Fuel Gas Tank Cap Vented 751-10049 751-3071 Compatible with MTD Craftsman Toro Cub Cadet Gravely Murray Husqvarna Snapper Mower and Lawn Tractor

What It Is

This is a vented replacement fuel gas tank cap designed to fit a wide range of lawn mowers and lawn tractors from major brands like MTD, Craftsman, Toro, Cub Cadet, Gravely, Murray, Husqvarna, and Snapper. It replaces OEM part numbers 751-10049 and 751-3071, ensuring proper fuel tank pressure release and preventing vacuum lock that can cause engine stalling.

Fitment & Compatibility

Before buying, confirm your mower’s original cap part number matches 751-10049 or 751-3071. This cap fits most MTD-built models (Cub Cadet, Craftsman, Troy-Bilt, Yard-Man) and many Toro, Murray, Husqvarna, and Snapper units with compatible fuel tanks. Measure the cap’s outer diameter (typically ~1.5–1.75 inches) and thread pitch (standard coarse) to match your tank neck. Check your model’s parts diagram or manual—this cap is not universal for all brands (e.g., some John Deere or Honda models use different sizing). It’s an aftermarket part, so slight variations in material or vent design may occur compared to OEM.

Key Things to Know

• Quality: Made of plastic with a built-in vent; some users report the vent can stick if debris clogs it—clean periodically with compressed air.
• Installation: No tools needed—simply twist on until snug. Avoid overtightening, which can crack the cap or damage the tank threads.
• Common Gotcha: If your mower runs rough or dies after a few minutes, check if the cap is venting properly. A non-vented cap (or clogged vent) creates vacuum lock. Test by loosening the cap; if engine improves, the vent is blocked.
• Fitment: Works on most standard gas tanks, but not compatible with caps that have a separate fuel gauge or locking mechanism. Verify tank neck depth—some deeper tanks may need a taller cap.

Should You Buy It

This cap is a solid, budget-friendly replacement for common MTD, Craftsman, Toro, and Cub Cadet mowers if your original cap is lost, cracked, or not venting. It’s easy to install and solves typical stalling issues. However, if you have a less common brand or need a precise OEM match, consider spending more for a genuine part from your manufacturer.