Hoses, tubes, and fittings form the fluid and gas transfer network throughout a Cummins engine, carrying fuel, coolant, lubricating oil, intake air, and exhaust gases between components. Flexible hoses accommodate engine movement and vibration, while rigid tubes provide fixed routing for high-pressure fuel lines and coolant transfer paths. Fittings such as elbows, unions, and couplings provide sealed connections at junction points. Over time, hoses deteriorate from heat exposure, vibration fatigue, and chemical degradation, while metal tubes can suffer from corrosion or cracking. A failed hose or tube can cause fluid leaks, overheating, loss of fuel pressure, or air intake leaks — any of which can lead to engine shutdown or damage.
AMS Parts supplies a wide range of hoses, tubes & fittings components for Cummins engines used in power generation, marine, and industrial applications. Browse a selection of available parts below, or contact us for specific requirements.
Below is a selection of hoses, tubes & fittings parts we supply. Use the search bar above to find a specific part number, or request a quote. You can also reach us directly at [email protected] or +44 7776 800169.
Inspect hoses regularly for signs of cracking, swelling, softening, hardening, oil contamination, or abrasion. Coolant hoses should be checked at every major service interval. Any hose showing visible deterioration should be replaced proactively to avoid unexpected failure.
Tubes are routed to fit specific engine configurations, including variations in turbocharger position, aftercooler layout, and accessory mounting. Even small differences in engine build spec or CPL can require different tube routing. Always verify the part number against the engine serial number.
Generic hose may not be rated for the same temperature, pressure, or chemical exposure as the OEM part. Fuel hoses in particular must meet specific material and pressure ratings. Using the correct OEM-specified hose helps prevent leaks and ensures safe operation.
