49182-06800 Turbocharger for Mitsubishi S6R / S6R2 Diesel Engine – Industrial & Marine Grade Performance

The 49182-06800 Turbocharger is a robust, high‑efficiency forced induction unit designed specifically for Mitsubishi S6R and S6R2 series diesel engines. Commonly found in heavy‑duty industrial, marine propulsion, and power generation applications, this turbocharger delivers reliable boost, lowers exhaust temperatures, and improves fuel economy under continuous high load.

1. Structural Features and Advantages of the 49182-06800 Turbocharger

The 49182-06800 turbocharger is engineered to meet the demanding requirements of Mitsubishi’s S6R and S6R2 engines (6‑cylinder, 14–16L displacement). Its key design advantages include:

• High‑strength cast iron turbine housing – Withstands exhaust temperatures up to 900°C and resists thermal fatigue in continuous operation.

• Forged aluminium compressor wheel – Aerodynamically optimised for high flow and rapid response across the engine’s operating range.

• Heavy‑duty floating journal bearings – Dual oil‑film bearings provide excellent damping, tolerate minor oil contamination, and are serviceable.

• Precision wastegate with robust actuator – Maintains stable boost pressure (typically 18–28 PSI) to prevent over‑boost and protect engine components.

• Direct bolt‑on replacement – Replaces Mitsubishi OEM part numbers 49182-06800, 49182-06801, 49182-06810, and 49182-06820 for S6R and S6R2 engines.

• Corrosion‑resistant coating (marine variants) – Optional protective coating for seawater environments.

• Oil slinger and labyrinth seals – Minimise oil leakage, critical for industrial and marine installations.

These features result in lower exhaust gas temperatures (EGT), reduced turbo lag, and extended turbo life – even in continuous high‑load duty cycles such as generator sets or marine propulsion.

2. Core Working Principle

The 49182-06800 turbocharger operates on the principle of exhaust gas energy recovery, tuned for the torque characteristics of Mitsubishi S6R/S6R2 engines. Here is the step‑by‑step process:

1. Exhaust gas entry – Engine exhaust flows into the turbine housing at high velocity and temperature.

2. Turbine wheel rotation – The gas spins the turbine wheel (made of high‑nickel alloy) at speeds up to 105,000 RPM.

3. Common shaft drive – The turbine and compressor wheels share a single shaft, so the compressor spins simultaneously.

4. Air compression – The compressor wheel draws ambient air through the air filter, compresses it, and forces it into the intake manifold.

5. Increased power output – Denser air allows more fuel to be burned per cycle, increasing horsepower by 30–40% without raising engine displacement.

A wastegate bypasses excess exhaust gas around the turbine once the preset boost level is reached, preventing over‑boost and engine damage. The 49182-06800 typically uses an oil‑cooled centre housing, though water‑cooled variants are available for extreme duty cycles.

3. Primary Applications / Main Equipment

The 49182-06800 turbocharger is widely used in equipment powered by Mitsubishi S6R and S6R2 engines. Typical applications include:

• Industrial power units – Stationary generator sets (gensets), pumps, compressors, and irrigation systems.

• Marine propulsion – Workboats, fishing vessels, tugboats, and small cargo ships with Mitsubishi S6R2 marine engines.

• Construction machinery – Large excavators, bulldozers, and wheel loaders using Mitsubishi S6R engines.

• Agricultural equipment – Heavy tractors and combine harvesters.

• Railway maintenance vehicles – Locomotives and track machinery.

• Mining equipment – Haul trucks and drilling rigs.

This turbocharger is a direct OEM replacement for part numbers: 49182-06800, 49182-06801, 49182-06810, 49182-06820, and ME074896 (Mitsubishi cross‑reference).

⚠️ Note: Always verify your engine’s exact model (S6R, S6R2, S6R2‑MPTK, etc.) and turbo mounting flange before ordering.

4. Common Failure Symptoms & Repair/Replacement Guidelines

Typical Failure Signs:

Repair and Replacement Key Points:

1. Pre‑removal inspection – Check shaft play (radial >0.5mm, axial >0.1mm indicates replacement). Inspect air filter, oil quality, and intake hoses for restrictions.

2. Use only OEM‑grade replacement – The 49182-06800 must meet Mitsubishi’s balance and material specifications. Avoid unbranded counterfeits.

3. Pre‑lubricate the turbo – Pour clean engine oil into the oil inlet hole before installing to prevent dry‑start bearing seizure.

4. Replace oil feed and drain lines – Old lines may contain carbon sludge or restrictions.

5. Use new gaskets and hardware – Torque manifold studs to 35–45 Nm; oil drain bolts to 20–25 Nm.

6. Prime the engine oil system – Crank the engine with the fuel shut off until oil pressure builds, then start and idle for 2–3 minutes.

7. Check for boost leaks – After installation, pressurise the intake system and listen for leaks at intercooler boots and gaskets.

8. Verify wastegate operation – Use a hand pump to ensure the actuator opens at specified pressure (typically 18–24 PSI).

⚠️ Critical: Always address the root cause (restricted oil supply, dirty air filter, excessive back pressure) before fitting a new turbo – otherwise, the replacement will fail prematurely.

5. Why Choose Rsolid Engine Parts as Your Supplier?

Rsolid Engine Parts is a leading global supplier of diesel engine components, including the 49182-06800 turbocharger for Mitsubishi S6R/S6R2 engines. Here are our advantages:

📞WhatsApp: +8615975376778
🌐Website: www.rinjector.com

Whether you need one turbo for a genset or a bulk order for a fleet of vessels, Rsolid Engine Parts delivers reliability, performance, and peace of mind.