Youxmoto 46" Deck Spindle Rebuild Kit for Cub Cadet/Troy-Bilt LTX1045 LTX1046 — 2 Spindles, 2 Idler Pulleys & 103" Belt

This Youxmoto LTX1045 46" deck spindle rebuild kit replaces two spindle assemblies, two flat idler pulleys, and a 103-inch deck belt to restore cutting performance on compatible Cub Cadet, Troy-Bilt and MTD lawn tractors.

If your 46" mower deck is delivering uneven cuts, unusual vibration, or noisy spindle bearings, replacing worn spindle assemblies and idler pulleys plus the deck belt can bring the deck back to proper tension and alignment. This kit gathers the most commonly failing deck components into one package for models listed below, saving time hunting individual parts.

Which machines does this rebuild kit fit?

This kit is designed for 46" mower decks used on a range of Cub Cadet, Troy-Bilt, Horse and other MTD-based tractors. It fits specific LTX1045 and LTX1046 model years and numerous Troy-Bilt and Horse model numbers—check your deck’s part numbers to confirm compatibility.

• Designed for 46" decks on LTX1045 and LTX1046 model families (listed model codes included).
• Compatible with Troy-Bilt/Horse part references such as 618-04636, 618-04865 and variations.
• Includes belt that replaces MTD/Troy-Bilt 954-04219 / 754-04219 references.

What components are included and what are their specs?

The kit arrives with two complete spindle assemblies, two flat idler pulleys and a single 103-inch deck belt sized for 46" decks. Each spindle assembly has the specified height and mounting features to match MTD-style decks.

• (2) Spindle assemblies compatible with MTD/Troy-Bilt references including 618-04636 and 618-04865.
• Spindle height about 6 6/7" to match factory deck dimensions.
• (2) Flat idler pulleys compatible with MTD part numbers 753-08171, 756-04129 series.
• (1) 103" belt (1/2" x 103") replacing part numbers such as 954-04219 / 754-04219.

How will installing this kit affect deck performance?

Replacing worn spindles and pulleys reduces wobble, restores correct blade-to-blade height, and improves belt tracking. The fresh belt ensures consistent power transfer so blades spin at designed speed with less slipping.

• Reduces vibration from bad bearings or bent spindle shafts.
• Restores even cutting by stabilizing blade mounts and heights.
• Improves belt engagement and reduces premature belt wear.

What should I verify before ordering and installing?

Confirm your tractor’s deck part numbers and model year against the compatibility list; measure the spindle height and verify pulley type matches your current setup. Basic mechanical ability and common shop tools are recommended for safe replacement.

• Check existing spindle reference numbers (618-04636, 618-04865, etc.).
• Measure deck belt length if unsure—this kit provides a 103" belt sized 1/2" wide.
• Ensure you have jack stands, socket set, and torque wrench for installation.

Who is this for: This rebuild kit is for homeowners, landscapers, and small-fleet maintainers who own compatible 46" Cub Cadet, Troy-Bilt, Horse or MTD-based tractors and need a cost-effective, complete replacement of common deck wear parts. It’s ideal when spindles, idlers or the deck belt are visibly worn, noisy, or causing uneven cuts and you want a single-pack solution to restore reliable deck operation.