The ME088488 turbocharger is a critical performance component designed for the Mitsubishi 6D31T engine, widely used in the Kobelco SK200-3 hydraulic excavator. This direct-fit turbocharger restores lost power, reduces exhaust emissions, and improves fuel efficiency.
. Structural Advantages of the ME088488 Turbocharger
The ME088488 turbocharger is engineered with robust materials and precision manufacturing to withstand extreme heat and high rotational speeds.
High-strength cast iron housing – Provides excellent thermal resistance and dimensional stability under cyclic loads, preventing cracks and deformation.
Fully machined compressor wheel – Made from high-flow aluminum alloy, dynamically balanced to minimize vibration and noise while maximizing air intake.
Heat-resistant turbine wheel – Cast from Inconel or special steel grade capable of withstanding exhaust temperatures up to 950°C, ensuring long-term durability.
Floating bearing system – Uses oil-film floating bearings that reduce friction, support high-speed rotation (over 100,000 rpm), and extend service life.
Advanced seal ring design – Prevents oil leakage into the compressor or turbine side, reducing oil consumption and emissions.
Direct bolt-on fitment – Matches OEM dimensions perfectly, eliminating the need for modification on the Kobelco SK200-3 with 6D31T engine.
These structural features translate into faster throttle response, lower exhaust gas temperature, and extended engine life – a must for heavy-duty excavator applications.
2. Core Working Principle of the Turbocharger
The turbocharger operates on the principle of exhaust gas energy recovery. Here is a step-by-step explanation:
Exhaust gas entry – Exhaust gases from the Mitsubishi 6D31T engine flow into the turbine housing at high pressure and temperature.
Turbine wheel rotation – The expanding gases strike the turbine wheel blades, causing the wheel and shaft to spin at extremely high speeds (typically 80,000–150,000 rpm).
Compressor intake – The same shaft drives the compressor wheel on the opposite side. As the compressor spins, it draws in ambient air through the air filter.
Air compression – The centrifugal force compresses the incoming air, increasing its density. The compressed air is then cooled (via an intercooler, if equipped) and forced into the engine cylinders.
More power output – With more oxygen available per cycle, the engine can burn more fuel efficiently, producing significantly higher horsepower and torque without increasing displacement.
For the Kobelco SK200-3 excavator, this means better digging performance, reduced fuel consumption per ton of material moved, and compliance with Tier 2/3 emission norms.
3. Main Application Equipment
The ME088488 turbocharger is specifically matched to the Mitsubishi 6D31T engine. Its primary application is:
Kobelco SK200-3 – A 20-ton class hydraulic excavator used in construction, mining, forestry, and infrastructure projects.
Other compatible machinery (using the same 6D31T engine):
Kobelco SK200-3E, SK200-5 (early models)
Mitsubishi forklifts (heavy-duty series)
Some Mitsubishi bus and truck engines (6D31T variant)
Industrial power units and generator sets
Always verify your engine serial number and OEM turbo part number (ME088488) before purchasing to ensure perfect compatibility.
4. Common Failure Symptoms & Repair/Replacement Points
Symptoms of a Failing Turbocharger on a Kobelco SK200-3
Loss of engine power – The excavator struggles to dig, lift, or travel uphill, especially under load.
Excessive black smoke – Incomplete combustion due to insufficient boost pressure, resulting in sooty exhaust.
Blue or white smoke – Indicates oil leaking past seals into the exhaust or intake side.
Whining or grinding noise – Caused by worn bearings or contact between wheels and housing.
High oil consumption – Turbo seals allow engine oil to enter the combustion chamber or exhaust manifold.
Low boost pressure – Measured with a gauge; often due to wastegate malfunction, carbon build-up, or damaged wheels.
Check engine light or fault codes – Some modernized equipment may log underboost/overboost codes.
Key Points for Repair and Replacement
Inspect before removal – Check for oil contamination in the air intake piping and exhaust side. Dirty oil indicates bearing failure.
Always replace oil and filter – Old oil contains metal particles that will destroy a new turbocharger within hours.
Prime the turbo with oil – Before starting the engine, pour clean engine oil into the oil inlet port and rotate the shaft by hand to pre-lubricate bearings.
Use new gaskets and fasteners – Never reuse old gaskets. Tighten bolts to Mitsubishi’s torque specifications (typically 25–35 Nm for mounting nuts).
Clean the entire intake and exhaust system – Remove any debris, carbon, or old seal remnants.
Perform a post-installation check – Run the engine at idle for 2–3 minutes to establish oil flow, then gradually increase load. Avoid sudden high revs for the first 15 minutes.
Professional balancing – If rebuilding, ensure the rotating assembly is dynamically balanced. For most field repairs, a complete cartridge replacement is safer.
Caution: Do not attempt to drive the excavator or run the engine with a failed turbo – the engine may ingest broken blades or suffer a runaway condition.
5. Why Choose Rsolid Engine Parts as Your Supplier
At Rsolid Engine Parts, we specialize in high-quality aftermarket and OEM-equivalent turbochargers for construction machinery. When you purchase the ME088488 turbocharger from us, you benefit from:
100% factory testing – Every unit is tested for balance, leak-proofing, and boost pressure before shipping.
Precision engineering – Manufactured to match or exceed OEM specifications for the Mitsubishi 6D31T engine.
Direct fitment – No modifications needed; bolt-on replacement for Kobelco SK200-3 excavators.
Competitive pricing – Up to 40% lower than dealer prices without compromising quality.
Fast global shipping – Ready stock in multiple warehouses; express delivery available.
12-month warranty – Peace of mind against manufacturing defects.
Expert technical support – Our team can assist with installation questions, torque specs, and troubleshooting via WhatsApp or email.
Secure online ordering – Visit our website www.rinjector.com to browse our full catalog of turbochargers, injectors, and engine parts.
Contact us today for a quote or installation advice:
WhatsApp: +8615975376778
Website: www.rinjector.com
Choose Rsolid Engine Parts – reliability that keeps your excavator digging.
