10 PCS Gallon Gas Can Caps, 5 Gallon Coarse Thread Gas Lid for Gasoline, Plastic and Metal Gas Tank Lid, Portable Diesel Fuel Can Cover, Universal Automotive Gas Spout Cap Replacement（Red）

What It Is

This is a 10-pack of replacement gas can caps with coarse threads, designed to fit standard 5-gallon gasoline, diesel, and fuel containers. They are intended for use on portable fuel cans, not lawn mower fuel tanks directly.

Fitment & Compatibility

• Thread type: Coarse thread (not fine thread). Measure the inner diameter of your can’s neck—these caps typically fit 2-inch openings.
• Can type: Works on most plastic and metal 5-gallon fuel cans, but not on all brands (e.g., VP Racing or No-Spill cans have proprietary threads).
• Not for: Lawn mower fuel tanks or any fuel system component on the mower itself—these are for portable gas cans only.
• OEM vs aftermarket: Aftermarket replacement; not brand-specific. Check your current cap’s thread pitch (coarse vs fine) before buying.

Key Things to Know

• Quality: Caps are basic plastic; they seal adequately but may not be as durable as OEM caps from major can brands.
• Installation: Simple screw-on, no tools needed. Ensure the cap is tightened firmly to avoid leaks.
• Gotcha: Coarse thread caps are common on older or generic cans; many newer cans use fine threads. Verify thread type by comparing to your existing cap.
• Pack size: You get 10 caps—useful for multiple cans or as spares, but unnecessary if you only need one.

Should You Buy It

Buy this if you have several 5-gallon fuel cans with coarse-thread necks and need cheap, functional replacements or spares. Skip it if you need a single cap, have fine-thread cans, or want a premium, leak-proof seal for long-term storage.