Turbochargers increase engine power output and efficiency by using exhaust gas energy to compress intake air, allowing more fuel to be burned per cycle. Cummins engines use various turbocharger models including the Holset HX and HE series. Key turbocharger components include the compressor wheel, turbine wheel, bearing housing (centre housing rotating assembly / CHRA), turbine housing, compressor housing, wastegate actuator, and associated oil supply and drain lines. Turbocharger failures are often caused by oil starvation, contaminated oil, foreign object damage, or simply high operating hours. A failing turbocharger typically presents with loss of power, excessive black smoke, unusual whining or grinding noise, or oil leaking from the compressor or turbine seals.
AMS Parts supplies a wide range of turbochargers 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 turbochargers 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.
The most common causes are oil starvation (blocked or kinked oil supply line), contaminated oil reaching the turbo bearings, foreign object damage from debris entering the compressor or turbine, and excessive exhaust temperatures from overfuelling or restricted exhaust. Regular oil changes and air filter maintenance help extend turbocharger life.
Both options are available. Turbocharger repair kits (CHRA or cartridge kits) allow the centre section to be rebuilt while reusing the housings, provided the housings are not damaged. Complete replacement turbochargers are also available for cases where rebuild is not practical.
The wastegate actuator controls a bypass valve that limits turbocharger boost pressure to protect the engine. A faulty actuator can cause over-boost (risk of engine damage) or under-boost (loss of power). Symptoms include boost-related fault codes, inconsistent power delivery, or a visibly stuck or leaking actuator.
