8TEN Deck Spindle Assemblies for Grasshopper 52" & 61" Decks — 2-Pack, OEM 623763 Fit, Includes Hardware

If your Grasshopper 9852 or 9861 mower is throwing uneven cuts, vibrating, or making unusual noises, worn spindles are a common cause. The 8TEN replacement spindle assemblies match the OEM 623763 specification so you can swap them in quickly and return your deck to factory-like operation. Each pack contains two complete spindles with blade mounting hardware and the key dimensional details you need to confirm compatibility before purchase.

How do these spindles match OEM specifications?

8TEN spindles are manufactured to align with the Grasshopper 623763 dimensions and fit points. That means the same bolt pattern, shaft keyway, and overall height so blades mount and track like the original parts. Using components built to these specs reduces alignment issues and installation guesswork.

• Direct replacement for OEM part number 623763
• Fits Grasshopper models 9852 and 9861
• Shaft keyway width: 1/4" for original blade fit
• Spindle height: 5 3/4" to match deck spacing

What hardware and components are included in the 2-pack?

Each 8TEN package supplies two fully assembled spindles plus the blade mounting hardware required for reattaching your cutting blades. That minimizes trips to the hardware store and lets you replace multiple spindles at once for consistent deck alignment.

• Two complete spindle assemblies in one pack
• Blade mounting nuts and washers included
• Preassembled bearings and shaft for straightforward swap
• Ready to install with basic tools — no machining needed

How will replacing spindles improve mower performance?

Fresh spindles eliminate wobble and shaft play that cause uneven cutting and extra wear on belts and blades. Installing matched spindles restores blade balance and deck geometry so your mower cuts cleaner and runs smoother, reducing vibration and noise.

• Reduce blade wobble and vibration across the deck
• Improve cut quality and stripe consistency
• Lower stress on belts, pulleys, and bearings
• Extend the operational life of your deck components

How difficult is installation for a home mechanic?

Installation is straightforward for anyone comfortable with basic mower maintenance. The 8TEN spindles use the same mounting points and keyway sizing as the OEM part, so removal and replacement require common hand tools and attention to torque specs.

• Remove blade, belt, and old spindle using wrenches and sockets
• Transfer or discard old hardware as needed; new nuts/washers provided
• Align keyway and shaft, torque mounting bolts to factory spec
• Test blade runout and belt tension after installation

Who is this for: The 8TEN deck spindle assemblies are aimed at owners and technicians of Grasshopper 9852 and 9861 mowers who need a reliable, OEM-spec replacement for part 623763. If you operate a 52" or 61" Grasshopper deck and want to remove vibration, restore cut quality, and avoid repeated shop trips, this two-pack offers the necessary fit and hardware to get you back to mowing with minimal downtime.