6506215020 KTR90-332E Turbocharger for Komatsu high-performance Heavy Duty Industrial Turbocharger

$468.00

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100K+ Customer Trust

Selected by industry leaders worldwide for proven quality.

1-Year Standard Warranty

12 months coverage to guarantee long-term performance and reliability.

Fast Dispatch

Guaranteed shipping for all in-stock items within 24 hours.

Deep Customization Options

Bespoke solutions tailored exactly to your project's technical specifications.

Part Number:​​ 6506-21-5020;6506215020;6506-21-5021 Type: Turbocharger
Model:​ Previous Version:
Engine Model: Application:
Condition:​ Brand New Material: Alloy / K18 Steel
Fuel Type: Diesel Purpose: For replace/repair
Warranty: 12 Months Standard: OEM Standard
Cooling: Payment Terms: L/C, T/T, Western Union Paypal
Package: Neutral MOQ: 1/pcs

6506215020 KTR90-332E Turbocharger for Komatsu

Heavy-Duty Turbocharger for Mining & Industrial Power Systems

The 6506215020 KTR90-332E turbocharger is engineered specifically for Komatsu heavy equipment engines operating in demanding environments such as mining sites, construction projects, marine auxiliary systems, and industrial power generation.

Komatsu machinery is known for its reliability and strength, but even the most durable diesel engines rely heavily on a properly functioning turbocharger. The turbo plays a critical role in increasing air intake pressure, improving combustion efficiency, and maximizing engine output. When a turbo begins to fail, operators may notice reduced power, increased fuel consumption, excessive exhaust smoke, and slower machine response.

The KTR90-332E turbocharger is designed as a direct replacement solution that restores OEM-level performance and ensures long-term reliability in harsh working environments.


6506215020 Key Specifications

Specification Details
Model KTR90-332E
OEM Part Number 6506215020
Turbo Type Heavy-duty diesel turbocharger
Application Komatsu industrial / construction engines
Cooling System Oil-cooled
Material High-temperature resistant alloy
Bearing Type High-strength journal bearing system
Balance Level Dynamic high-speed balancing
Condition Brand new
Installation Type Direct OEM replacement
Fuel Type Diesel
Usage Mining, construction, industrial machinery

6506215020 Application & Compatibility

The KTR90-332E turbocharger is widely used in Komatsu heavy equipment engines designed for high-load and continuous operation.

Typical Equipment Applications

  • Komatsu mining trucks
  • Komatsu excavators
  • Komatsu wheel loaders
  • Komatsu bulldozers
  • Industrial diesel power units
  • Heavy-duty generator systems

Engine Compatibility

This turbo is commonly associated with Komatsu diesel engine platforms using KTR-series turbo systems. Compatibility may vary depending on engine model and production year.

Always confirm OEM number 6506215020 before ordering to ensure exact fitment.


Performance Benefits

Restored Engine Power Output

A properly functioning KTR90-332E turbo ensures optimal air compression, restoring full engine horsepower and torque performance.

Improved Fuel Efficiency

Efficient air-to-fuel combustion reduces fuel consumption, especially in long-duty cycles typical in mining and construction operations.

Enhanced Load Response

Improved turbo spool efficiency allows faster engine response under heavy load conditions.

Reduced Exhaust Emissions

Better combustion reduces black smoke and particulate emissions, helping meet environmental operation standards.

Extended Engine Life

Stable boost pressure reduces engine stress and prevents premature wear of internal components.


Technical Notes

Importance of Lubrication System

The turbocharger depends entirely on clean, high-pressure engine oil. Poor lubrication is the most common cause of turbo failure. Always ensure:

  • Clean oil supply lines
  • Proper oil pressure
  • Fresh oil and filters during installation

Air Intake System Cleanliness

Contaminants entering the compressor can damage blades and reduce turbo efficiency. Before installation:

  • Clean or replace air filters
  • Inspect intake piping
  • Remove any debris in intercooler system

Proper Installation Procedure

Professional installation is strongly recommended. Key steps include:

  • Pre-lubricating turbo before startup
  • Checking oil flow before engine ignition
  • Ensuring correct sealing of exhaust and intake joints

Turbo Break-In Recommendation

After installation, allow the engine to idle for several minutes before applying load to ensure stable oil circulation and bearing protection.


Manufacturing Quality Control

Every 6506215020 KTR90-332E turbocharger undergoes strict quality control procedures:

  • High-speed dynamic balancing testing
  • Precision CNC machining inspection
  • Boost pressure performance testing
  • Thermal resistance verification
  • Bearing durability testing

These processes ensure each unit meets or exceeds OEM performance standards.


Common Symptoms of Turbo Failure

Operators should inspect the turbocharger if any of the following symptoms appear:

  • Loss of engine power
  • Excessive black or blue smoke
  • Whistling or grinding noise from turbo
  • High oil consumption
  • Slow engine response under load
  • Oil leakage around turbo housing
  • Check engine warning (if equipped)

Early replacement can prevent costly engine damage.


B2B Supply & Wholesale Service

We provide professional B2B supply solutions for global distributors, fleet operators, and equipment service companies.

Wholesale Capabilities

  • Bulk order supply
  • Stable production capacity
  • OEM replacement parts availability
  • Fast global shipping support
  • Export documentation provided
  • Flexible packaging options

Private Label Support

We support long-term business partners with:

  • Custom branding
  • Neutral packaging
  • Logo labeling options
  • SKU management support

Target Industries

  • Mining equipment suppliers
  • Heavy machinery distributors
  • Construction service companies
  • Diesel engine rebuild workshops
  • Industrial equipment maintenance firms

Why Choose Our KTR90-332E Turbocharger?

OEM-Level Fit and Performance

Designed to match original Komatsu specifications for seamless installation.

Heavy-Duty Durability

Built for continuous operation in extreme environments such as mines and construction sites.

Stable Supply Chain

Ideal for distributors requiring consistent inventory and predictable lead times.

Cost-Effective Replacement

Offers a reliable alternative to expensive OEM turbochargers without compromising performance.


Maintenance Recommendations

To ensure maximum turbo lifespan:

  • Use high-quality diesel engine oil
  • Replace oil and air filters regularly
  • Avoid engine shutdown immediately after heavy load operation
  • Inspect intake system frequently
  • Maintain proper engine cooling system condition

Proper maintenance significantly extends turbo service life.


Product FAQ

Is the KTR90-332E turbocharger brand new?

Yes, all units are brand new and fully tested before shipment.

Is OEM number 6506215020 guaranteed fit?

Yes, but customers should always verify engine model compatibility before purchase.

Can this turbo be used in all Komatsu machines?

No, compatibility depends on specific engine configurations using KTR90-332E systems.

Does the turbo come pre-balanced?

Yes, each unit is dynamically balanced at high speed before delivery.

What causes turbo failure in Komatsu engines?

Common causes include:

  • Oil contamination
  • Insufficient lubrication
  • Excessive heat cycles
  • Foreign object damage
  • Poor maintenance practices

Do you offer wholesale pricing?

Yes, we provide competitive B2B pricing for distributors and bulk buyers.

What is the typical service life?

With proper maintenance, the turbo can last thousands of operating hours in heavy-duty conditions.

Can you support OEM packaging or branding?

Yes, private label and customized packaging options are available for long-term partners.


Order Your 6506215020 KTR90-332E Turbocharger Today

The KTR90-332E turbocharger is a reliable, high-performance solution for Komatsu diesel engines operating in demanding industrial environments. Whether you are a distributor, repair workshop, or equipment operator, this turbo provides the durability, efficiency, and performance required for heavy-duty applications.

Contact us today for pricing, availability, and professional B2B cooperation opportunities.

6506215020

6506215020-KTR90-TURBOCHARGER 6506215020-KTR90-TURBOCHARGER 6506215020-KTR90-TURBOCHARGER

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Frequently Asked Questions

We provide a wide range of turbocharger spare parts to support both remanufacturing and repairs. Our product lineup includes practically everything you might need. Here are some of the key parts we offer:

  • CHRA (Core Assemblies): Complete cartridge core units for various turbo models.
  • Turbine Wheels & Shafts: Turbine wheel-and-shaft assemblies available in different sizes and materials.
  • Compressor Wheels: High-precision compressor wheels made from durable high-strength alloys (aluminum or even titanium, depending on the application).
  • Bearing & Seal Kits: Overhaul kits with journal bearings, thrust bearings, seals, and rings for rebuilding turbos.
  • Actuators & Components: Wastegate actuators (mechanical) and electronic actuators, plus related small parts.

These spare parts cover most major turbocharger brands and models for commercial diesel engines as well as passenger vehicles. If you’re looking for something specific, just let us know the turbo model or the OEM part number, and we’ll quickly check if we have it available.

Making sure you get the right part is really important. The best way is to use the original equipment manufacturer (OEM) part number or your turbo’s model number as a reference when you order. Every turbocharger usually has an ID tag or an engraved number on it — if you give us that info, we can find the exact spare part you need.

Our sales engineers are also ready to help. If you let us know your engine model, the turbo’s model (or serial number), and maybe what problem you’re trying to fix or which component you’re replacing, we can cross-check and guide you to the right part. This way you’ll have a correct match and avoid any mix-ups.

We can also provide product catalogs or technical datasheets if you want to double-check the specifications yourself before buying. Just let us know, and we’ll get those to you.

Generally, we don’t have a strict minimum order for our standard parts — you can even order just one piece if that’s all you need. We know remanufacturing shops sometimes want to test a part’s quality first, so small sample orders are totally fine with us.

If you’re looking to buy in bulk, we can certainly discuss volume discounts. The only time we might have a minimum order is if it’s a very specialized or custom-made component, due to the production requirements. In those cases, we’d let you know upfront if any minimum applies.

In most situations, whether you need a single item or a large batch, we’re happy to accommodate. We pride ourselves on being flexible and building long-term relationships with our clients.

We offer a standard 12-month warranty on all our turbocharger spare parts. The clock starts from the date we ship them out, unless we’ve made a different agreement (for example, starting from the installation date in some cases). In short, if any part fails due to a manufacturing defect within those 12 months, it’s covered under our warranty.

If you do encounter a problem that you believe is our fault within the warranty period, just let us know. We’ll typically ask for some details about what happened (maybe a report or photos) so we can understand the issue. Once we’ve confirmed it’s a warranty case, we’ll send you a replacement part or offer you a full refund/credit for that item. We stand behind our products, so if there’s a genuine quality problem, we’ll make it right as quickly as possible.

Our warranty covers failures that result from defects in our parts (materials or workmanship) under normal use. For example, if a compressor wheel had a casting flaw or a cartridge assembly wasn’t balanced properly at the factory and it causes a premature failure, that’s on us and would be covered.

However, there are some situations that are not covered by our warranty. Here are the main exclusions:

  • Improper Installation or Misuse: If the part was installed incorrectly or used incorrectly — e.g. not priming the turbo with oil before startup, wrong gaskets, misassembly.
  • External Factors (Oil Starvation or Contamination): Failures caused by inadequate or dirty oil (e.g. blocked feed lines or poor oil quality).
  • Foreign Object Damage: Debris entering the turbo (intake or exhaust) and damaging parts.
  • Operating Outside Design Limits: Engine or turbo run beyond design parameters (overspeed, excessive exhaust temperatures, etc.).
  • Normal Wear and Tear: Gradual wear of consumables (e.g. seals) under regular usage.

In essence, if a part fails because it had a defect, it’s covered. But if it fails due to misuse, external factors, or normal wear, it’s not. If you ever need to claim warranty, we’ll review what happened (often via photos or a failure report) and may examine the part. That ensures we handle claims fairly and transparently.

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