Mitsubishi TD05 Turbo Rebuild Service

PT Turbo rebuilds and remanufactures Mitsubishi TD05 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 Performance / Marine.

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Common Mitsubishi TD05 Part Numbers

The following part and SKU numbers from PT Turbo’s catalog match or cross-reference to the Mitsubishi TD05:

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

Trouble Codes Often Seen on Performance / Marine Equipped with the Mitsubishi TD05

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 one of these names:

• Mitsubishi TD05 turbocharger
• Mitsubishi TD05 performance turbo
• Mitsubishi TD05 marine turbo
• Mitsubishi TD05H
• Mitsu TD05 (common shorthand)
• TD05-16G / TD05 big compressor

Vehicles We Commonly See With the Mitsubishi TD05

The TD05 is one of the most adaptable Mitsubishi cores we handle, and it shows up across street performance and marine duty.

Performance Street and Track Builds

• Mitsubishi Lancer Evolution swaps and upgrades (Evo IV through IX era platforms)
• Mitsubishi Eclipse and Eagle Talon 4G63 builds
• Subaru and DSM hybrid setups running TD05-16G housings
• General 4-cylinder performance swaps sized for 300 to 400 horsepower

Marine and Repower Applications

• Inboard diesel marine engines running TD05 frame chargers
• Small commercial and recreational boat repowers
• Continuous-duty marine units exposed to constant high-RPM loading

Industrial and Equipment Crossover

• Generator sets and stationary diesel power units using the TD05 core
• Light industrial diesel applications adapted to the TD05 frame

Common Mitsubishi TD05 Failure Symptoms

• Audible shaft play or a rattling whine that changes pitch under throttle
• Excessive end-to-end or radial shaft movement when checked by hand
• Blue smoke under load or on deceleration from oil passing the seals
• Oil pooling in the compressor housing or intercooler piping
• Loss of boost or slow spool from a worn or scored bearing assembly
• High-pitched siren or surge noise at part throttle, often from a mismatched compressor
• Visible contact marks on the compressor or turbine wheel tips
• Boost spikes followed by sudden drops as the wastegate or seals fail

Real Mitsubishi TD05 Failures We See in Our Shop

On the Mitsubishi TD05 units we rebuild, the same handful of failures come across the bench again and again:

• We frequently see worn shafts from the high-RPM duty cycles these turbos live under. Performance and marine use keeps the shaft spinning hard for long stretches, and that constant loading wears the journal bearings until you can feel play with your fingers.
• Bearing wear from oil starvation is the big one. During hard acceleration the oil supply momentarily can’t keep up, especially on builds with restricted or aged feed lines, and the bearings get hammered. By the time it reaches us the bearing surfaces are blued and scored.
• Compressor surge damage is common on TD05 units that were oversized for the application. When the wheel is too big for the engine’s airflow demand, the air backs up and the wheel chatters against the housing, leaving telltale contact marks on the leading edges.
• We see thrust bearing wear that ties directly back to surge and boost spiking. The repeated fore-and-aft loading from compressor instability eats the thrust bearing long before the journal bearings give out.
• On marine cores we see corrosion and salt intrusion combined with the bearing wear, which means the center section often needs more attention than a typical street unit.
• Oil seal failure shows up after the shaft has worn enough to let the wheels float, and once the seals go you get the oil-in-intercooler complaint that usually brings the turbo to us in the first place.

Preventing Future Mitsubishi TD05 Failures

Most TD05 failures we see are tied to oil supply and sizing, so prevention comes down to a few disciplined habits:

• Run frequent oil changes with a quality oil and keep the feed line clean, since this turbo is unforgiving of oil starvation during hard pulls
• Let the turbo idle for a minute before high-load operation so the bearings have full oil pressure before you load them up
• Cool down at idle after hard runs or long marine sessions to prevent the oil from coking in the center housing
• Size the compressor correctly for your engine’s airflow to avoid the surge damage that kills oversized TD05 builds
• Check the feed and drain lines for restriction or kinks any time you service the unit
• Inspect the air filter and intake for leaks so grit never reaches the compressor wheel
• On marine setups, flush and inspect for salt intrusion and verify the oil supply pressure regularly

Common Mitsubishi TD05 Upgrade Paths

Because the TD05 is so popular in performance and marine circles, customers rebuilding one often ask about upgrading at the same time. The most common requests are larger compressor wheels such as the 16G or 18G profiles for more airflow, billet compressor wheels for higher strength at high RPM, and upgraded thrust bearings to handle the loads that surge and boost spiking put on the assembly. Marine and high-duty-cycle customers tend to focus on reliability upgrades like improved bearing packages and better-flowing oil feed setups rather than chasing peak horsepower. We handle these as part of the rebuild when the goal fits the application, but the right wheel size always depends on matching the turbo to the engine’s actual airflow.

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 TD05 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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