Replaces Ferris 6PK Oregon 91-638 Notched Blades fits on Scag, Turf Tiger, Cheetah 61" Cut 482879, 482881

What It Is

This is a set of three notched replacement blades designed for 61-inch commercial zero-turn mowers, specifically compatible with Ferris, Scag Turf Tiger, and Scag Cheetah models. It replaces OEM part numbers 6PK Oregon 91-638, Ferris 482879, and 482881, and is intended for high-use mowing on large properties, sports fields, or commercial landscaping.

Fitment & Compatibility

Before buying, verify these three points:

• Deck size: This set fits 61-inch cutting decks only. Not for 52-inch or 72-inch decks.
• Brand/model: Confirmed fit on Scag Turf Tiger and Cheetah with 61" decks using OEM 482879/482881 blades. Also fits Ferris models that use the 6PK Oregon 91-638 pattern. Not universal – check your deck’s blade pattern (three-hole center mount, not single-hole).
• Measurements: Each blade is approximately 20.5 inches long, 2.5 inches wide, with a 0.25-inch thickness and a 3/4-inch center hole. Notched design matches OEM lift and cut profile. Compare against your current blade before ordering – slight variations may affect balance.

Key Things to Know

• Quality vs. OEM: EGO blades are aftermarket, not Ferris or Scag branded. They’re typically heat-treated steel with a durable coating, but may not match OEM hardness. Expect similar life to OEM in residential use; commercial users may see faster dulling.
• Installation: Straightforward swap – remove blade bolt, replace blade, torque to 70-90 ft-lbs. Use a blade lock or block of wood to prevent spinning. Notched edges require correct orientation (notch faces up toward deck).
• Common gotchas: Balance is critical – these are sold as a set, but always check each blade on a balancer. Uneven notches can cause vibration. Also, the EGO brand here is not the same as EGO battery mowers; it’s a separate aftermarket line.
• Price point: At $71.25 for three blades, it’s competitive with OEM (often $90-120/set) but cheaper than premium aftermarket like Oregon (around $80-100).

Should You Buy It

Buy this set if you own a Scag Turf Tiger or Cheetah with a 61" deck and want a budget-friendly replacement that performs well for residential or light commercial mowing. Skip it if you need maximum blade longevity for daily commercial use or if your deck uses a different blade pattern (e.g., single-hole or 60-inch decks). For the price, it’s a solid value for most users.