Mitsubishi TD06H Turbo Rebuild Service

PT Turbo rebuilds and remanufactures Mitsubishi TD06H 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 Performance.

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Common Mitsubishi TD06H Part Numbers

The following part and SKU numbers from PT Turbo’s catalog match or cross-reference to the Mitsubishi TD06H:

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

Trouble Codes Often Seen on Marine / Industrial Performance Equipped with the Mitsubishi TD06H

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 unit often use a handful of different names and spellings.

• Mitsubishi TD06H turbo
• Mitsubishi TD06H-20G / high-flow TD06 variant
• Mitsubishi Marine / Industrial Performance turbo
• TD06H continuous-duty turbocharger
• Mitsubishi TD06-H turbo (hyphenated shorthand)
• Mitsubishi high-flow TD06 marine turbo

Vehicles We Commonly See With the Mitsubishi TD06H

The TD06H is the higher-flowing TD06 sibling, so we see it almost exclusively on continuous-load marine and industrial setups rather than light passenger applications.

Marine Propulsion and Auxiliary Power

• Inboard diesel commercial fishing and work boats
• Repower projects on older marine diesel blocks running higher boost targets
• Marine genset and auxiliary power units running long duty cycles
• Saltwater and brackish-water vessels where corrosion exposure is constant

Industrial and Stationary Equipment

• Generator sets and prime-power units running near-continuous load
• Pump, compressor, and irrigation drive engines
• Industrial diesel power packs adapted to the high-flow TD06H housing

Performance and Upgraded Diesel Builds

• Older 4-cylinder and 6-cylinder diesels upgraded from a smaller TD05/TD06 frame
• Custom high-output builds that need the larger TD06H compressor and turbine flow

Common Mitsubishi TD06H Failure Symptoms

• Audible shaft play or a metallic rattle from the center housing at idle and during spool
• Excessive in-and-out shaft movement that lets the compressor or turbine wheel contact the housing
• Oil seepage at the compressor cover or oil pooling in the intake tract
• Blue smoke under load from oil being drawn past worn seals
• Loss of boost or slow spool, especially noticeable under sustained high load
• High-pitched whine or siren noise that changes with engine load
• White or hazy salt-laden residue and pitting on marine compressor housings
• Wheel rub marks, chipped blade tips, or dust streaks inside the housings

Real Mitsubishi TD06H Failures We See in Our Shop

• On the Mitsubishi TD06H units we rebuild, the number one issue is journal bearing wear from continuous-duty operation. These turbos rarely get a break, so the bearings see hours of steady load that wear them oval long before a passenger turbo would ever fail.
• We frequently see saltwater corrosion on the marine cores, especially around the compressor housing and backplate. The aluminum pits and the bore loses its sealing surface, which is why we media-blast, inspect, and often replace housings rather than just polishing them.
• Thrust bearing failure is a recurring theme on the high-output builds. Sustained high-load operation hammers the thrust surfaces, and once the thrust washer wears we see the telltale endplay that leads to oil leaks and wheel contact.
• We pull a lot of these apart and find coked oil in the center housing from heat-soaked shutdowns. On continuous-load marine and genset engines, that carbon accelerates bearing and seal wear if the oil supply ever gets restricted.
• Compressor and turbine wheel tip damage shows up on units that ingested debris or ran with worn bearings long enough to let the wheels kiss the housing. By that point the shaft is usually scored and the whole rotating group needs replacement.
• On marine cores we also find corroded oil feed and drain lines feeding contaminated oil into an otherwise rebuildable housing, so we always inspect those passages before signing off on the core.

Preventing Future Mitsubishi TD06H Failures

Most TD06H failures we handle trace back to a few avoidable habits, especially on continuous-duty engines.

• Change oil and filters on a tighter interval than the engine manual suggests, since continuous load degrades oil faster than intermittent use
• Use the correct grade of clean oil and verify oil feed pressure to the center housing on every service
• Let the engine idle to cool down before shutdown to prevent oil coking in the bearing housing
• On marine units, flush and rinse after saltwater exposure and inspect housings for early pitting and corrosion
• Check intake and charge piping for boost leaks that force the turbo to overspeed to make target pressure
• Keep air filtration clean and sealed so no grit or salt mist reaches the compressor wheel
• Watch the cooling system on water-cooled center sections to keep bearing temperatures in check under sustained load

Common Mitsubishi TD06H Upgrade Paths

Because the TD06H is already the high-flow member of the TD06 family, customers rebuilding one often ask about pushing it further or making it survive longer under load. The most common requests are upgraded compressor and turbine wheels for more flow, billet compressor wheels for strength on high-boost marine and performance builds, and heavier-duty thrust bearing assemblies to handle sustained high-load operation. On continuous-duty and saltwater applications, the priority is usually reliability rather than power, so corrosion-resistant components and stronger thrust hardware are the upgrades that come up most often.

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 TD06H 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.

Related Mitsubishi Models

Turbo Models That Fit the Mitsubishi TD06H

• Mitsubishi TD06 Turbo Rebuild Service