Parts List for Troy-Bilt 12A-566 Lawn Mower
Access the official parts list for the Troy-Bilt 12A-566 lawn mower. This guide includes an exploded view diagram and a complete list of replacement parts to help you identify and order the correct components for maintenance and repair.
Table of contents
Important Information from the Parts List
This document provides an exploded view diagram and a comprehensive parts list for the Troy-Bilt 12A-566 lawn mower. It is intended for identifying and ordering replacement parts for maintenance and repair.
Safety and Maintenance
Important: For a proper working machine, use only Factory Approved Parts. V-Belts are specifically designed to engage and disengage safely. A substitute (non-OEM) V-Belt can be dangerous by not disengaging completely.
Using the Parts List
The provided diagram shows the assembly of the mower. Each component is marked with a reference number. To identify a part:

- Locate the component on the exploded view diagram.
- Note the reference number associated with that component.
- Find the corresponding Ref. No in the parts list table.
- Use the Part No. listed in the table to order the correct replacement.
Ordering Painted Parts
If you are ordering a painted part, you must add the applicable color code to the base part number. For example, if a part numbered 700-xxxx is painted powder black, the part number to order would be 700-xxxx-0637.
- Red: 0638
- Powder Black: 0637
Practical help
Common problems
Always use Factory Approved V-Belts. Substitutes may not disengage properly, creating a safety hazard.
Append the color code (0638 for Red, 0637 for Powder Black) to the base part number.
Before use
- Verify the model number is 12A-566.
- Identify the damaged or missing part using the exploded diagram.
- Locate the corresponding Part No. in the provided table.
- Check if the part requires a specific color code before ordering.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.