503856301 - Gearhead Nut Brushcutter

The Husqvarna Gearhead Nut (Part #: 503856301) is a genuine OEM replacement part designed to securely fasten the cutting attachment to the gearhead of Husqvarna brushcutters. This high-quality nut ensures safe, vibration-resistant operation of blades and trimmer heads, maintaining optimal cutting performance and operator safety.

Ideal for routine maintenance or replacing a worn or lost nut, this gearhead fastener is manufactured to Husqvarna’s exact standards for durability and compatibility with a wide range of brushcutter models.

Features:

• Genuine Husqvarna Gearhead Nut for Brushcutter

• Part #: 503856301

• Secures blade or trimmer head to the gearhead

• OEM fit for select Husqvarna brushcutters and clearing saws

• Designed for high-speed, vibration-prone environments

• Durable construction for long-lasting performance

• Essential for safe and efficient cutting operations

• Easy to install—perfect for professional or DIY maintenance

Bee Green in Oakland is your trusted Husqvarna dealer, proudly serving the Bay Area with genuine parts, tools, and expert support for landscaping and outdoor professionals.