8TEN Deck Rebuild Kit for Cub Cadet CC30 Troy Bilt TB30R 30-Inch 942-04385 918-04822B Blade Spindle Belt Idler

What It Is

The 8TEN Deck Rebuild Kit supplies all the wear parts needed to restore the cutting deck on Cub Cadet CC30 and Troy-Bilt TB30R 30-inch walk-behind mowers. It includes a replacement blade spindle assembly, belt, and both idler pulleys—everything required to fix common deck vibration, belt slip, or poor cutting performance.

Fitment & Compatibility

Before buying, confirm your mower has a 30-inch stamped steel deck and uses OEM part numbers 942-04385 (spindle assembly), 918-04822B (belt), and the associated idler pulleys. This kit fits Cub Cadet CC30, Troy-Bilt TB30R, and some MTD-built 30-inch models from the same era. Check your deck’s spindle bolt pattern—this kit uses a 3-bolt flange mount. If your deck uses a 4-bolt spindle or a different belt length (measure your old belt: typical length is about 93 inches), it won’t work. Also verify that your blade bolt size is 5/8-inch (common for these models).

Key Things to Know

• Quality: 8TEN is an aftermarket brand. Parts are functional but may have tighter tolerances than OEM—check for burrs on the spindle shaft before installing.
• Installation difficulty: Moderate. You’ll need a socket set, a torque wrench (spindle bolts: 30–40 ft-lbs), and a blade removal tool. Plan 45–90 minutes.
• Common gotcha: The spindle bearing is pre-greased but not sealed. Apply a light coat of anti-seize to the blade bolt threads and spindle shaft to prevent seizing next season.
• Belt routing: Take a photo of the original belt path before disassembly. The new belt may feel stiff; run the deck at low RPM for 5 minutes to seat it.

Should You Buy It

Buy this kit if your CC30 or TB30R has a wobbly spindle, a shredded belt, or noisy idlers—and you want a single box that covers all the common deck failures. It’s a solid value for DIYers who don’t need OEM branding, but skip it if you prefer genuine Cub Cadet parts for a perfect fit or if your deck has additional damage (e.g., bent spindle housing).