise until snug. Overtightening can crack the plastic or strip threads—hand-tight only.
• Quality variance: At $8.90 for two, these are budget caps. Some users report the gasket wears faster than OEM, leading to leaks over time. Check for a tight seal after a few months.
• Not for pressurized systems: Some newer mowers use a pressurized fuel system requiring a specific cap. This cap is for standard atmospheric venting only—verify your tank type.

Should You Buy It

If you need a quick, affordable fix for a lost or cracked cap and your mower matches the listed OEM numbers, this two-pack is a solid value. It’s less durable than OEM but works fine for light-to-medium use. Skip it if you have a high-end mower with a pressurized tank or if you want a cap that lasts multiple seasons without replacement.