Mower Spindle Assembly With Bearings - Replaces 4165023, 4171231, 4115850

If your mower deck is shaking or the blade isn't spinning true, a bad spindle might be the culprit.

This Gurdtopo spindle assembly is a direct replacement for a bunch of common numbers: 4165023, 4171231, and 4115850.

It comes with the bearings already installed—and they say it's an upgraded bearing, so hopefully it lasts longer than the factory one.

It's a single spindle, silver in color, and measures about 6 inches tall by 7.5 inches wide.

It's a 12V system part, which is standard for most riding mowers.

Gurdtopo offers a 6-month warranty on it, so they stand behind it.

If you've got a deck with a bad spindle, swapping in this whole unit is way easier than pressing old bearings out.