Flex Funnel - Wide Mouth Flexible Funnel with Handle, Automotive Funnels for Engine Oil, Liquid, Diesel, Kerosene,Gasoline (1PACK Blue FUNNELS)

What It Is

This Flex Funnel is a wide-mouth, flexible funnel designed for transferring engine oil, diesel, kerosene, and gasoline into lawn mowers, tractors, generators, and other small engines. Its flexible spout and handle make it ideal for reaching tight fill necks on push mowers, riding mowers, and zero-turn models.

Fitment & Compatibility

Before buying, check your mower’s oil or fuel fill neck diameter and angle. The funnel’s spout is roughly 1 inch wide and 5 inches long, so it fits most standard fill openings (common on Briggs & Stratton, Kohler, Kawasaki, and Honda engines). It will not fit mowers with recessed or side-mounted fill caps that require a narrow, rigid spout (e.g., some older Snapper or Toro models). For zero-turn mowers with tight engine bays, the flexible spout is a plus—but confirm you have at least 6 inches of clearance above the fill point. No OEM or aftermarket brand issues; it’s universal.

Key Things to Know

• Material & quality: Made of flexible, oil-resistant plastic (PP/TPR). It holds up well to gasoline and diesel but can crack if dropped on concrete when cold.
• Installation difficulty: None—just place in fill neck. The handle helps stabilize when pouring one-handed.
• Common gotcha: The funnel’s wide mouth (about 4.5 inches) can be too large for mower fuel tanks with small openings—measure your fill hole first. Also, it does not include a filter or screen, so debris can pass through.
• Cleaning: Rinse with soap and water after oil use; avoid harsh solvents that may degrade the plastic over time.

Should You Buy It

Yes, if you need a cheap, versatile funnel for routine oil and fuel changes on most standard lawn mowers, generators, or small engines—especially in tight spaces where a rigid funnel won’t fit. Skip it if your mower has an unusually small or angled fill port, or if you want a built-in strainer.