CUB CADET 742P04278A-X Xtreme 17" Mulching Blade 3-Pack Z-Force Ultima Recon Pro 48" Decks

What It Is

This is a 3-pack of OEM Cub Cadet Xtreme 17-inch mulching blades designed specifically for Z-Force, Ultima, Recon, and Pro series zero-turn mowers with 48-inch decks. They replace worn blades to improve grass clipping mulching and discharge performance.

Fitment & Compatibility

Must check before buying:

• Deck size: Only for 48-inch Cub Cadet decks. Will not fit 42-inch, 54-inch, or 60-inch decks.
• Blade length: Exactly 17 inches from tip to tip. Measure your current blade; if it’s 17″, this fits.
• Center hole: 5/8″ round, with 2.5″ offset. Verify your blade’s center hole and offset match.
• OEM part number: 742P04278A-X (this is the genuine Cub Cadet replacement, not an aftermarket clone).
• Compatible models: Z-Force SZ/SX/ZX/LZ/IZ series, Ultima ZT/ZTS, Recon ZR/ZRS, Pro Z/ZT. Check your model number against Cub Cadet’s parts lookup to be sure.

Key Things to Know

• Installation difficulty: Moderate. Requires lifting the mower safely and using a torque wrench (spec: 70–90 ft-lbs). Never impact gun-tighten.
• Mulching performance: The Xtreme design has a higher lift and sharper cutting edge than standard blades—great for fine mulching but may reduce bagging efficiency.
• 3-pack value: At ~$37 per blade, this is cheaper than buying individually. Expect 25–50 hours of use per blade depending on grass conditions.
• Counterfeit risk: Buy from Cub Cadet dealers or trusted OEM parts retailers. Cheap knockoffs often have poor balance and shorter life.

Should You Buy It

Buy this if you have a 48-inch Cub Cadet zero-turn and want genuine OEM blades that maintain mulching performance and deck balance. It’s the right choice for owners who prefer factory parts over aftermarket, especially if you mow frequently and want consistent cut quality. Skip it if you have a different deck size or prefer cheaper universal blades.