MaxPower 7155 Replacement Spindle Assembly for MTD 717-0906, 717-0906A, 753-05319, 917-0906, 917-0906A

What It Is

The MaxPower 7155 is a replacement spindle assembly for MTD-branded riding mowers and zero-turn mowers. It houses the blade pulley and bearings, transferring engine power to the cutting blade.

Fitment & Compatibility

Check your mower’s model/serial number against the OEM part numbers: MTD 717-0906, 717-0906A, 753-05319, 917-0906, or 917-0906A. This spindle fits most MTD, Cub Cadet, Troy-Bilt, and Yard-Man decks with a 3.5-inch bolt pattern and a 5/8-inch shaft diameter. Measure your spindle’s mounting hole spacing (center to center) and shaft diameter before ordering. If your deck uses a 1-inch shaft or a 4-inch pattern, this won’t fit. Aftermarket replacement; not an OEM MTD part.

Key Things to Know

• Quality: Metal housing with sealed bearings—holds up well for residential use. Not as robust as OEM for heavy commercial cutting.
• Installation: Moderate difficulty. Requires removing the blade, belt, and pulley. Use a torque wrench for the spindle nut (typically 30–50 ft-lbs). Replace all three spindles at once if others are worn.
• Common Gotchas: The included grease fitting is small; use a needle-style grease gun. Check the blade adapter—some MTD decks use a different adapter (square vs. star-shaped). If your original spindle had a different shaft length (e.g., 2.5 inches vs. 3 inches), verify the MaxPower 7155 matches.
• Bearing Noise: If the spindle spins rough or wobbles after install, the bearings may be preloaded incorrectly. Loosen and retorque the nut slightly.

Should You Buy It

If you have an MTD-family mower with a standard 3.5-inch bolt pattern and need a reliable, budget-friendly replacement for one or two spindles, this is a solid choice. Skip it if you’re a commercial user requiring heavy-duty duty or if your deck uses a non-standard shaft length or bolt pattern—go with OEM instead.