Common Myths about Garrett Remanufactured Turbochargers

Turbochargers play a critical role in improving engine performance, fuel efficiency, and emissions. Despite their importance, remanufactured turbochargers are often misunderstood. Many myths persist around their quality, durability, and how they compare to new replacement units.

Some misconceptions even claim that counterfeit turbos perform the same as a Garrett Original Reman — which is simply not true. In this article, we break down the most common myths and provide fact‑based insights into the advanced engineering, testing, and technologies built into Garrett Remanufactured Turbochargers.

Understanding Garrett Remanufactured Turbochargers

What is a remanufactured turbocharger?

A remanufactured turbocharger is a previously used turbo that has undergone a complete, highly controlled restoration process. This includes: full disassembly, thorough cleaning and inspection, replacement or repair of worn or damaged components, precision reassembly, factory‑level calibration and testing. The goal is to return the turbocharger to like‑new condition, matching the exact specifications set by the original vehicle manufacturer.

Garrett Motion follows these specifications with strict discipline, applying advanced testing, engineering expertise, and OE‑grade processes to deliver industry‑leading remanufactured turbochargers that meet the same performance, durability, and reliability standards as new Garrett units.

Read more here!

Myth 1: Remanufactured, Refurbished, and Used Turbochargers Are All the Same

One of the most common misconceptions in the market is the belief that remanufactured, refurbished, and used turbochargers are identical. In reality, these three categories differ significantly in terms of process, quality, durability, and compliance with OEM specifications.

Below is a breakdown of each process to help clarify the differences.

Remanufactured Turbos

A Garrett Remanufactured Turbocharger undergoes a detailed, fully controlled process designed to bring the unit back to like‑new condition. This is the only category that restores the turbocharger to its original factory performance, durability, and emissions standards.

Garrett Motion follows a strict, OEM‑grade methodology that includes:

Disassembly: The turbocharger is completely dismantled into individual components.

Cleaning: All parts are thoroughly cleaned to remove carbon, oil residue, oxidation, and contaminants.

Inspection: Each component is inspected to identify wear, cracks, or structural damage.

Balancing: Critical rotating assemblies are precision‑balanced to OEM specifications to prevent vibration and ensure optimal performance.

Replacement: Any worn, outdated, or damaged components are replaced with high‑quality parts, including upgraded components if improvements have been introduced since the original manufacture.

Reassembly: The turbocharger is reassembled using controlled, OE‑grade processes.

Testing: Every unit undergoes rigorous testing to ensure it meets original equipment manufacturer (OEM) specifications for performance, pressure, emissions, and reliability.

Refurbished Turbos

Refurbished turbochargers undergo a restoration process that is less comprehensive than full remanufacturing. Instead of rebuilding the entire unit to factory standards, refurbishment typically focuses on repairing or restoring only selected components. While this can improve functionality, the scope and quality of the refurbishment can vary widely between suppliers. Because the process does not include full disassembly, balancing, or replacement of all critical components, a refurbished turbo may not achieve the same performance, durability, or reliability as a Garrett Original Reman turbocharger.

Typical Refurbishment Process:

Selective Repairs: Only specific components are repaired or replaced, depending on visible damage or known issues.

Inspection: Inspections may focus on obvious defects rather than a full assessment of internal components.

Cleaning: Surface contaminants are removed, but deep cleaning and restoration steps may be omitted.

Testing: Testing procedures differ between refurbishers and may not meet OEM standards.

Used Turbos

Used turbochargers are taken from existing vehicles and may still be functional, but they do not undergo the rigorous processes applied to remanufactured units. These turbos typically receive only basic inspection or minor repairs—if any at all. Because there is no verified history, mileage record, or detailed condition report, performance levels vary widely, and reliability cannot be guaranteed. For these reasons, a used turbocharger is unlikely to match the performance, durability, or assurance offered by a Garrett Original Reman turbocharger, which is restored to OEM specifications.

Typical Condition of Used Turbos:

Sourcing: Harvested from vehicles—often high‑mileage or accident‑damaged units.

Basic Inspection: Limited to visible issues; internal wear is rarely assessed.

Minimal Cleaning: Only surface-level cleaning is performed.

History Uncertainty: No reliable information on operating conditions, maintenance, or previous failures.

Myth 2: Counterfeit Remanufactured Turbochargers are Equally Reliable as Original Garrett Remanufactured Turbochargers

A common misconception is that counterfeit remanufactured turbochargers can deliver the same reliability and performance as Garrett Original Remanufactured Turbochargers. In reality, this myth can lead to poor engine performance, unexpected failures, and even serious vehicle safety risks.

Quality Compromises in Counterfeit Turbos

Counterfeit remanufactured turbochargers are typically produced using low‑grade materials, inconsistent processes, and poor-quality components. While these units may look similar externally, they lack the engineering precision, controlled manufacturing environment, and high‑quality parts used in genuine Garrett products.

Reliability Concerns:

Reliability is a cornerstone of Garrett’s reputation, built over years of expertise and adherence to stringent industry standards. Counterfeit turbochargers, however, are notorious for inconsistent performance and a higher likelihood of failure. This unreliability can lead to unexpected breakdowns and costly repairs, compromising the safety of both the vehicle and its occupants. In addition, counterfeit turbos are unlikely to achieve the emissions performance of authentic Garrett products.

Engine Safety at Risk:

Turbochargers play a critical role in engine efficiency and performance. Opting for a counterfeit unit can compromise the integrity of the engine system, putting the entire vehicle at risk. Inferior materials and subpar craftsmanship in counterfeit turbochargers can lead to malfunctions, causing irreversible damage to the engine and posing a serious safety hazard.

Myth 3: Garrett Remanufactured Turbochargers don’t benefit from the latest technologies

There is a common misconception surrounding Garrett Motion Remanufactured turbochargers that they fail to keep pace with technological advances.  In fact, Garrett Remanufactured turbos include uprated components that comply with the original specification.

Let’s take a closer look at the technologies present in Garrett Remanufactured turbocharger range:

VNT turbocharger technology

Vehicles featuring Garrett Remanufactured Variable Nozzle Turbine (VNT) technology benefit from optimized control of exhaust gas flow, thereby enhancing responsiveness across a broad range of engine speeds. Turbine wheel exhaust flow control results in higher torque, more power, better transient response, and cleaner combustion.

Learn more about VNT turbochargers here!

Dual-stage technology

Dual-stage technology, usually characterized by combining Variable Nozzle Turbine (VNT) functionality with a low pressure wastegate turbo, is newly available in certain regions as a remanufactured offer and represents a sophisticated approach to turbocharger design. This innovation plays a pivotal role in enhancing engine performance, offering benefits such as improved responsiveness, increased efficiency, and optimized power delivery.

Learn more about Dual Stage Technology here!

Wastegate & Free floating technology

Garrett wastegate and free-floating turbos for large highway applications are known for their track record of performing under harsh conditions. Backed by decades of experience and based on proven design, they offer a great reliability and durability.

Learn more about Wastegate & Free floating technology here!

Myth 4: Remanufactured turbochargers have no warranty

Remanufactured turbochargers are sometimes mistakenly perceived as products without warranty coverage. In fact, while this might be the case for some turbochargers, every Garrett Original Reman comes with a 2-year warranty.

Why Garrett’s 2-year Warranty matters:

Quality Assurance:

The 2-year warranty is a testament to Garrett Motion’s commitment to rigorous testing and quality control, with remanufactured units certified to meet performance standards.

Protection Against Defects:

In the rare event of a manufacturing defect or premature failure, Garrett’s warranty offers a practical remediation solution, including repair, replacement, or refund—protecting consumers against unforeseen issues.

We don’t just make turbos. We build peace of mind.

Dispelling these myths sometimes associated with remanufactured turbochargers will help vehicle owners make informed decisions based on fact not supposition.

With a Garrett Reman turbo, there’s no need to compromise on quality.

Learn more about Garrett REMAN, visit our page!