951-12533 Gas Fuel Tank Cap, Fuel Cap for MTD Craftsman Troy-Bilt Yard-Man, Replaces 951-12533 751-12533 751-10649 751-10649A 951-10649 951-10649A 751-12532 951-12532

What It Is

This is a replacement gas fuel tank cap for MTD-branded lawn tractors and walk-behind mowers, including Craftsman, Troy-Bilt, and Yard-Man models. It seals the fuel tank to prevent spills and dirt ingress, and includes a built-in vent for proper fuel flow.

Fitment & Compatibility

• Cross-reference numbers: Replaces OEM parts 951-12533, 751-12533, 751-10649, 751-10649A, 951-10649, 951-10649A, 751-12532, and 951-12532.
• Brands: Fits most MTD, Craftsman, Troy-Bilt, and Yard-Man mowers with compatible fuel tanks. Does not fit all models—use cross-reference or measure.
• Measurement: Cap diameter is approximately 1.5 inches (38mm). Measure your existing cap’s outer diameter and thread pattern before buying.
• Check: Verify your mower’s model number on the engine or frame, or compare the cap’s shape (flat vs. domed) and vent location.

Key Things to Know

• Vent function: This cap is vented—essential for fuel flow. Non-vented caps can cause engine stalling or hard starts.
• Installation: Simple twist-on, no tools needed. Ensure it seats fully and clicks to avoid leaks.
• Quality: Aftermarket part; may feel slightly lighter than OEM but seals reliably for most users.
• Gotcha: If your old cap has a broken tether, this one may not include one. Check product images or description.

Should You Buy It

If your MTD-branded mower’s fuel cap is cracked, missing, or not sealing, this is a cheap, direct replacement that matches OEM specs. It’s ideal for budget-minded owners who don’t need a branded cap and want a quick fix. Verify fitment via your model number or cross-reference—if it matches, it’ll work.