GX22166 AM104032 Fuel Tank Gas Cap 751-3111 AM107344 Compatible with Cub Cadet 751-0403A 1-303284 1-513508 Compatible with John Deere Mower LA125 LA130 LA135 LA140 397975 795027 01538400

What It Is

This is a replacement fuel cap for select Cub Cadet and John Deere riding mowers and lawn tractors. It seals the fuel tank to prevent leaks and evaporation, and includes a vent to equalize pressure.

Fitment & Compatibility

Before buying, confirm your mower’s model number (e.g., LA125, LA130, LA135, LA140 for John Deere; Cub Cadet models using OEM 751-0403A or 1-303284). Cross-reference your original cap’s part number: this cap replaces GX22166, AM104032, 751-3111, AM107344, 397975, 795027, and 01538400. It is an aftermarket part, not OEM, but fits the same thread size and vent design. Measure the cap’s outer diameter (typically ~1.5 inches) and thread pitch (standard fine thread for these tanks) if possible. No deck size or engine specs matter—only the fuel tank opening.

Key Things to Know

• Quality: Budget aftermarket cap. Some users report looser fit or less durable plastic than OEM, but it seals adequately for most. Check for cracks if dropped.
• Installation: Hand-tighten only; over-tightening can strip threads or crack the cap. No tools needed.
• Venting: If your engine starves for fuel or stalls after running, the vent might be clogged. Test by loosening the cap slightly—if it runs fine, the vent is faulty.
• Common gotcha: This cap is not universal. It will not fit most push mowers or older tractors with different thread sizes (e.g., ¼-turn caps). Always compare physically to your old cap.

Should You Buy It

Buy this cap if you need a quick, cheap fix for a lost or leaking cap on a compatible Cub Cadet or John Deere tractor and don’t mind slightly lower build quality. It’s fine for occasional use but may not last as long as OEM. If you have a newer or expensive machine, or want guaranteed fit and longevity, spend more on the original OEM cap.