Set of 6 New Blade Fits Woods P990, RM90, RM990 Models Interchangeable with 24590KT, 5WP24590, 5WP24590-A, 91-767

What It Is

This is a set of 6 new mower blades designed for Woods P990, RM90, and RM990 series commercial finish mowers. They are ideal for large-area turf maintenance, such as golf courses, sports fields, or estate lawns, where a clean, even cut is critical.

Fitment & Compatibility

• Exact models: Woods P990, RM90, RM990 (check your deck’s model tag – not all RM-series use the same blade).
• OEM cross-references: Interchangeable with Woods part numbers 24590KT, 5WP24590, 5WP24590-A, and 91-767.
• Measure before buying: Blade length is typically 20.5 inches, with a center hole diameter of 1 inch and a thickness of 0.25 inches. Verify these dimensions on your current blade.
• Deck size: This set fits 60-inch and 72-inch decks that use 6 blades (usually three pairs). Confirm your deck has 6 blade spindles.
• Aftermarket note: These are not OEM Woods blades, so check that the lift and sail angle match your originals for proper grass discharge and cut quality.

Key Things to Know

• Quality: Aftermarket blades can vary in steel hardness and balance. Inspect edges for sharpness and consistent thickness; soft steel dulls quickly on sandy or rocky turf.
• Installation difficulty: Moderate. You’ll need a torque wrench (blade bolt torque: 70–90 ft-lbs typical), a blade removal tool or block of wood to prevent spinning, and safety glasses. Always disconnect the spark plug.
• Common gotchas: Blade orientation is critical – lift edges must face upward toward the deck. Mixing old and new blades on the same deck causes vibration and uneven cut. Replace all 6 at once.
• Wear check: If your old blades are bent or have large nicks, the spindle shaft may also be damaged – inspect before installing new blades.

Should You Buy It

Buy this set if you own a Woods P990, RM90, or RM990 and need a cost-effective replacement for worn or dull blades, especially for large, flat lawns where a consistent finish is important. It’s a solid aftermarket option, but verify your deck size and blade measurements first. If you cut in rocky or debris-heavy conditions, consider OEM blades for potentially longer life.