OCPTY High Lift Blades 50 inch Deck Mower Blades for Rotary 12273 for Toro: 110-6837-03, 112-9759-03, 115-5059-03 for LAWNBOY: 81271 TimeCutter Z5000 74370 74372 74373 74374 74375 74376,3 pack

What It Is

This is a 3-pack of high-lift mower blades designed for 50-inch deck zero-turn mowers, primarily Toro TimeCutter Z5000 series and select LAWNBOY models. The high-lift design increases airflow under the deck for better grass clipping discharge and improved bagging performance compared to standard or low-lift blades.

Fitment & Compatibility

Before buying, verify these three things:

• Deck size: Only fits 50-inch decks. Measure your deck cutting width if unsure.
• Model compatibility: Direct replacement for Toro OEM part numbers 110-6837-03, 112-9759-03, and 115-5059-03. Fits Toro TimeCutter Z5000 models 74370, 74372, 74373, 74374, 74375, 74376, and LAWNBOY 81271.
• Aftermarket fit: OCPTY is a third-party blade. It should match OEM dimensions exactly, but check overall length (likely ~16.5 inches), center hole shape (usually a star or hex), and thickness (typically 0.20–0.25 inches). If your deck uses a different spindle design or blade adapter, these may not fit.

Measure your existing blade length and hole pattern to confirm. Do not assume all 50-inch Toro decks use the same blade.

Key Things to Know

• High lift = more power draw. These blades create more suction, which can strain the engine or belt on older or lower-horsepower mowers. If your machine struggles on thick grass, consider medium-lift blades instead.
• Installation tip: Use a blade-stopping tool or wedge to prevent rotation. Torque bolts to manufacturer spec (typically 70–90 ft-lbs). Over-tightening can strip spindles.
• Balance check: Aftermarket blades sometimes arrive unbalanced. Spin each blade on a balancer or nail before installing. An unbalanced blade causes vibration and premature spindle wear.
• Sharpness: These come sharp but not razor-edged. A quick touch-up with a file or grinder before first use improves cut quality, especially on thick grass.

Should You Buy It

If you own a Toro TimeCutter Z5000 or compatible LAWNBOY with a 50-inch deck and need better bagging or discharge performance, this is a solid budget-friendly option. It’s not for standard lift needs or decks under 50 inches. For casual residential mowing with occasional heavy grass, these are a good value at $24 for three blades.