9058 Mower Spindle Assembly for Swisher Pull Behind Mowers 5.75 inch Center Shaft Blade Drive Replacement, Replaces Swisher OEM 9058

What It Is

This spindle assembly is the rotating hub that drives the mower blade on Swisher pull-behind mowers. It replaces a worn or failed OEM 9058 spindle, restoring blade rotation on trail-type mowers with a 5.75-inch center shaft.

Fitment & Compatibility

• Deck size: Fits Swisher pull-behind mowers with 44-inch, 50-inch, and 60-inch decks (common on models like LRC60, LRC50, and LRC44).
• OEM reference: Direct replacement for Swisher OEM part number 9058.
• Measurements: 5.75-inch center shaft length from mounting base to blade mounting surface. Shaft diameter is 1 inch. Blade mounting holes are on a 3-inch center.
• What to check: Verify your spindle has the same shaft length and mounting bolt pattern (3-inch center). Also confirm your deck has a 4-bolt mounting flange pattern (4.5-inch bolt circle). If your current spindle has a different shaft length, this won’t fit.

Key Things to Know

• Quality: Aftermarket part, not OEM Swisher. Some users report shorter bearing life than original. Inspect for rough rotation before installing.
• Installation: Moderate difficulty. Requires removing the blade, pulley, and old spindle. Use a torque wrench on the blade bolt (45-55 ft-lbs). Grease fittings are present—lubricate before first use.
• Common gotcha: The included bolts may be slightly different thread pitch than original. Check your deck’s mounting holes (likely 5/16-18). If they don’t match, reuse your original bolts.
• Blade compatibility: Uses standard Swisher blades with a 3-inch center hole and 1-inch shaft bore. Confirm your blade’s center hole is 1 inch—some aftermarket blades have a 7/8-inch bore.

Should You Buy It

If you need a quick, affordable replacement for a worn Swisher spindle and you’re comfortable with basic mechanical work, this will get your mower running again. It’s not as durable as OEM, so it’s best for occasional use or as a temporary fix while sourcing a higher-quality part. For heavy commercial use, consider an OEM replacement.