- Description
Oil system hoses for Mi-8 and Mi-17 helicopters are flexible aviation lines used in lubrication, oil cooling and oil transfer circuits of the aircraft. In maintenance practice, these hoses are selected by aircraft part number, hose type, length, fitting configuration, temperature resistance, pressure class and the exact installation point within the helicopter oil system.
On Mi-8 / Mi-17 family helicopters, oil hoses may be installed in main oil supply lines, return circuits, engine lubrication sections, gearbox oil lines, oil cooling systems and auxiliary lubrication routes. Some assemblies work close to hot engine or transmission areas, where they are exposed to vibration, temperature changes, oil pressure fluctuations and continuous contact with heated lubricating oil. Because of this, visual similarity is not enough for correct replacement.
This category includes OST-standard oil system hoses, AT-series and U-series hose types, flexible oil lines, return oil hoses and complete aviation oil hose assemblies for Mi-8, Mi-17 and related Mi-171 helicopter versions. Depending on the application, the hose may be supplied as a reinforced oil line, a cooling circuit hose, a return line or a ready-to-install assembly manufactured according to the required part number, drawing, sample or technical specification.
All oil system hoses in this category are supplied only in factory new condition. Used, repaired, overhauled or serviceable hoses are not offered. For helicopter lubrication systems, material age, oil resistance, reinforcement condition, sealing quality and long-term thermal stability are critical for safe operation and maintenance planning.
For MRO companies, repair plants and fleet operators, replacement of Mi-8 / Mi-17 oil hoses is usually required during scheduled maintenance, overhaul, engine servicing, gearbox maintenance, oil cooler replacement, troubleshooting of oil leaks or long-term fleet support programs. In many cases, correct selection depends not only on the helicopter model, but also on modification, installed equipment, routing and connection points within the oil system.
Aviamisto supplies Mi-8 and Mi-17 oil system hoses, aviation oil hose assemblies and related helicopter spare parts for operators, MRO organizations, repair facilities and aviation parts suppliers. Some standard positions may be available from UAE or EU stock locations, while less common hose assemblies are produced or sourced upon request after confirmation of the part number, configuration and required documentation. Technical passports, certificates of conformity, batch traceability or origin documents may be provided for selected items when available.