54-Inch Deck Rebuild Kit for Cub Cadet RZT-S54 KW | 954-04329 Belt

Overview

This 54-inch deck rebuild kit is built for select Cub Cadet RZT-S54 KW and RZTS54KW mower decks using the listed belt, blade, and spindle part numbers.

The kit includes the main wear parts commonly replaced during a mower deck refresh: 3 spindle assemblies, 3 mower blades, and 1 deck drive belt.

This is a good option when your 54-inch mower deck has noisy spindle bearings, worn blades, slipping belts, uneven cut quality, deck vibration, or multiple deck parts that need to be replaced at the same time.

Important: Match your mower model, deck size, blade count, and original deck part numbers before ordering. Many Cub Cadet and MTD decks look similar but use different belts, blades, spindle assemblies, pulley setups, and blade mounts.

Kit Includes

• 3 spindle assemblies
• 3 mower blades
• 1 deck drive belt

Compatible Brands & Model Series

This deck rebuild kit is intended for select 54-inch Cub Cadet RZT-S mower decks using the listed replacement part numbers.

• Cub Cadet: RZT-S54 KW / RZTS54KW 54-inch deck applications
• MTD-built Cub Cadet: select 54-inch deck platforms using the listed belt, blade, and spindle numbers

Fitment note: Model names are provided as fitment clues. Always confirm your 54-inch deck and original deck part numbers before ordering.

Replaces Common Deck Belt Numbers

• Cub Cadet / MTD: 754-04329, 954-04329, 954-04329A
• Supplier Reference: 54-04329

Belt Size: 5/8 inch x 148 inches

Replaces Common Blade Numbers

• Cub Cadet / MTD: 490-110-C143, 742-05056, 742-05056A, 942-05056A
• Additional Reference: 14907

Blade Specs: 18-1/4 inch blade, 3 inch width, .160 inch thickness, 6-point star center hole.

Replaces Common Spindle Assembly Numbers

• Cub Cadet / MTD: 618-06978, 918-06978
• Additional Reference: 285-705

Spindle Specs: 6-1/2 inch overall height, 5-7/16 inch pulley OD, 6-point star blade mount.

Spindle note: Confirm your spindle mounting pattern, blade mount, pulley setup, and deck shell condition before installation.

Before Ordering

Before ordering this 54-inch deck rebuild kit, confirm:

• Your mower uses a 54-inch 3-blade deck
• Your mower is a Cub Cadet RZT-S54 KW or RZTS54KW using the listed part-number path
• Your original belt number matches 954-04329, 754-04329, or 954-04329A
• Your blade numbers match the 742-05056 / 942-05056A blade path
• Your spindle numbers match the 618-06978 / 918-06978 spindle path
• Your blades use a 6-point star center hole
• Your deck shell, belt guides, spindle mounting holes, pulleys, and tension system are in usable condition

Do not install parts until fitment is confirmed. Installed deck parts may not be eligible for return.

Common Symptoms This Kit Helps Fix

• Noisy spindle bearings
• Deck vibration
• Uneven cut quality
• Dull, bent, cracked, or worn blades
• Deck belt slipping, squealing, or jumping off
• Blade wobble or bearing play
• Worn spindle assemblies
• Multiple deck parts worn at the same time

Installation Notes

• Park the mower on a level surface and disconnect the spark plug before working on the deck
• Take photos of the belt routing before removing old parts
• Inspect the deck shell for cracks, wallowed holes, rust damage, or bent mounting areas
• Check spindle mounting bolts, blade bolts, washers, belt guides, idler arms, and tension springs
• Compare the new parts to your original parts before installation
• After installation, rotate the blades by hand with the mower off to confirm there is no contact or binding
• Test the mower at low speed first and listen for vibration, belt tracking issues, squealing, or unusual noise

Why Buy From PTO Direct USA?

• Fast USA shipping
• Fitment-first product descriptions
• Clear part-number routing for mower deck repairs
• Deck parts organized by belts, blades, spindles, pulleys, and rebuild kits
• Support for homeowners, repair shops, and mower owners

Need Help Confirming Fitment?

If you are unsure whether this kit fits your mower, send us your mower model number, deck size, blade count, and photos of your original belt, blades, spindles, mower deck, and mower ID tag before ordering.

FAQ

Does this fit Cub Cadet RZT-S54 KW?

Yes, this kit is intended for select Cub Cadet RZT-S54 KW and RZTS54KW 54-inch deck applications using the listed belt, blade, and spindle part numbers. Confirm your original parts before ordering.

What belt comes in this kit?

This kit includes a deck belt replacing 954-04329, 754-04329, and 954-04329A. The listed belt size is 5/8 inch x 148 inches.

What blades come in this kit?

This kit includes three blades replacing the 742-05056 / 942-05056A blade path. The blades are listed as 18-1/4 inches with a 6-point star center hole.

What spindle numbers does this kit replace?

This kit includes three spindle assemblies replacing the 618-06978 / 918-06978 spindle path. Confirm your original spindle number, pulley setup, and mounting pattern before ordering.

How many blades and spindles are included?

This kit includes 3 mower blades, 3 spindle assemblies, and 1 deck belt.

Can I order this kit by mower appearance?

No. Do not order by appearance alone. Match your mower model, deck size, blade count, belt number, blade number, spindle number, and deck layout whenever possible.

Need individual deck parts instead? Browse mower deck belts, mower blades, spindle assemblies, and deck pulleys and idlers.

Need a different deck setup? Browse the full mower deck parts catalog.