Genuine Scag OEM 482879 21" Marbain Mower Cutter Blade (3 Pack) for 61" Decks

What It Is

This is a set of three genuine Scag OEM 21-inch Marbain cutter blades (part #482879) designed specifically for Scag mowers with 61-inch decks. They’re meant for high-production commercial cutting, not residential push mowers.

Fitment & Compatibility

• Deck size: Only for 61-inch Scag decks. These blades are 21 inches long, so they’ll only fit decks designed for that length.
• Model check: Compatible with Scag Turf Tiger, Cheetah, Wildcat, and other 61-inch deck models from the early 2000s onward. Always verify your mower’s serial number and deck part number.
• OEM vs aftermarket: These are genuine Scag parts, so fitment is guaranteed for compatible decks. Aftermarket blades may vary in thickness or hole spacing—stick with OEM if you want exact fit.
• Measurements: Check blade length (21"), center hole diameter (typically 5/8" or 3/4"), and offset. Measure your old blade before buying.

Key Things to Know

• Quality: Made from Marbain steel—holds an edge longer than standard carbon steel but is harder to sharpen. Expect longer life in abrasive conditions.
• Installation: Straightforward bolt-on job. Torque blade bolts to 70-90 ft-lbs. Use a blade lock or block of wood to prevent spinning.
• Common gotcha: The 3-pack saves money vs buying singles, but you must use all three blades of the same type/weight to avoid vibration and uneven cut. Don’t mix with other brands.
• Sharpening: Marbain steel requires a carbide or diamond sharpener. Standard files wear quickly.

Should You Buy It

If you own a Scag with a 61-inch deck and cut commercially or on large properties, this 3-pack is a solid investment for consistent cut quality and longer blade life. Skip it if you have a different deck size or only need one blade—buying the pack won’t save you anything if you can’t use all three.