918-04126B 918-014126 618-04126 918-04125B MTD Cub Cadet 50 Inch Deck Mandrel

Product Overview

This MTD Cub Cadet 50" RZT Deck Mandrel is a direct replacement spindle for zero-turn mower decks. It drives the cutting blade to deliver a precise, even cut across your lawn. Ideal for maintaining the performance of MTD and Cub Cadet RZT mowers with 50-inch decks.

Key Features & Performance

• Precision-engineered to match OEM specifications for MTD and Cub Cadet RZT decks
• Heavy-duty steel construction withstands daily use and debris impact
• Sealed bearings protect against dirt and moisture for longer life
• Includes mounting hardware for easy installation
• Replaces multiple OEM part numbers for simplified servicing

Fitment & Compatibility

• MTD Cub Cadet RZT mowers with 50-inch cutting decks
• Compatible with models using OEM part 918-04126B, 918-014126, 618-04126, and 918-04125B

Common Uses

• Replacing worn or damaged mandrels on zero-turn mowers
• Maintaining cutting quality on large residential and commercial properties
• Restoring blade rotation after bearing failure or impact damage

Technical Specifications

• Part Number(s): 918-04126B, 918-014126, 618-04126, 918-04125B
• Type: Deck Mandrel / Spindle Assembly
• Deck Size: 50 inches
• Construction: Steel with sealed bearings

Frequently Asked Questions

Q: Will this mandrel fit my Cub Cadet RZT if the deck is 54 inches? A: No, this mandrel is specifically designed for 50-inch RZT decks. Using it on a different deck size may cause alignment issues or poor cut quality.

Q: Does the mandrel come with the blade and pulley? A: This listing includes the mandrel assembly only. The blade and pulley are not included but can be reused from your original unit if they are in good condition.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.