Grasshopper Mower Screw-On Fuel Cap with Fuel Level Indicator, For Grasshopper FrontMount Models Built Between 1985 and 2007, Fits 4.3 Gallon Gas Tank, Gasoline, Genuine Replacement Part, OEM 141125

What It Is

This is a genuine OEM replacement fuel cap with an integrated fuel level indicator, designed specifically for Grasshopper FrontMount mowers built between 1985 and 2007 that use a 4.3-gallon gasoline tank. It replaces the original cap (OEM part number 141125) and allows you to see fuel level at a glance without opening the cap.

Fitment & Compatibility

Before buying, confirm your mower is a Grasshopper FrontMount model (not a MidMount or rear-engine) manufactured from 1985 to 2007. Measure your fuel tank filler neck diameter—this cap fits tanks with a 2-inch threaded opening (standard for 4.3-gallon Grasshopper tanks). If your mower has a non-threaded or push-on cap, this will not work. It is a direct OEM replacement, so no adapter is needed for compatible models. Check your owner’s manual or look for the original part number 141125 on your current cap to verify.

Key Things to Know

• Installation is simple – Just unscrew the old cap and screw this one on by hand. No tools required.
• Fuel level indicator is mechanical – A float inside the tank moves a visible gauge on top. It’s reliable but can be slow to respond when the tank is near empty.
• Only for gasoline – Do not use with diesel, ethanol blends above E10, or any fuel additives that may damage the plastic or float.
• Common gotcha – Over-tightening can crack the cap or strip the threads. Tighten snugly, not with force.

Should You Buy It

If you own a compatible Grasshopper FrontMount mower (1985–2007, 4.3-gallon tank) and want a direct fit, durable replacement that adds fuel-level visibility, this is the right choice. It’s pricier than generic caps but avoids fitment issues and fuel gauge inaccuracy common with aftermarket options.