Aeagle 42" Deck 618-0565 Spindle Assembly for MTD 618-0574 918-0574 918-0565, Fit for Troy Bilt LT1742 LT1842 LTX1842 Bronco 42 Cub Cadet 1170 LT-1500 LT-1650 LT-1800 LT-1855

What It Is

This is a complete spindle assembly for 42-inch cutting decks on MTD-built lawn tractors. It houses the blade spindle and bearings, enabling the blade to spin freely. Designed for Troy-Bilt, Cub Cadet, and similar models with a 42" fabricated or stamped deck.

Fitment & Compatibility

Before buying, confirm three things:

• Deck size: Must be exactly 42 inches (measured blade tip to blade tip).
• OEM cross-reference: Replaces MTD 618-0565, 618-0574, 918-0574, and 918-0565. These are common on Troy-Bilt LT1742, LT1842, LTX1842, Bronco 42, and Cub Cadet 1170, LT-1500, LT-1650, LT-1800, LT-1855.
• Physical check: Measure the mounting hole pattern (typically 3.25" center-to-center) and spindle shaft diameter (usually 5/8"). Compare with your old spindle. Note: aftermarket spindles may have slight differences in housing height or bearing quality—measure your old unit’s overall height to ensure belt clearance.

Key Things to Know

• Quality: Aftermarket unit; bearings are sealed but may not last as long as OEM. Inspect for smooth rotation and no wobble before installing.
• Installation difficulty: Moderate. Requires removing the blade, belt, and deck. Use a torque wrench for blade bolts (typically 45–55 ft-lbs).
• Common gotcha: The spindle housing may be slightly shorter or taller than OEM—can affect belt tension or blade-to-deck clearance. Always compare with your old part.
• Warranty: No returns once installed if it doesn’t fit. Check deck model number (stamped on deck top) against the compatibility list above.

Should You Buy It

If you need a budget-friendly replacement for a worn or seized spindle on a 42" MTD-family tractor and you’re comfortable confirming fitment with a tape measure, this is a solid value at $32.99. Not ideal for commercial use or if you want OEM longevity—consider OEM for heavy-duty mowing.