110-6837-03 Mulching Blades Compatible with Toro 50" Deck, 112-9759-03 Mower Blades Compatible with 50" Toro TimeCutter Z5000 Series, Replace for 112-9759, 115-5059-03, 115-5059, 3 Pack

What It Is

This is a 3-pack of mulching blades designed for 50-inch Toro zero-turn mowers, specifically the TimeCutter Z5000 series. They replace OEM part numbers 112-9759, 115-5059-03, and 115-5059, turning clippings into fine mulch for lawn feeding.

Fitment & Compatibility

Before buying, verify your deck is exactly 50 inches—measure from cutting edge to cutting edge. These fit Toro TimeCutter Z5000, Z5400, and Z5500 models with 50-inch decks. They are aftermarket replacements, not genuine Toro, so check blade dimensions: center hole diameter (typically 1-inch for these), overall length (about 20.5 inches), and thickness (0.25 inches). Confirm your spindle bolt pattern matches—these use a 5/16-inch bolt hole. Cross-reference your current blade’s part number against 112-9759, 115-5059-03, or 115-5059. Do not assume fit for other Toro models (e.g., TimeCutter 42-inch or 60-inch decks).

Key Things to Know

• Mulching vs. standard: These blades have a higher lift and curved design to recirculate clippings. They won’t work well for bagging or side-discharge—expect clumping if used on wet grass.
• Installation difficulty: Moderate. You’ll need a socket wrench and a torque wrench (target 55–65 ft-lbs). Use a blade lock or block of wood to secure the spindle. Always disconnect the spark plug first.
• Balance check: Aftermarket blades can be slightly off-balance. Spin them on a blade balancer before installing to avoid vibration and spindle damage.
• Sharpness: They arrive sharp but dull faster than OEM Toro blades (typically 3–5 mows vs. 6–8). Have a file or sharpener ready.

Should You Buy It

Buy these if you’re on a budget and only mulch your lawn (no bagging) with a 50-inch Toro TimeCutter Z5000 series. They’re a decent value for the price, but expect slightly shorter lifespan and more frequent sharpening versus OEM. If you need precise balance or run a commercial operation, stick with genuine Toro blades.