Mitsubishi TD06 Turbo Rebuild Service

PT Turbo rebuilds and remanufactures Mitsubishi TD06 turbochargers in-house at our San Bernardino, CA shop. Every unit goes through a full teardown, OEM-spec or better parts replacement, CIMAT VSR balancing, and final quality inspection before it ships back — backed by a 12-month unlimited mileage warranty and nationwide mail-in service. Commonly found on Marine / Industrial.

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Common Mitsubishi TD06 Part Numbers

The following part and SKU numbers from PT Turbo’s catalog match or cross-reference to the Mitsubishi TD06:

Don’t see your number? Contact PT Turbo — we’ve been matching turbo part numbers since 1978.

Trouble Codes Often Seen on Marine / Industrial Equipped with the Mitsubishi TD06

These are generic diagnostic trouble codes commonly associated with turbo boost control issues on this application. They’re triggered by the vehicle’s ECU, not the turbo itself, so confirm with a scan tool before assuming the turbocharger is at fault.

• P0299 — Turbocharger/Supercharger Boost Pressure – Low (underboost)
• P0234 — Turbocharger/Supercharger Overboost Condition

Also Known As

Buyers searching for this turbo often use a handful of different names for the same unit.

• Mitsubishi TD06 Marine Turbo
• Mitsubishi TD06 Industrial Turbocharger
• Mitsubishi TD06H
• Mitsubishi TD06-20G / TD06-17 (frame variants)
• Mitsubishi TD06 continuous-duty turbo
• Mitsi TD06

Vehicles We Commonly See With the Mitsubishi TD06

The TD06 is a workhorse frame that shows up on marine powerplants and stationary industrial diesels far more than on road vehicles.

Marine Diesel Applications

• Inboard marine diesels in the 150 to 300 HP range
• Commercial fishing and workboat engines run at continuous load
• Mitsubishi 6D14/6D15/6D16 and 4D3x series marine conversions
• Repower and re-marinized industrial blocks from the 1980s through 2000s

Industrial and Stationary Power

• Generator set diesels running long unattended duty cycles
• Compressor, pump, and irrigation drive engines
• Older Mitsubishi industrial power units from the late 1980s onward

Off-Highway and Construction Equipment

• Excavators, wheel loaders, and graders on Mitsubishi-based engines
• Skid steers and material handlers using the 6D series
• Crane and forklift powerplants in continuous-shift operations

Common Mitsubishi TD06 Failure Symptoms

• Audible shaft rattle or a whining howl at load that rises with RPM
• Visible blue smoke from oil pulling past worn seals during sustained running
• Excessive radial and axial shaft play from continuous-duty bearing wear
• Oil weeping or pooling at the compressor or turbine housing seal
• Slow boost response or boost that falls off under load
• Pitting, white salt crust, or corrosion on marine compressor wheels and housings
• Black smoke and loss of power from a fouled or damaged compressor wheel
• Oil discoloration and sludge found at the center housing during teardown

Real Mitsubishi TD06 Failures We See in Our Shop

After hundreds of these units across our bench, the failure pattern on the TD06 is consistent and almost always tied to how hard the engine works.

• On the Mitsubishi TD06 units we rebuild, the number one issue is journal and thrust bearing wear from continuous-duty operation. These turbos rarely get the heat cycles a road turbo does, so they just run at load for thousands of hours until the bearings wash out and shaft play opens up.
• We frequently see saltwater corrosion on marine TD06 cores. The aluminum compressor wheel and housing pit and chalk over, and on neglected units the corrosion eats into the wheel blades enough to throw the rotating assembly out of balance.
• Oil contamination is a major killer on these. With the long service intervals common to marine and genset duty, the oil carbonizes in the center housing and starves the bearings, and we pull a lot of TD06 cores with hard sludge packed around the journals.
• Thrust failure shows up often on units that have lived through boost surge or a clogged oil feed. The thrust collar and bearing take the hit first, and that axial slop is what lets the wheels start kissing the housings.
• On marine units we also catch seized or scored shafts where coolant or salt has migrated into the center section through a tired seal, leaving rust streaks down the journal.
• Compressor wheel damage from ingested debris or corrosion chunks is common, and on a continuous-duty unit a small imbalance turns into full bearing destruction fast because it never gets a chance to cool and reset.

Preventing Future Mitsubishi TD06 Failures

Most TD06 failures we see trace back to maintenance habits, and a few simple practices add years to a rebuilt unit.

• Shorten oil and filter intervals on continuous-duty engines. The extended intervals that cause sludge are the single biggest threat to these bearings.
• Use a clean, high-quality oil that resists carbonizing under sustained heat and load.
• On marine installs, flush and protect the system properly and address any path for saltwater or moisture to reach the turbo.
• Idle the engine to stabilize before shutdown so oil keeps moving through the center housing and does not bake onto hot journals.
• Verify the oil feed line is clear and unrestricted before reinstalling, since starvation kills these bearings quickly.
• Inspect and service the air filter regularly to keep grit and debris off the compressor wheel.
• Check the intake and boost plumbing for leaks so the turbo is not overspeeding to make up for lost pressure.

Common Mitsubishi TD06 Upgrade Paths

Customers rebuilding a TD06 often ask what can be improved while it is apart. The most common requests are upgraded compressor and turbine wheels for more airflow on repowered marine and industrial engines, billet compressor wheels for better durability against corrosion and fatigue, and heavier thrust bearing setups to handle the constant load these units live under. For continuous-duty applications, the priority is usually reliability rather than peak power, so a balanced rebuild with upgraded thrust capacity and a quality wheel is what most operators choose.

Frequently Asked Questions

How to Identify Your Mitsubishi Turbo

The identification tag is typically located on the compressor housing, bearing housing, or center section of the turbocharger. It usually lists the model number, assembly number, and serial number. If you’re not sure which Mitsubishi model you have, send PT Turbo a photo of the tag and we’ll help identify it before you ship anything.

PT Turbo Warranty

• 12-month, unlimited mileage warranty against defects in parts and workmanship
• Final quality inspection on every rebuild: leak test, visual inspection, actuator or wastegate function check
• In-house CIMAT VSR balancing with a balance report included
• Nationwide mail-in service — you don’t need to be local

What the Mitsubishi TD06 Rebuild May Include

• Complete teardown of all major components
• Ultrasonic or parts cleaning to remove carbon, oil residue, and contamination
• Journal bearing, thrust bearing, and seal replacement
• O-rings and hardware replacement
• Shaft and wheel inspection, with compressor or turbine wheel replacement if needed
• Wastegate inspection and actuator linkage service, when equipped
• CIMAT VSR balancing
• Final inspection

Why Customers Choose PT Turbo

• Rebuilding turbochargers, including Mitsubishi, since 1978
• In-house CIMAT VSR balancing on every unit, not outsourced
• Full housing sandblasting and OEM-spec or better parts replacement
• Inspect first, quote before work begins — no surprise charges
• Nationwide mail-in service from our San Bernardino, CA shop

PT Turbo Inspection Process

Every turbocharger goes through the same evaluation before any work begins:

1. Initial evaluationcompressor wheel, turbine wheel, shaft, bearing housing, VGT assembly (if equipped), actuator, and seal surfaces are checked first.
2. Complete disassemblythe turbocharger is fully torn down and every major component is inspected individually.
3. Cleaningcomponents are cleaned to remove carbon, oil residue, rust, and contamination.
4. Measurementcritical tolerances are measured against OEM specification.
5. Reassemblyrebuilt using new wear components matched to your specific model.
6. CIMAT VSR balancingthe rotating assembly is balanced in-house, with a balance report included.
7. Final inspectionleak test, visual inspection, and actuator or wastegate function check before shipment.

No work begins without your approval. You receive a quote after inspection, not before.

Pricing

Most rebuilds require inspection before final pricing. Standard rebuild pricing depends on the turbo model, parts availability, wheel condition, shaft condition, housing damage, and whether upgrades are requested. PT Turbo inspects every turbo and sends a quote before any work begins — no surprise charges.

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