Hearing grinding noises from your Toro zero turn mower? Blades not spinning evenly? Your spindle assembly is probably worn out, and this replacement will have your mower cutting smoothly again in no time.
This isn't some generic fit - it's specifically designed for Toro Z Master models including the Z400, Z410, Z500, Z450, Z453 with 48, 52, and 60-inch decks. Also works with GrandStand mowers like the 74558, 74568, and others. It directly replaces OEM part numbers 107-8504 and Stens 285-881, so you know the fitment is exact.
The construction is heavy-duty with corrosion-resistant materials that stand up to wet grass, debris, and years of vibration. The bearings are sealed to prevent moisture and dirt intrusion, which is usually what kills spindles prematurely. No more worrying about grass buildup or rust shortening your mowing season.
Installation is straightforward if you're comfortable working on small engines. You'll need basic tools and about an hour of time. The improvement is immediate - smooth blade rotation, elimination of grinding noises, and consistent cutting height across your entire deck. Your grass will look better because the blades are spinning true without wobble.
We include a 12-month warranty because we stand behind the quality of this spindle. It's built to handle commercial use but priced for homeowners too. Whether you're a landscaping pro or just maintaining your own property, having a reliable spindle means less downtime and better cutting results. Your Toro will cut like it did when it was new, and you'll avoid the more expensive damage that can happen when worn spindles are left unrepaired. Quality replacement that actually lasts - your mower (and your lawn) will thank you.
Free 30-day returns 
Free 30-day returns
