482878 Scag OEM Mower Blade

What It Is

The Scag OEM 482878 mower blade is a factory-replacement cutting blade designed for Scag commercial zero-turn mowers with 48-inch and 52-inch decks. It’s intended for high-use, professional-grade mowing where consistent cut quality and durability are priorities.

Fitment & Compatibility

Before buying, confirm your deck model and blade dimensions. The 482878 blade is 18.25 inches long, 2.5 inches wide, with a 5/8-inch center hole and a 0.25-inch thickness. It fits Scag decks using two-blade setups on 48-inch (e.g., Turf Tiger, Cheetah, Wildcat) and 52-inch models—check your deck’s blade count. This is an OEM part, so it matches Scag’s factory specs exactly. If you have a different brand (e.g., John Deere, Exmark), this won’t fit without modification. Measure your current blade length, width, and hole size to verify compatibility. Use your mower’s serial number or deck model tag to cross-reference.

Key Things to Know

• Quality: OEM Scag blades are heat-treated and balanced for commercial use, offering longer life than many aftermarket options. The 3.4 rating may reflect occasional shipping damage (bent blades) rather than performance issues.
• Installation: Straightforward if you have a torque wrench. Bolt torque is typically 70–90 ft-lbs; overtightening can strip threads. Use a blade removal tool to prevent spinning.
• Common Gotchas: Blades can arrive with minor coating imperfections—inspect before installing. Aftermarket blades are cheaper but may require rebalancing or wear faster under heavy use.
• Sharpening: These are not “multipurpose” blades; they’re designed for a clean cut. Sharpen regularly (every 10–15 hours of mowing) to avoid ragged grass.

Should You Buy It

If you own a Scag commercial mower and want a guaranteed fit with no guesswork, this OEM blade is a solid choice. It’s ideal for professionals or homeowners who mow large, thick lawns frequently. For light residential use on smaller decks, an aftermarket blade may save money, but you’ll sacrifice longevity and cut consistency.