Oregon 6PK 91-628 High Lift Blades for 60" Ferris 481712, 5020842, 5101755

What It Is

The Oregon 6PK 91-628 is a set of six high-lift replacement blades designed for 60-inch Ferris zero-turn mowers used in commercial or heavy residential cutting. High-lift blades create more upward airflow to improve grass clipping discharge and bagging performance, especially in tall or wet grass.

Fitment & Compatibility

Before buying, confirm your mower has a 60-inch deck—these blades will not fit smaller or larger decks. They are direct replacements for Ferris OEM part numbers 481712, 5020842, and 5101755, and fit most Ferris models with those specs. Measure your existing blade length (should be ~20.5 inches), center hole diameter (typically 1 inch), and thickness (about 0.203 inches) to match. Aftermarket Oregon blades are a cost-effective alternative to OEM, but always check that the blade shape and lift angle match your deck design (e.g., side-discharge vs. mulching). Verify your deck’s spindle pattern—these blades use a standard 5-point star center hole.

Key Things to Know

• Quality & Durability: Oregon blades are heat-treated and coated for corrosion resistance, but high-lift designs wear faster in sandy or abrasive conditions.
• Installation Difficulty: Moderate—requires a blade removal tool or impact wrench. Torque spindle nuts to 70-90 ft-lbs; over-tightening can strip threads.
• Common Gotchas: High-lift blades increase engine load and may reduce fuel efficiency or slightly raise noise levels. They are not ideal for mulching or dry, sparse grass (can cause scalping).
• Balance Check: Always balance the set after installation to prevent vibration and spindle damage.

Should You Buy It

If you own a 60-inch Ferris mower and need better lifting power for bagging or side-discharging thick, damp grass, this six-pack offers solid value over OEM parts. It’s not for mulching or fine lawns—choose standard or low-lift blades instead.