Deck Spindle with Double Pulley 618-0593 / 618-0595 for MTD Troy-Bilt 46-Inch Decks

Overview

This aftermarket 618-0593 spindle assembly with pulley is a replacement mower deck spindle and pulley setup for select MTD, Troy-Bilt, Cub Cadet, White, Huskee, Yard Machines, Yard-Man, Ranch King, and related 46-inch mower deck applications.

Use this listing when your original spindle assembly number matches 618-0593, 618-0595, 918-0593, 918-0595, or one of the replacement numbers listed below. This assembly has an overall height of 7-13/16 inches and a 5-inch pulley outer diameter.

Key Features

• Product Type: Spindle Assembly with Pulley
• Primary Replacement Number: 618-0593
• Overall Height: 7-13/16 in
• Pulley Outer Diameter: 5 in
• Deck Application: Select 46-inch mower decks
• Mounting Bolts: Not included
• Aftermarket replacement spindle assembly for mower deck belt-drive and blade-drive systems
• Use for compatible MTD-built mower deck applications using the listed spindle replacement path

Compatible Brands & Model Series

Common compatible 46-inch mower deck paths include:

• MTD: White GT2150, MTD Pro, MTD Gold, and related 46-inch deck applications
• Huskee: Select 46-inch deck applications using the 618-0593 / 618-0595 spindle path
• Ranch King: Select 46-inch deck applications
• Yard Machines: Select 46-inch deck applications
• Yard-Man: Select 46-inch deck applications
• Troy-Bilt: GTX2446 and related 46-inch deck applications
• Cub Cadet / Troy-Bilt / MTD: Select mower decks using the 618-0593, 618-0595, 918-0593, or 918-0595 spindle assembly path

Replaces OEM Part Numbers

• MTD: 618-0593, 618-0595, 618-0595A, 618-0595B, 915-0595A, 918-0593, 918-0593A, 918-0595, 918-0595B
• Cub Cadet / Troy-Bilt: 618-0595, 618-0595A, 618-0595B, 918-0593A, 918-0595A, 918-0595B
• Polaris: 4010894
• Stens: 285-865
• Oregon: 82-518

Common Symptoms of a Worn Spindle Assembly

• Grinding, squealing, or rattling noise from the mower deck
• Pulley wobble or visible movement at the spindle shaft
• Deck belt slipping, jumping off, or tracking unevenly
• Blade vibration, uneven cut quality, or excess deck vibration
• Premature deck belt wear caused by pulley or spindle misalignment

Installation Notes

• Mounting bolts are not included with this spindle assembly
• Compare the spindle height, pulley size, mounting pattern, and pulley position to your original assembly before installation
• Inspect the deck belt, blades, belt guides, idlers, and surrounding hardware while the deck is apart
• Confirm belt routing before reinstalling the deck belt
• Do not order by deck size alone; match the original spindle number and deck layout first

Why Buy From PTO Direct USA?

• Fast USA shipping
• Fitment-focused replacement parts support
• Clear part-number matching to help reduce wrong-part orders
• Replacement mower deck parts for homeowners, shops, and landscape crews

Need Help Confirming Fitment?

If you are not sure this is the correct spindle assembly, send us your mower model number, deck size, and the part number from your original spindle or pulley. We can help compare the replacement path before you order.

FAQ

What does this spindle assembly replace?

This spindle assembly replaces the 618-0593, 618-0595, 918-0593, 918-0595, and related MTD-built spindle assembly paths listed above.

Are mounting bolts included?

No. Mounting bolts are not included. Reuse your original hardware only if it is in good condition, or replace the hardware as needed for your mower deck.

Can I order this spindle by deck size only?

No. A 46-inch deck size is only a starting point. Match the original spindle assembly number, pulley size, spindle height, mounting pattern, mower model, and belt routing before ordering.

Why does my mower deck belt keep coming off?

A deck belt may come off because of a worn spindle bearing, pulley wobble, bent idler arm, weak tension spring, damaged belt guide, incorrect belt routing, or the wrong belt size. Inspect the full deck drive system before installing a new spindle assembly.

Need other deck parts for this setup? Browse mower deck belts, mower blades, spindle assemblies, and deck rebuild kits.

Need a different pulley or spindle? Browse the full deck pulleys and idlers collection or our mower deck spindle collection.