q&p 918-04889 Spindle Assembly Bracket Replaces 918-04889A 918-04822A 618-04822A 618-04950. Fits LTX1040 Tractor (2010 & After) 13AX90AS010 13RX90AS056 13AX90AS009 13WX90AS010 13WX90AS009

What It Is

This is a replacement spindle assembly bracket for the mower deck, housing the bearing and pulley that drive the blade. It’s designed for Cub Cadet LTX1040 series tractors (2010 and later) and compatible models with 42-inch or 46-inch fabricated decks.

Fitment & Compatibility

Before buying, verify your mower’s model number (not serial) against the list: 13AX90AS010, 13RX90AS056, 13AX90AS009, 13WX90AS010, or 13WX90AS009. This bracket replaces OEM part numbers 918-04889A, 918-04822A, 618-04822A, and 618-04950. Measure your deck’s spindle mounting hole pattern (typically 3-bolt, 3.5-inch center-to-center) and spindle shaft diameter (usually 5/8 inch). If your deck has a 48-inch or wider cutting width, this may not fit—check your deck’s stamped model tag.

Key Things to Know

• Quality: Durable cast iron with sealed bearings, but bearings are pre-packed and not serviceable—replace the whole assembly when worn.
• Installation: Moderate difficulty—requires removing the deck, belt, pulley, and blade. You’ll need a socket set, wrench, and possibly a puller for stubborn pulleys.
• Gotchas: The pulley nut may be reverse-threaded on some models; check before forcing. Also, ensure the spindle shaft keyway aligns with the pulley key before tightening.
• Compatibility: This is a direct-fit aftermarket replacement, but if your deck uses a different spindle height (e.g., for a deep-deck design), measure the overall length (typically 4.5 inches) to confirm.

Should You Buy It

If your Cub Cadet LTX1040 with a 42- or 46-inch deck has a wobbly blade, noisy spindle, or seized bearing, this is a solid, affordable direct replacement. It’s not for other brands or deck sizes, but within its fit range, it’s reliable and well-reviewed. Just confirm your model number and deck measurements first.