3-Pack Spindle Assembly Kit 918-04134D / 618-0240 for MTD 46-Inch Deck

Overview

This aftermarket 3-pack spindle assembly kit is a mixed replacement-style mower deck spindle set for select MTD, Troy-Bilt, Yard Machines, Yard-Man, Huskee, White Outdoor, Columbia, and related 46-inch mower deck applications.

This is one fixed package that includes 1 main spindle assembly and 2 outer spindle assemblies. Match your original main spindle number and outer spindle numbers before ordering.

Key Features

• Aftermarket replacement-style 46-inch deck spindle kit
• Product Type: 3-Pack Spindle Assembly Kit
• Main Spindle Path: 918-04134D, 618-04134D
• Outer Spindle Path: 618-0240, 918-0240, 618-0430
• Common Deck Reference: 46 inch
• Package Includes: 1 main spindle assembly and 2 outer spindle assemblies
• Built around the full 46-inch deck spindle layout to reduce fitment confusion

Compatible Brands & Model Series

This 918-04134D / 618-0240 spindle kit is associated with select MTD-built 46-inch mower decks that use one main spindle path and two outer spindle paths.

Common brand paths include:

• MTD 46-inch mower decks
• Troy-Bilt 46-inch mower decks
• Yard Machines 46-inch mower decks
• Yard-Man 46-inch mower decks
• Huskee 46-inch mower decks
• White Outdoor 46-inch mower decks
• Columbia 46-inch mower decks where the original spindle numbers match

Common model-series references include:

• MTD LT5 and RT99 with 46-inch deck
• Yard Machines LT5 and RT99 with 46-inch deck
• Yard-Man LT5 and RT99 with 46-inch deck
• MTD LT-546G, LT-546H, LT-946G, and LT-946H model paths
• Troy-Bilt Super Bronco 46-inch deck paths
• Related 46-inch MTD-built decks using the 918-04134D / 618-04134D and 618-0240 / 918-0240 spindle combination

Verify your part numbers before ordering.

Replaces OEM Part Numbers

• Main / Double-Pulley Spindle Path: 918-04134D, 618-04134D, 918-04134C, 618-04134C, 918-04134B, 618-04134B, 918-04134A, 618-04134A, 918-04134, 618-04134
• Outer Spindle Path: 618-0240, 618-0240A, 618-0240B, 618-0240C, 618-0241, 618-0430, 618-0430A, 618-0430B, 618-0430C, 918-0240, 918-0240A, 918-0240C, 918-0241B
• Aftermarket Main Spindle Cross-Reference: Stens 285-748

What’s Included

• 1 main spindle assembly replacing the 918-04134D / 618-04134D spindle path
• 2 outer spindle assemblies replacing the 618-0240 / 918-0240 / 618-0430 spindle path
• Use the product image to confirm exact contents before checkout

Need Only the Main Spindle?

If you only need the 918-04134D / 618-04134D main spindle path, see the single 918-04134D spindle assembly.

Common Symptoms / When to Replace

• Mower deck spindle is noisy, loose, seized, or wobbling
• Blade has excessive play at one or more spindle shafts
• Deck vibration increases during blade engagement
• Main spindle, outer spindle, shaft, or bearing area is worn or damaged
• Original deck layout uses one 918-04134D / 618-04134D spindle path and two 618-0240 / 918-0240 outer spindle paths

Quick Ship Fulfillment

This item may ship directly from one of our trusted U.S. distribution partners to help reduce transit time. Packaging, labeling, or warehouse origin may vary, but the part will match the replacement numbers, fitment notes, and specifications shown in this listing.

Why Buy From PTO Direct USA

• Fitment-first product organization by spindle position and replacement part-number path
• Separate listing for the mixed 3-spindle deck layout to reduce buyer confusion
• Clear MTD, Troy-Bilt, Yard Machines, Yard-Man, Huskee, White Outdoor, and Columbia 46-inch deck replacement path
• U.S.-focused fulfillment options for faster delivery when available

Need a Custom Package?

Need a different combination of parts? Email us the part type and part numbers you need, such as spindle assemblies, blades, belts, pulleys, reinforcement rings, bearings, or hardware. We can review the part-number path and quote a custom package when available.

FAQ

Is this kit three identical spindle assemblies?

No. This is a mixed 3-spindle kit. It includes 1 main spindle assembly and 2 outer spindle assemblies.

What is the main spindle path in this kit?

The main spindle path includes 918-04134D, 618-04134D, and related 918-04134 / 618-04134 versions.

What is the outer spindle path in this kit?

The outer spindle path includes 618-0240, 918-0240, 618-0430, and related replacement numbers.

Does this fit all 46-inch MTD decks?

No. This kit is for select 46-inch MTD-built decks that use the listed mixed spindle layout. Match your original spindle numbers before ordering.

Can I use this instead of buying three 918-04134D spindles?

Only if your deck uses one 918-04134D / 618-04134D main spindle and two 618-0240 / 918-0240 outer spindles. Do not substitute this kit based on deck size alone.

Can I order by mower model or deck size only?

No. Mower model and deck size alone are not enough. Match the original spindle numbers first, then confirm deck layout, spindle positions, mounting pattern, pulley setup, blade mount, hardware, and belt routing before ordering.