Stens 285-847 Spindle Assembly

What It Is

The Stens 285-847 Spindle Assembly is a replacement spindle for the center blade on a lawn mower deck. It’s designed for residential and commercial zero-turn mowers and tractors, typically used on 42” to 72” decks where a three-spindle setup is common.

Fitment & Compatibility

Before buying, verify these specifics:

• Deck size: Fits most 42”–72” three-blade decks, but measure your spindle shaft diameter (typically 5/8” or 3/4”) and housing bolt pattern (usually 3-bolt or 4-bolt). The 285-847 uses a 3-bolt pattern.
• Brand/model: Compatible with many brands including Husqvarna, Poulan, Craftsman, AYP, and some MTD models. Cross-references OEM part numbers like 532185847, 185847, and 185847X.
• OEM vs aftermarket: This is a high-quality aftermarket replacement, not OEM. It matches OEM specs for most common decks but may not fit older or odd-size spindles.
• Measurements: Check spindle shaft length (approx. 3.5”) and housing diameter (approx. 4”). Measure your old spindle before ordering.

Key Things to Know

• Quality: Good value for money, but some users report the bearings are sealed and pre-greased, so you can’t regrease them. Expect 2–4 seasons of typical use.
• Installation difficulty: Moderate. You’ll need a socket set, a torque wrench (tighten to 30–40 ft-lbs), and possibly a puller if the old spindle is seized. Remove the deck for easier access.
• Common gotchas: The spindle shaft may have a slightly different keyway alignment than some OEM versions, requiring you to file or adjust the blade adapter. Also, check that your blade bolt pattern matches (usually 5-point star or 6-point star).
• Warranty: Stens offers a 1-year warranty, but keep your receipt—some retailers require it for returns.

Should You Buy It

Buy it if you need a reliable, budget-friendly replacement for a worn center spindle on a common residential or light-commercial mower deck. It’s a solid choice for DIYers who can handle basic mechanical work. Skip it if you need an exact OEM match for a rare or heavy-duty commercial deck, or if you prefer a greasable spindle for longer life.