Stens 125-280 Fuel Cap, with Gauge, Not Compatible with Greater Than 10% Ethanol Fuel, Replaces Cub Cadet: 751-0226A, 951-0226, 3 Height, 3 Width, 10.625 Depth

What It Is

The Stens 125-280 is an aftermarket fuel cap with an integrated fuel gauge for Cub Cadet lawn tractors and zero-turn mowers. It replaces OEM part numbers 751-0226A and 951-0226, letting you check fuel level at a glance without opening the cap.

Fitment & Compatibility

Before buying, confirm your mower uses a bayonet-style cap with a 3-inch diameter opening and a 3-inch height. The cap is not compatible with fuel containing more than 10% ethanol—E15, E20, E85 will damage the gauge seal. It fits most Cub Cadet models that originally used part 751-0226A or 951-0226, but also works on some MTD, Troy-Bilt, and Craftsman tractors with the same cap design. Measure your existing cap’s width (across the top) and depth (from top to sealing surface) to verify fit—Stens lists dimensions as 3"W x 3"H x 10.625"D (depth is box size, not cap depth; cap depth is roughly 1.5"). Check your mower’s fuel tank neck for any damage or debris that could prevent a proper seal.

Key Things to Know

• Installation: Simple twist-on replacement—no tools needed. Ensure the gasket seats evenly to avoid leaks.
• Quality: Rated 4.2/5 from 190 reviews; common complaints are gauge fogging or sticking over time, especially if exposed to high-ethanol fuel.
• Gotcha: The gauge is mechanical (float-driven), not electronic—it may not read accurately if the mower is on a slope.
• Ethanol warning: Using fuel above 10% ethanol voids any warranty and can cause the plastic gauge lens to crack or cloud.

Should You Buy It

If you have a compatible Cub Cadet or MTD tractor and want a convenient fuel-level check without opening the cap, this is a solid upgrade at $38. It’s best for users who run standard E10 gas and don’t need a precise gauge reading on uneven terrain. Skip it if you use ethanol blends above 10% or want a more durable, fog-free gauge.