8TEN Long Shaft Spindle for Toro 38 42 inch Deck Timecutter Z420 ZD380 XL 380H 80-4341 80-4380 88-4510 2 Pack

What It Is

This is a replacement spindle assembly for zero-turn mowers, specifically designed for Toro Timecutter and ZD models with 38- or 42-inch decks. It drives the blade and supports the pulley, and this 2-pack covers both spindles on a two-blade deck.

Fitment & Compatibility

Check your deck size and model: Fits Toro Timecutter Z420 (38" and 42" decks), ZD380, XL 380H, and comparable models. OEM cross-references: Replaces Toro part numbers 80-4341, 80-4380, and 88-4510. Measurements: Shaft length is approximately 4.5 inches from the housing to the blade mount. Bearing housing: 3.25 inches across (bolt pattern). Blade bolt: Standard 5/8-inch center hole. Not compatible with 50- or 60-inch decks or older Toro models with different shaft lengths. Verify your model number and deck serial before ordering.

Key Things to Know

• Quality: Aftermarket, but uses sealed ball bearings and a hardened shaft. Should match OEM durability for residential use.
• Installation: Moderate difficulty. Requires removing the deck, belt, pulley, and old spindle. You’ll need a socket set, a puller for the pulley, and potentially a breaker bar for stubborn bolts.
• Common gotcha: The pulley is not included. Reuse your existing pulley and check for wear. Also, the blade bolt torque spec is 70–90 ft-lbs (check your manual).
• Warranty: 8TEN typically offers a 1-year limited warranty. Keep your receipt.

Should You Buy It

If you own a Toro Timecutter or ZD with a 38- or 42-inch deck and need to replace both spindles at once (common after bearing wear or blade strike), this 2-pack is a cost-effective, solid aftermarket option. It’s not for commercial use or odd-sized decks, but for residential users, it’s a reliable drop-in replacement at roughly half the OEM price.