Repair kit for the piston-cylinder unit of STIHL hedge trimmers HS81/HS81R/HS86/HS86R/HS81T

This product is a complete engine overhaul kit, specifically designed for STIHL HS81, HS81R, HS86, HS86R, and HS81T series hedge trimmers. It includes a complete cylinder block with piston and allows for the replacement of key combustion chamber components. This is the professional repair solution for serious problems such as engine seizures, severe wear, and insufficient compression, which can lead to starting difficulties, power loss, or rough running. Important information: Compatible models: STIHL HS81, HS81R, HS86, HS86R, and HS81T series hedge trimmers (please check the exact model on your machine's nameplate). Scope of delivery: The kit typically includes a cylinder block with piston (including piston, piston rings, piston pin, circlips, etc.). Some kits also include a cylinder head gasket. Product Features: Perfect Model Compatibility: The components are precisely matched to the bore, stroke, intake port, and mounting holes of STIHL Hedgehog series engines, ensuring optimal compatibility with the specified models. High-Quality, Durable Components: The cylinder block is typically made of nickel-plated or hardened aluminum alloy for optimal heat dissipation. The pistons are made of high-strength aluminum alloy, ensuring wear resistance and smooth operation, thus restoring the engine's original performance. Comprehensive Performance Restoration: Directly addresses issues such as starting problems, power loss, and blue smoke caused by scoring in the cylinder wall, worn or stuck piston rings, and piston damage. Complete Rebuild Kit: Includes a matching cylinder and piston assembly—a crucial step in engine rebuild and restoring compression and power. Wide Range of Applications: A single kit covers several popular models in the HS series, simplifying repairs and inventory management.