SummerCool ZT1-50 Blades 742P05094 Replace for Cub Cadet ZT2-50 XT1-LT50,50 Inch Decks High Lift Mower Blades with S-Shaped Hole

What It Is

This is a set of three high-lift mower blades designed for 50-inch cutting decks on Cub Cadet ZT2-50 and XT1-LT50 zero-turn and lawn tractors. The S-shaped hole pattern ensures proper mounting to the spindle, while the high-lift profile improves grass discharge and bagging performance.

Fitment & Compatibility

Before buying, confirm your deck is exactly 50 inches wide—measure from blade tip to blade tip if unsure. These replace OEM part 742P05094 and fit Cub Cadet ZT2-50 (model series 17BVA, 17BVB) and XT1-LT50 (model series 13AQA, 13AQB). Also compatible with some RZT-50 and LTX1050 models using the same deck. Check that your spindle bolts are 5/16” x 1” (or similar) and your blades have a 0.5” center hole with the S-shaped drive hole pattern—this is non-negotiable for proper spindle engagement. Aftermarket blades may vary slightly in thickness (0.1875” vs OEM 0.200”), so verify clearance with your deck housing.

Key Things to Know

• Installation: Medium difficulty. You’ll need a torque wrench (set to 70–90 ft-lbs) and a blade removal tool or block of wood to prevent rotation. Reverse threads on some spindles—check direction before tightening.
• Quality: 4.3-star average from 59 reviews. Users report good balance and sharpness out of box, but a few note minor vibration if blades aren’t perfectly matched (weigh each before installing).
• Gotcha: High-lift blades increase suction but also require more engine power—may bog on thick, wet grass. Not ideal for mulching; they’re best for side-discharge or bagging.
• Durability: Heat-treated steel holds edge longer than standard blades, but hitting rocks or stumps will chip them. Inspect after each use.

Should You Buy It

Buy these if you own a Cub Cadet ZT2-50 or XT1-LT50 with a 50-inch deck and prioritize clean cuts, strong bagging, or side-discharge performance. Skip them if you primarily mulch or have a smaller deck—standard lift blades or OEM equivalents may suit you better. For the price, they’re a solid aftermarket upgrade over worn factory blades.