Keycci 038-0005-00 Mower Blades Compatible with Bad Boy MZ Magnum 54" Deck, High Lift Mulching Blades Fit for Bad Boy 54" Lawn Tractors, 3 Pack (038-0005-00)

What It Is

This is a 3-pack of high-lift mulching blades designed for 54" Bad Boy MZ Magnum mowers and compatible 54" Bad Boy lawn tractors. They replace OEM part 038-0005-00, intended for cutting grass and mulching clippings on residential or commercial properties.

Fitment & Compatibility

• Deck size: Fits 54" Bad Boy mower decks only. Measure your deck width (not blade length) to confirm.
• Models: Bad Boy MZ Magnum (54"), plus select 54" Bad Boy lawn tractors. Verify your model number against Bad Boy’s compatibility list for 038-0005-00.
• OEM replacement: Direct aftermarket replacement for OEM part 038-0005-00. Not made by Bad Boy, but matches dimensions and mounting hole pattern.
• Measurements: Check blade length (likely ~18.5") and center hole size (typically 5/8" or 7/8") against your current blade. If they don’t match, return immediately.
• What to check: Look at your mower’s deck stamp or manual for “54” deck" and “038-0005-00” compatibility. If you have a different deck size or OEM part number, these won’t fit.

Key Things to Know

• Installation difficulty: Moderate. Requires a socket wrench, torque wrench, and blade removal tool (or block of wood). Torque bolts to 70-90 ft-lbs. Not for beginners without mechanical comfort.
• High-lift vs. standard: High-lift blades create more suction for better mulching and bagging, but can reduce engine efficiency on thick grass. Use only if your mower handles high-lift loads.
• Aftermarket vs. OEM: These are aftermarket, so they may be slightly thinner or less balanced than OEM Bad Boy blades. Inspect for warping or burrs before installing.
• Mulching performance: Works best with a mulching kit or plug. If you’re side-discharging, consider a standard blade instead.

Should You Buy It

Buy these if you own a 54" Bad Boy MZ Magnum or compatible model, want an affordable 3-pack for mulching, and are comfortable with basic blade replacement. Skip them if you need OEM precision for commercial use, have a different deck size, or prefer standard blades for side-discharge cutting.