Regenerated Garrett low-pressure turbocharger for man, 51091019004

Introducing a regenerated low-pressure turbocharger. Regeneration made by Arcoore specialists

Numbers:

807158-5;
807158-0005;
51091017004;
51091019004;
807158-5005S;

Application in man:

Bus;

tgs;

tgx;

Neoplan;

Cityliner N 1216 HD;

Engine:

D2076L;

Power:

320 HP;

360 HP;

400 HP;

480 HP;

Capacity:

10,9L;

The turbocharger in the engine comes complete with turbine 51091017011

The role of the low-pressure turbocharger in MAN D2076L engines

The Garrett 51091019004, 807158-5005S turbocharger is part of a two-stage turbocharging system used in 10.9-liter MAN D2076L engines. These units, which power TGX and TGS series trucks, as well as coaches and city buses, require a powerful dose of air to meet power demands while complying with stringent emissions standards. In a sequential system, the low-pressure turbine (the larger of the two devices) is responsible for the initial compression of huge masses of air, which then enter the smaller high-pressure turbine.

Its operation is most noticeable and essential in the mid- and high-speed ranges of the engine, where it provides maximum air flow, ensuring adequate dynamics and optimal fuel consumption when driving with a full load on the road.

Symptoms of low-pressure turbine failure

A turbocharger malfunction in a two-stage system can significantly reduce the efficiency of the vehicle. If the low-pressure section fails, the driver usually feels a noticeable drop in power only at higher speeds (at low speeds, the engine may still respond reasonably well, supported by the smaller turbine). This is often accompanied by the engine failure indicator light coming on and error messages related to insufficient boost pressure. Other worrying symptoms include a loud whistling, howling, or metallic grinding noise that intensifies with increasing revs, as well as increased engine oil consumption and excessive exhaust smoke, indicating a leak in the core and the ingress of lubricant into the intake or exhaust system.

Causes of damage in two-stage supercharging systems

Turbochargers operate under extreme temperature and mechanical conditions, and the main cause of their failure is problems with the lubrication system. Contaminated engine oil, excessive oil change intervals, or temporary pressure drops lead to rapid seizure of the precision slide bearings on which the turbine shaft rotates. Another serious hazard in low-pressure turbines is a clogged DPF particulate filter. It generates powerful back pressure in the exhaust system, which puts thermal and mechanical stress on the compressor rotor, leading to its damage. Mechanical damage is also common, caused by foreign objects (e.g., sand particles from a leaky air filter) being sucked into the compressor rotor.

Why choose a remanufactured Garrett 51091019004 turbocharger?

Choosing a professionally remanufactured Garrett low-pressure turbocharger from Arcoore is the most sensible option if you want to restore the full power of your D2076L engine without incurring huge service costs. In our rigorous rebuild process, we replace the entire turbine core, installing new compression wheels, shafts, bearings, and seals that are balanced on high-speed machines. Cast iron and aluminum housings are meticulously cleaned and inspected. As a result, you receive a component that matches a brand-new part in terms of efficiency, service life, and tightness. This allows your vehicle to get back on the road quickly, giving you peace of mind and financial savings.