General description The Sprocket Cover with Chain Tensioner is designed for STIHL chainsaw models MS170, MS180, 017, 018, MS210, MS230, MS250, 021, 023, and 025. This 6-in-1 set includes a sprocket cover, chain tensioner, bolts, and nuts, providing everything needed for a quick and easy replacement. The cover effectively protects the sprocket from dirt and damage, ensuring smooth operation of the chainsaw. Technical specifications Material: Sturdy ABS plastic Package includes: Sprocket cover × 1, chain tensioner × 1, nut × 2, bolt × 2 Compatibility and accessories Compatible with STIHL models: 017, 018, 021, 023, 025, MS170, MS180, MS210, MS230 Installation Parts replacement is quick and easy Usage Protects the sprocket and keeps it clean Ensures smooth operation of the chainsaw