Description This high‑quality tension spring (SKU: AM040) is designed for use in cutter assemblies, providing reliable tension and smooth operation. Manufactured to OEM specifications (COX AM040), it offers a durable replacement for worn or broken springs in compatible equipment. Ideal for maintaining consistent cutting performance, this spring is built to withstand regular use in demanding outdoor power tools. Features Precision‑engineered for a secure fit and consistent tension in cutter mechanisms. Manufactured from durable materials to resist fatigue and corrosion. Easy to install as a direct replacement for the original OEM part. Specifications SKU AM040 OEM COX AM040 GA Spares - Type Extension / Tension Spring Application Cutter Assembly Fits Cox Brushcutter / Line Trimmer (various models) Compatible with select Cox cutter head assemblies Replacement for OEM part AM040 Product Line Outdoor Power Equipment Replacement Parts – Tension Springs for Cutter Assemblies.