064-8057-00 Brake Cable Replacement for Bad Boy MZ & MZ Magnum Series Lawn Mowers – OEM Compatible Part – Fits Models 54" MZ Magnum (Direct Fit for 064-8057-00, 064805700)"

What It Is

This is a replacement brake cable for Bad Boy MZ and MZ Magnum series zero-turn mowers. It engages and releases the parking brake system, making it essential for safe operation on slopes or when parked.

Fitment & Compatibility

Before buying, confirm your mower is a Bad Boy MZ or MZ Magnum with a 54-inch deck – this cable is a direct fit for that specific deck size. Check your OEM part number: it replaces 064-8057-00 or 064805700. Measure your existing cable length (approx. 60 inches end-to-end) and verify the end fittings match (typically a threaded barrel at one end and a loop at the other). This is an aftermarket part, not OEM Bad Boy, so expect slight differences in sheathing stiffness or thread length. Always compare to your old cable before installation.

Key Things to Know

• Quality: Aftermarket cable may have a slightly stiffer outer sheath than OEM, but most users report it works fine once routed correctly.
• Installation: Moderate difficulty – requires removing the brake lever, routing the cable under the deck, and adjusting tension. Plan 30-45 minutes.
• Common gotcha: The cable may be 1-2 inches longer than OEM. If so, you’ll need to zip-tie excess slack to avoid snagging on the deck or drive belts.
• Check brake pads: While replacing the cable, inspect brake pads for wear. A seized cable can mask worn pads.

Should You Buy It

If you own a Bad Boy MZ or MZ Magnum with a 54-inch deck and need a budget-friendly brake cable replacement, this is a solid choice for the price. It’s best for DIYers comfortable with basic mower mechanical work and willing to adjust routing. Skip it if you want an exact OEM match or have a non-54-inch deck model.