This technical description covers the John Deere Hexagonal Lock Nut, M8 – 14M7166, detailing its key features, official specifications, and compatibility with John Deere equipment. It is designed for reliable fastening in demanding agricultural, turf, and construction applications.

Key Features

Genuine John Deere OEM part hexagonal lock nut 14M7166, engineered for reliable fastening in John Deere machinery.
Integrated locking mechanism prevents loosening from vibration or heavy operation, maintaining secure joints in field conditions.
M8 thread size with a precise 1.25 mm pitch for accurate engagement with mating bolts.
13 mm width across flats supports common spanners or socket tools for quick installation and removal.
High-strength steel construction with a zinc-plated corrosion-resistant finish for durability in harsh environments.
Compact height (~5.5 mm) designed for tight assemblies in agricultural, turf, and construction equipment.
Specifically designed to secure bolts and brackets, helping reduce downtime from fastener failure in field operation.

Product Details

Product Type: Hexagonal Lock Nut
Brand: John Deere
Part Number: 14M7166
Thread Size: M8
Thread Pitch: 1.25 mm
Width Across Flats: 13 mm
Height: Approximately 5.5 mm
Material: High-strength steel
Finish: Zinc-plated corrosion-resistant coating
Application: Secure fastening for machinery assemblies and structural components

Compatibility

Used across John Deere agricultural equipment, turf and grounds care, and construction/utility attachments.
Affected models and configurations include:
- Agricultural Equipment: 6M Series tractors (e.g., 6M 95, 6M 105, 6M 125)
- 6R Series tractors: 6R 130, 6R 150, 6R 185
- Grounds Care Equipment: Lawn and garden tractors, decks, mower attachments
- Construction & Utility Equipment: Compact construction machines, utility vehicles and attachments
Compatibility may vary by machine configuration and serial number. Always confirm with your equipment parts catalogue before ordering.