Fuel Gas Tank Cap for MTD 751-10049 751-3111 751-3071 Cub Cadet 751-0603A John Deere GX22166 AM104032 AM118637 Ariens 01538400 Club Car Carryall-294 XRT-1500 Zero Turn Lawn Mowers

What It Is

This is a replacement fuel gas tank cap for zero-turn mowers and utility vehicles from MTD, Cub Cadet, John Deere, Ariens, and Club Car. It seals the fuel tank to prevent leaks and debris ingress while allowing proper venting during operation.

Fitment & Compatibility

Cross-reference OEM numbers: MTD 751-10049, 751-3111, 751-3071; Cub Cadet 751-0603A; John Deere GX22166, AM104032, AM118637; Ariens 01538400. Fits Club Car Carryall-294 and XRT-1500 models.

What to verify before buying:

• Thread size & type: The cap uses a standard 2-inch diameter threaded neck with 4-start threads. Measure your tank opening diameter—it must be roughly 2 inches across.
• Deck size not relevant: This cap fits the fuel tank, not the deck. Ignore deck width.
• OEM vs aftermarket: This is a genuine Cub Cadet part, not an aftermarket generic. If you need a vented cap, confirm your original cap had a vent hole (most do for gravity-feed carburetors). This cap is vented.
• Tank shape: Caps are universal across many zero-turn tanks, but check that the cap’s outer diameter (approx. 2.5 inches) clears any surrounding frame or bodywork.

Key Things to Know

• Venting is critical: If your engine runs lean or stalls after a few minutes, the cap vent may be clogged. This replacement cap’s vent is built-in and non-serviceable. Test by loosening the cap slightly while running—if engine improves, the vent is blocked.
• Installation is trivial: Screw on by hand until snug. Do not overtighten—plastic threads strip easily. No tools needed.
• Quality note: The 3.7 rating (5 reviews) suggests occasional complaints about fitment on older tanks or vent failures. Inspect your tank neck for cracks or distortion before installing.
• Fuel compatibility: Works with gasoline, ethanol blends up to E10, and diesel. Not rated for E15 or higher ethanol.

Should You Buy It

Buy this if you need a direct OEM replacement for a Cub Cadet, MTD, or John Deere zero-turn with a damaged or leaking fuel cap. It’s a simple, cheap fix for a common problem. Skip it if your tank neck is damaged (you’ll need a tank assembly) or if you need a non-vented cap for a pressurized fuel system.