Parts Camp Deck Spindle Assembly for Toro TimeCutter SS5000 SS4200 4235 4260 Exmark Quest Replaces OEM 117-7439 121-0751 117-7268 117-7267 Stens 285-923 - Heavy Duty Mower Deck Parts

What It Is

This is a heavy-duty deck spindle assembly that drives the mower blades on select Toro TimeCutter and Exmark Quest zero-turn mowers. It replaces worn or failed OEM spindles to restore cutting performance.

Fitment & Compatibility

Before buying, verify your mower model and deck size. This fits:

• Toro TimeCutter: SS5000, SS4200, SS4235, SS4260 (with 50-inch or 42-inch decks; check your deck serial tag)
• Exmark Quest: Select models using the same spindle (confirm via your deck part diagram)
• Replaces OEM numbers: 117-7439, 121-0751, 117-7268, 117-7267; also Stens 285-923

Checklist:

• Measure the spindle shaft diameter (should be 1 inch) and overall height (approx. 5.5 inches).
• Count the bolt pattern (typically 3 bolts on a triangular flange).
• Verify your deck serial number matches any of the listed OEM cross-references. If your deck uses a different spindle, this won’t fit.

Key Things to Know

• Build quality: Aftermarket heavy-duty design with sealed bearings; many users report it lasts as long or longer than OEM at a lower price.
• Installation difficulty: Moderate. You’ll need basic tools (socket set, torque wrench) and may need to remove the deck or belt. Reuse the original pulley and hardware unless damaged.
• Common gotcha: The spindle may come with a pre-installed grease fitting; if not, add a small amount of lithium grease before mounting. Over-tightening the nut can warp the housing.
• Noise check: Spin the spindle by hand before installing—it should rotate smoothly with no grinding or play.

Should You Buy It

If you own a compatible Toro TimeCutter or Exmark Quest and need a reliable spindle replacement without paying OEM prices, this is a solid choice. It’s especially good for heavy-use mowers or those over 3 years old where OEM spindles commonly fail. Skip it if you need an exact OEM match for warranty purposes or if your deck uses a non-standard spindle design.