Youxmoto 139-3214 117-7439 117 7267 Spindle Assembly Fit for 42" 50" Exmark Toro TimeCutter SS5000 SS4200 SS4235 SS4260 MX5000 MX5050 ，Spindle 121-0751 117-7268 3 Pack

What It Is

This is a 3-pack of spindle assemblies designed to replace the OEM spindles on select 42" and 50" Toro TimeCutter and Exmark zero-turn mowers. Each spindle drives the mower blade and houses the bearings that allow the blade to spin freely. It’s a direct replacement for worn, noisy, or seized spindles.

Fitment & Compatibility

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

• Toro TimeCutter models: SS4200, SS4235, SS4260, SS5000, MX5000, MX5050 (42" and 50" decks only).
• Exmark models: Compatible with select 42" and 50" decks using OEM spindle part numbers 139-3214, 117-7439, 117-7267, 121-0751, or 117-7268.

Check your spindle bolt pattern and shaft diameter. Measure the center-to-center distance of the mounting holes (typically 3.5" on these models) and ensure the shaft diameter matches your blade (usually 1" or 3/4"). If your mower uses a different pattern or shaft size, this kit won’t fit.

OEM cross-reference: This is an aftermarket replacement for OEM Toro/Exmark spindles. It is not a genuine Toro part, so verify the housing shape and bearing type match your deck.

Key Things to Know

• Quality variance: At $61.99 for three, these are budget-friendly. Some users report shorter bearing life than OEM (2-3 seasons vs. 4-5). Inspect bearings for smooth rotation before installing.
• Installation difficulty: Moderate. You’ll need a socket set, torque wrench (40-50 ft-lbs for mounting bolts), and a blade removal tool. The hardest part is breaking loose rusted bolts on the old spindles.
• Common gotchas: The included bolts may be slightly different thread pitch than OEM. Always reuse your original mounting hardware if possible. Also, these spindles are not greaseable—once the bearings fail, you replace the whole unit.
• Deck alignment: After installation, check blade tip height across the deck to ensure even cutting. Spindle housing warpage can cause uneven mowing.

Should You Buy It

Buy this pack if you have a Toro TimeCutter or compatible Exmark with a 42" or 50" deck and need a low-cost, quick fix for worn spindles. It’s ideal for budget-conscious homeowners who can handle a DIY swap and don’t need commercial-grade longevity. Skip it if you’re a pro landscaper or want greaseable spindles that last 5+ years—invest in OEM or higher-end aftermarket units instead.