Mitsubishi 16G Turbo Rebuild Service

PT Turbo rebuilds and remanufactures Mitsubishi 16G 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 Mitsubishi Evo / DSM.

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Common Mitsubishi 16G Part Numbers

The following part and SKU numbers from PT Turbo’s catalog match or cross-reference to the Mitsubishi 16G:

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

Trouble Codes Often Seen on Mitsubishi Evo / DSM Equipped with the Mitsubishi 16G

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 and spellings.

• Mitsubishi TD05 16G
• Mitsubishi Evo 16G turbo
• DSM 16G turbocharger
• 16G big 16G upgrade turbo
• Mitsubishi TD05H-16G
• 4G63 16G turbo

Vehicles We Commonly See With the Mitsubishi 16G

The 16G shows up most often on 4G63-powered Mitsubishi platforms, both factory-fitted and as a popular bolt-on performance upgrade.

Mitsubishi Lancer Evolution

• Evo IV through Evo IX (1996-2007) running upgraded 16G compressor housings
• Evo VIII and IX builds where owners stepped up from the stock TD05HR
• Track and street builds targeting 350-400 wheel horsepower on the 4G63

DSM (Eclipse / Talon / Laser)

• 1990-1994 1G DSM (Eclipse GSX, Talon TSi, Laser RS) with 7-bolt and 6-bolt 4G63 swaps
• 1995-1999 2G DSM turbo models running 16G upgrades over the stock 14B/13G
• AWD turbo builds where the 16G is the go-to first big-turbo step

Galant VR-4 and Swapped Builds

• 1991-1992 Galant VR-4 (4G63T) chassis
• Custom 4G63 swaps and engine builds adopting the 16G as a reliability-minded upgrade

Common Mitsubishi 16G Failure Symptoms

• Excessive shaft play, both radial and axial, often felt as wobble in the compressor wheel by hand
• Blue smoke under boost or on deceleration from oil pushing past worn seals
• Boost that spikes then falls off, or won’t hold target on the boost gauge
• High-pitched whine or siren noise from the bearing system under load
• Grinding or rubbing sound from the compressor wheel contacting the housing
• Oil residue and wetness in the intercooler piping and compressor outlet
• Slow or laggy spool compared to how the turbo performed when fresh
• Visible nicks or missing material on the compressor blades after pulling the intake

Real Mitsubishi 16G Failures We See in Our Shop

On the Mitsubishi 16G units we rebuild, the damage almost always traces back to how hard these cars get pushed.

• We frequently see over-speed damage from aggressive tuning. Owners chase more boost than the wheel was designed for and the compressor blade tips show stress cracking and bending, sometimes with the wheel actually rubbing the housing.
• Thrust bearing wear under sustained boost is the single most common failure on these. Long pulls and high-load track sessions overload the thrust surface, and we measure the excess axial play the moment the customer’s unit hits the bench.
• Compressor wheel damage from foreign object ingestion comes in regularly, usually from a torn or missing air filter or debris left in the intake piping after a build. The leading edges get chewed up and the wheel goes out of balance.
• We see oil coking in the center section on cars that get shut down hot, which cooks the bearing oil supply and accelerates seal and bearing wear.
• On higher-mileage DSM cars we pull a lot of 16Gs with sloppy journal bearings from years of marginal oil and missed change intervals on the 4G63.

Preventing Future Mitsubishi 16G Failures

A few habits go a long way toward keeping a freshly rebuilt 16G alive on a hard-driven 4G63.

• Change oil every 3,000 miles with the correct grade, and more often on track-driven cars, since the 16G lives on clean oil pressure
• Let the turbo cool down for a minute or two after hard runs before shutdown to prevent oil coking in the center section
• Allow the engine to reach temperature before building boost so the bearings get full oil flow first
• Run a properly sealed, intact air filter and inspect intake piping for debris before startup to avoid foreign object ingestion
• Keep tuning realistic for the wheel’s capacity to avoid over-speeding the compressor
• Check the entire intake and intercooler system for boost leaks regularly, since leaks make the turbo work harder to hit target
• Verify oil feed and drain lines are clear and unrestricted any time the turbo is serviced

Common Mitsubishi 16G Upgrade Paths

Because the 16G is itself a performance platform, customers rebuilding one often ask about taking it further. The most common questions are about upgraded billet compressor wheels for better airflow and over-speed durability, stronger thrust bearing assemblies to handle sustained boost on track cars, and 360-degree thrust setups for added margin under high load. Some buyers ask about extended-tip or higher-flow wheels to push the 16G toward its airflow ceiling, while others simply want a clean OEM-spec rebuild that returns the unit to reliable factory behavior. We can walk you through what your goals support during the rebuild.

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 16G 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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