3 Pack 139-3214 Spindle Assembly with 125-5575 Pulley 119-8820 Belt 1/2x142 Replaces 121-0751 117-7439 117-7267 117-7268 for Toro Timecutter 50" SS5000 MX5060 MX5000 MX5050 SS5060 Mowers

What It Is

This 3-pack includes spindle assemblies, a pulley, and a belt designed for Toro Timecutter zero-turn mowers with 50-inch decks. It replaces the factory blade drive system components on models like the SS5000, MX5060, and related MX/SS series, enabling blade rotation and deck engagement.

Fitment & Compatibility

Before buying, confirm your mower has a 50-inch deck (not 42" or 54"). This kit fits Toro Timecutter models SS5000, SS5060, MX5000, MX5050, and MX5060. It replaces OEM part numbers 121-0751, 117-7439, 117-7267, and 117-7268. The belt is 1/2" wide x 142" long (cross-check against your original belt length). The spindle assemblies include the 125-5575 pulley. If your deck uses a different pulley or belt length, this kit won’t work. Verify your mower’s model number on the frame or under the seat—do not rely on deck size alone.

Key Things to Know

• Quality: Aftermarket, not OEM Toro. Reviews average 4.4/5, but some users report shorter spindle bearing life compared to genuine parts. Inspect pulleys for wobble before installing.
• Installation: Moderate difficulty. You’ll need a socket set, wrench, and possibly a puller for stuck spindles. Expect 1–2 hours for a full swap. The belt routing must match your deck diagram—double-check the idler pulley path.
• Common gotcha: The 3-pack includes only three spindles. Some 50" decks use four spindles (e.g., some SS5000 variants). Count your existing spindles before ordering. If you need four, this kit is incomplete.
• Belt note: The included 119-8820 belt (1/2x142) is a direct replacement for the OEM belt on listed models. If your deck uses a different belt length, you’ll need to source one separately.

Should You Buy It

This is a solid budget option for Toro Timecutter owners with a 50-inch deck who need to replace worn spindles and belt simultaneously. It’s best for DIYers comfortable with moderate mechanical work. Skip it if you prefer OEM durability, need four spindles, or have a different deck size—buy genuine Toro parts or a deck-specific kit instead.