8TEN Deck Rebuild Kit Blade Spindle Belt Idler Kit for Cub Cadet Ultima ZT2 ZTS2 ZT3 60-Inch Decks 742-05620 918-04822B

What It Is

This 8TEN deck rebuild kit bundles replacement blade spindles, belts, and idler pulleys for Cub Cadet Ultima ZT2, ZTS2, and ZT3 zero-turn mowers with 60-inch decks. It’s designed for a full deck overhaul, restoring cutting performance and eliminating vibration or belt slipping.

Fitment & Compatibility

Before buying, verify your mower’s deck size is exactly 60 inches (not 54 or 72). This kit fits Cub Cadet Ultima ZT2, ZTS2, and ZT3 models specifically. Cross-reference OEM part numbers 742-05620 (spindle assembly) and 918-04822B (belt/idler kit). Measure your existing spindle bolt pattern (typically 3-bolt, 4-inch spacing) and belt length (roughly 96 inches for 60-inch decks). Aftermarket compatibility is confirmed for these models only—do not use on older Cub Cadet or other brands without checking spindle shaft diameter (must be 1 inch).

Key Things to Know

• Quality vs OEM: 8TEN parts are aftermarket but use sealed bearings and hardened steel pulleys; however, some users report slightly shorter belt life than genuine Cub Cadet belts.
• Installation difficulty: Moderate. You’ll need a socket set, torque wrench, and possibly a puller for stubborn spindles. Plan 2-3 hours.
• Common gotchas: The idler arm spring tension can be tricky—ensure correct routing before tightening. Also, check deck alignment after install to avoid belt throw.
• What’s included: Two spindles, two belts, and idler pulleys/hardware. Verify you have all parts before starting; missing washers are a frequent complaint.

Should You Buy It

This kit is a solid value for DIY owners of Cub Cadet Ultima ZT2/ZTS2/ZT3 60-inch decks who want a one-stop rebuild without sourcing individual parts. If you prioritize maximum belt longevity or have a non-Cub Cadet mower, stick with OEM or measure carefully. For most, it’s a cost-effective fix for worn-out deck components.