TENGMUJX 54-Inch Mower Deck Spindle Assembly 3-Pack – Direct-Fit Replaces 618-06978, 24-Month Warranty

The TENGMUJX 54-inch mower deck spindle assembly 3-pack replaces OEM 618-06978 and 918-06978 to restore cutting performance on compatible Cub Cadet, Troy-Bilt, MTD and Craftsman decks.

If your 54" deck is noisy, vibrating, or no longer cutting cleanly, replacing worn spindles is a common, cost-effective repair. This three-piece spindle set is made to match factory fit and mounting patterns for a wide range of 54-inch decks, letting you get back to regular mowing without modifying the deck or spindles.

What models will these spindle assemblies fit?

These spindles are engineered to be direct-fit replacements for many popular zero-turns and lawn tractors that use the 54" deck footprint. They are compatible with specified Cub Cadet, Troy-Bilt, MTD and Craftsman models and match common OEM part numbers listed by manufacturers.

• Fits Cub Cadet RZT-54, S54, L54, ZT1-54, ZT2-54, XT1-ST54, GT54, XT2-54, GX54 series decks
• Compatible with Troy-Bilt TB2454, Mustang XP and Bronco 54-series lawn tractors
• Works with MTD and Craftsman 54" deck models including T8400, G8400/G8600 lineups
• Replaces OEM numbers 618-06978, 918-06978 and aftermarket Stens 285-705

How does installing these spindles improve deck performance?

Worn or damaged spindles cause wobble, uneven deck height, belt wear and poor cutting quality. Installing new spindles reduces vibration, stabilizes blade rotation and restores uniform blade-to-deck clearance for a cleaner cut.

• Reduces blade wobble and vibration at mowing speeds
• Helps prevent premature belt and pulley wear
• Restores consistent blade tip height across the deck for even cutting
• Returns deck to factory mounting geometry for reliable operation

What should I know before ordering and fitting these parts?

Confirm your deck size, model and OEM part numbers before purchase to ensure compatibility. Basic hand tools and safe deck support are required for replacement; follow your mower’s service manual for proper removal and torque specs.

• Verify deck is 54 inches and check for OEM part numbers 618-06978 or 918-06978
• Gather wrenches, sockets and jack/support blocks to secure the deck during work
• Inspect blades, pulleys and belts while the spindles are removed — replace as needed
• Re-torque spindle fasteners to manufacturer specs and test at low speed before regular use

What warranty and support come with the TENGMUJX spindle set?

TENGMUJX offers customer support and a 24-month after-sales warranty to address defects or fitment issues. If a part is defective or doesn’t match your deck, contact seller support for guidance and resolution within the warranty period.

• 24-month after-sales warranty for peace of mind
• Professional manufacturer support and return guidance
• Responsive customer service with assistance for fitment questions
• Three-spindle pack for full deck replacement or spare parts

Who is this for: This TENGMUJX 54" spindle assembly 3-pack is intended for homeowners, landscapers, and repair shops maintaining 54-inch Cub Cadet, Troy-Bilt, MTD or Craftsman decks that require a direct spindle replacement. It suits anyone seeking a matched set to fix vibration, poor cutting, or belt issues without modifying the deck. If you need OEM-compatible spindles to return a 54" deck to reliable mowing, this kit provides the parts and support to complete the job.