54 Inch Mower Deck Blades Fit for Cub Cadet ZT1-54 ZT2-54 XT1-GT54 XT2-ST54 Troy Bilt Mustang 54 Zero Turn Mower Replaces OEM 742P05086 742-05086 CMXGZAM11019454

What It Is

This is a set of three 54-inch mower deck blades designed for Cub Cadet and Troy Bilt zero-turn mowers. They cut grass on residential or commercial properties and replace OEM part numbers 742P05086, 742-05086, and CMXGZAM11019454.

Fitment & Compatibility

• Deck size: Only fits 54-inch cutting decks. Measure your deck width before ordering.
• Models: Compatible with Cub Cadet ZT1-54, ZT2-54, XT1-GT54, XT2-ST54, and Troy Bilt Mustang 54 zero-turn mowers.
• OEM vs aftermarket: These are aftermarket blades. OEM parts are identical in dimensions but may have different coatings or edge grinds.
• Measurements: Blade length is 18.5 inches; center hole is 1 inch round with a 5-point star drive. Check your spindle shaft type—if it uses a hex or keyed drive, these won’t fit.
• What to verify: Pull one existing blade and compare: overall length, center hole shape, and thickness (typically 0.203 inches). If your blade has a different drive pattern, these won’t work.

Key Things to Know

• Quality: 4.4-star rating from 61 reviews. Users report consistent sharpness and good durability for residential mowing. Some note they dull faster than OEM on rough terrain or near gravel.
• Installation difficulty: Easy if you have a socket set and a block of wood to wedge the blade. Torque to 70–90 ft-lbs. Use thread locker if your spindle bolts are loose.
• Common gotcha: These blades are “standard” lift, not high-lift. If your deck has high-lift blades for bagging or wet grass, these may not throw clippings as far.
• Balancing: Out of the box, some blades may need balancing. Use a blade balancer before installing to avoid vibration.

Should You Buy It

Buy these if you have a compatible 54-inch Cub Cadet or Troy Bilt zero-turn and want a reliable, affordable replacement for standard cutting. Skip them if you need high-lift blades for bagging or have a different spindle drive pattern. For the price and rating, they’re a solid value for residential use.