Product Description
This replacement pulley matches John Deere GY20110, GY20639; Oregon 78-133 for selected mower deck drive applications. Use the OEM part number, pulley outside diameter, bore or spline style, belt position, and deck family to confirm fit before ordering. Key specifications include Outer Diameter 5-1/8″ (131 mm), Flat Outer Diameter 4-1/2″, Flat Width 1″, Overall Width 1-1/2″.
Specifications
| Attribute | Value |
|---|---|
| Pulley Type | Flat Idler Pulley |
| Outer Diameter | 5-1/8″ (131 mm) |
| Flat Outer Diameter | 4-1/2″ |
| Flat Width | 1″ |
| Overall Width | 1-1/2″ |
| Inner Diameter | 11/16″ / .669″ |
Important
Please verify your original pulley dimensions and OEM part number before ordering.
