Ferris Genuine OEM 48" Deck Blade Set for 5601252, 5901704, 5901705, 5901707, 5901729, 5901740, 5901775, 5901813 Lawn Mowers / 5105512S

What It Is

This Ferris Genuine OEM 48" deck blade set is a factory-replacement blade kit designed for Ferris commercial zero-turn mowers with a 48-inch cutting deck. It includes three blades (part numbers 5105512S and superseded 5601252) for a clean, even cut on turf and grass.

Fitment & Compatibility

Before buying, confirm your Ferris mower has a 48-inch deck (not 52" or 61") and that your current blade part number matches one of these: 5601252, 5901704, 5901705, 5901707, 5901729, 5901740, 5901775, 5901813. This is a genuine OEM set, not aftermarket. Measure your existing blade length (should be ~16" per blade) and center hole size (typically 1" with a 5-point star drive). Check your deck’s blade spindle count—this set fits 3-blade decks only. Models include Ferris IS3100Z, IS3200Z, and similar commercial series with a 48" fabricated deck.

Key Things to Know

• Quality: OEM Ferris blades are heat-treated, hardened steel with a balanced design for less vibration and longer edge life versus generic blades. Expect 25-50 hours of cutting before dulling.
• Installation difficulty: Easy for DIY with a socket wrench and blade removal tool. Use a torque wrench to tighten spindle bolts to 70-80 ft-lbs (check your manual). Never reuse old lock washers.
• Common gotcha: The 5-point star drive center hole is specific to Ferris decks—will not fit standard 1" round or double-hole blades. Verify your spindles match before buying.
• Sharpening: Can be sharpened 2-3 times, but replace if bent or nicked. Always replace as a full set to maintain balance and cut quality.

Should You Buy It

This set is the right choice if you own a Ferris 48" commercial zero-turn and want a direct, guaranteed fit with factory-quality steel and balance. It’s ideal for operators who value minimal downtime and consistent cut over saving a few dollars on aftermarket blades. If you have a different brand deck or a non-Ferris spindle, skip this.