AKM 918-05078 618-05078 Spindle Assembly for MTD Cub Cadet 46 inch Deck 618-05078A 918-05078A Stens 285-167 80-11-798 ZT-S46 CP 30-8024 Craftsman Z6400 Troy-Bilt PRE-TAPPED Holes Screws Included in

What It Is

This is a pre-assembled spindle assembly designed for 46-inch MTD, Cub Cadet, and Troy-Bilt zero-turn and riding mower decks. It houses the blade spindle bearings and pulley, enabling the blade to spin freely and cut grass.

Fitment & Compatibility

Check these three things before buying:

• Deck size: Fits 46-inch cutting decks only. Measure your deck if unsure.
• OEM cross-references: Replaces MTD 918-05078, 618-05078, 918-05078A, 618-05078A. Also matches Stens 285-167, Oregon 80-11-798, Rotary 30-8024, and ZT-S46 CP.
• Machine models: Works on Cub Cadet ZT1 46, ZT2 46, XT1/XT2/XT3 46-inch; Craftsman Z6400, ZT7000; Troy-Bilt Mustang 46, Bronco 46; and many MTD 46-inch zero-turns and lawn tractors.
• Pre-tapped holes: Holes are already threaded, and mounting screws are included—no need to tap or buy separate hardware.

What to measure: Bolt pattern is 3.75 inches center-to-center on the mounting flange. Pulley diameter is 4.5 inches. Shaft diameter is 5/8 inch. Confirm these match your old spindle.

Key Things to Know

• Quality: Users report good bearing quality and smooth operation. Not OEM, but a solid aftermarket replacement at half the price.
• Installation: Moderate difficulty. You’ll need a socket set and a jack to lift the mower. Takes about 30 minutes per spindle.
• Common gotcha: The pre-tapped holes fit MTD/Cub Cadet decks, but some aftermarket or older decks may have stripped or different hole spacing—check your bolt pattern before ordering.
• Screws included: Saves a trip to the hardware store, but check that the included screws match your deck’s thickness (usually 1/4-20 x 1 inch).

Should You Buy It

Yes, if you have a 46-inch MTD/Cub Cadet/Craftsman/Troy-Bilt mower with a failing spindle and want a reliable, affordable replacement that includes mounting hardware. Avoid if you need an exact OEM part or have a non-standard deck with odd bolt spacing.