Grasscool ZT1 54 inch Mower High Lift 6 Star Blades Replace Cub Cadet 942-05056A for Ultima ZT2-54 XT1-54 XT2-54 RZT54 Troy Bilt Mustang Z54 54'' Zero Turn Tractor

What It Is

This is a set of six high-lift, 6-star blades designed for 54-inch zero-turn mowers, primarily Cub Cadet and Troy-Bilt models. They replace OEM Cub Cadet part 942-05056A and are meant for heavy-duty cutting, bagging, and mulching in thick grass.

Fitment & Compatibility

Before buying, confirm your mower has a 54-inch cutting deck—these blades only fit that size. They are direct replacements for Cub Cadet Ultima ZT2-54, XT1-54, XT2-54, RZT54, and Troy-Bilt Mustang Z54. Measure your current blade length (should be about 18 inches, center hole to tip) and ensure the center hole diameter matches (typically 5/8-inch or 7/8-inch; check your manual). These are aftermarket, not OEM, so verify the blade offset and thickness match your original set—especially if you have a stacked-blade setup on a fabricated deck. If your deck uses a different blade pattern (e.g., 3-blade or 5-blade), these won’t work.

Key Things to Know

• Quality: 4.4 stars from 355 reviews suggests good durability, but some users report slight imbalance out of the box—balance each blade before installing.
• Installation: Easy if you have a blade removal tool and torque wrench; tighten to 70-90 ft-lbs. Use anti-seize on spindle bolts to prevent rust.
• Gotcha: High-lift blades increase suction for better bagging but drain battery faster on electric mowers and can cause scalping on uneven terrain—adjust deck height accordingly.
• Gotcha: These are 6-star blades—if your deck uses a 4-star or 5-star pattern, they may not align with your blade adapter; check your spindle configuration.

Should You Buy It

Buy these if you need reliable, aggressive blade replacements for a 54-inch Cub Cadet or Troy-Bilt zero-turn and want to improve bagging or mulching performance without paying OEM prices. They’re best for owners who cut thick or wet grass regularly and don’t mind occasional balancing. Skip them if you have a different deck size, a non-compatible spindle pattern, or prefer OEM exact-fit parts for warranty reasons.