Oregon 18" Mower Blades 6-Pack — Replacement for Ferris 5101756s, 5/8" Hole & 1" Lift

Oregon 6-pack 91-622 replacement mower blades provide OEM-fit cutting performance for Ferris decks that use part number 5101756s, delivering durable, balanced 18-inch blades for clean, consistent mowing.

If your Ferris mower or multi-deck setup needs matched replacement blades, this six-pack gives you multiple spares with the same geometry and hole pattern as the original equipment. These are full-length 18" blades with a 5/8" center hole, engineered by Oregon to match the lift, thickness, and offset that Ferris specified for effective grass discharge and even wear across the cutting surface.

What dimensions and mounting pattern do these blades use?

These Oregon 91-622 blades use standard measurements so they mount directly where Ferris 5101756s blades would. They’re made to replace blades on both 36" and 52" deck arrangements where that part number applies.

• Overall length: 18 inches
• Blade width: 2.50 inches
• Material thickness: 0.203 inches
• Center mounting hole: 5/8 inch diameter
• Lift: 1 inch with manufacturer-matched offset

How do these blades affect cut quality and grass discharge?

These blades replicate the lift and cutting radius Ferris designed for, helping maintain even airflow through the deck and a uniform cut stripe pattern. Properly balanced blades reduce vibration and help the mower preserve engine and spindle components over time.

• 1" lift profile for effective clippings suspension and discharge
• Matched offset to maintain the original blade-to-deck clearance
• Balanced factory geometry for reduced vibration
• Thicker edge body (0.203") resists bending under load

Will these blades fit my Ferris model and multiple deck widths?

Yes — they’re sold as a 6-pack intended to replace multiple Ferris blades with the 5101756s designation. The package can service different deck widths, commonly used across 36" and 52" cutting configurations where those part numbers are specified.

• Direct replacement for Ferris part #5101756s
• Supplies multiple spindles or spare blades for 36" and 52" decks
• Same hole pattern and offset for bolt-on installation
• Ideal for routine maintenance cycles to replace blades in sets

How should I install and maintain these replacement blades?

Installation is straightforward if you follow standard mower safety and torque practices: disconnect spark, support the deck, and use the correct fasteners and torque values shown in your Ferris manual. Regular sharpening and inspection for nicks or bends will extend blade life and keep cutting performance steady.

• Always disconnect spark plug before working under deck
• Use Ferris-specified bolts and torque settings for secure mounting
• Sharpen edges evenly and check for chips or warping
• Replace blades in matched sets to maintain balance

Who is this for: Landscapers, property owners, and maintenance crews who run Ferris zero-turns or multi-deck mowers and need a reliable set of like-for-like replacement blades. This Oregon six-pack suits anyone who wants OEM-compatible parts to restore cut quality, reduce vibration, and keep multiple decks serviced without sourcing individual blades repeatedly.