This genuine Ariens / Gravely spindle assembly (part number 51520900) is designed to fit a range of Ariens Zoom and Gravely ZT zero-turn mower models. It plays a critical role in maintaining safe and efficient blade rotation, helping to protect the mower deck from damage during operation.

Manufactured to OEM standards, this spindle offers precise fitment and durability. It includes the spindle housing and mounting screws, making installation straightforward. The part is commonly used on 42″ and 50″ mower decks and suits models such as Ariens Zoom 42, Zoom 50, and Gravely ZT 34, ZT 42, and ZT 50.

Ideal for users seeking reliable replacement parts to maintain cutting performance and extend the life of their mower. Using genuine components ensures compatibility and long-term reliability, especially under demanding mowing conditions.

Fits:

• Ariens Zoom 42, Zoom 50
• Gravely ZT 34, ZT 42, ZT 50

Technical Specifications:
OEM Part Number: 51520900
Material: Steel
Mounting Holes: 4
Pulley Included: Yes
Spindle Height: 3.29 inches
Pulley Outer Diameter: 4.25 inches
Pulley Inner Diameter: 3.15 inches