Loading...

Komatsu 6.7L Turbo Assembly 2014-2018: OEM 5321720

KOMATSU 6.7L TURBO ASSEMBLY 2014-2018: OEM 5321720

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$6,670.00

CORE CHARGE:

$2,000.00
iCORE DISCLAIMER: The CORE charge is a 30 day hold and will not be processed as long as the CORE is returned within 30 days. If you do not have a CORE or fail to return the CORE within 30 days, the CORE charge hold amount will be processed at that time.

AVAILABILITY IN STOCK
OEM NUMBER5321720
PART TYPETurbo Assembly
BRANDTamerx Diesel Products
ENGINE MAKEKomatsu
ENGINE TYPE6.7L
YEAR2014-2018
PART NUMBER5321720RM-WA
ADDITIONAL NOTESHE300/ W/ Actuator

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Turbo Assembly, Tamerx part number 5321720RM-WA ( OEM Part Number 5321720 ). All parts are proudly remanufactured in the U.S.A. to the highest of OEM standards, and improvements are often applied to the original design in the remanufacturing process. This part is primarily made for a Komatsu 6.7L, production years 2014-2018, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: HE300/ W/ Actuator

OEM NUMBERS

Primary OEM5321720
Additional OEM5321720, 5552881

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490552487
WEIGHT58.00 LBS

SHIPPING OPTIONS

Ship Weight : 58.00 LBS
UPS Ground, 2nd Day Air, Next Day Air

SHIPPING POLICY

Tamerx Diesel Products ships via UPS Ground. Next day air shipping can be arranged for a reasonable price of anywhere from $50.00 - $100.00 depending on the weight of the product and your location. We will do everything we can to make sure that you get the service you need. We understand how important it is to receive your order as quickly as possible.
In most cases Tamerx Diesel Products only needs one address, as long as your product is shipping to the same location as your billing information. In order to eliminate credit card fraud, your billing information must match the credit card you provide.

The terms, conditions, and details of our warranty vary from product to product. Specific warranty details can be found below.

Tamerx Diesel Products provides a replacement warranty on all of our parts. The duration and mileage limitations of the warranty vary by product and are specified on the product's detail page/item listing.

Please note that the warranty covers replacement of the part and the cost of shipping the replacement part to you only. It does not cover any shop, labor, towing, or any similar or related costs. This is not a "money back guarantee".

If you experience a problem with your part or it is not functioning properly, the correct warranty procedure is to call us at (510) 257-1777 (8:00 AM - 5:00 PM ET Monday through Friday). Be sure to have your order number and/or other relevant order information ready so we can easily locate your order and resolve your issue as quickly as possible. From that point, we will review with you any troubleshooting steps that may need to be taken and other areas or systems that can be checked to rule out external problems contributing to your part's issue. If a replacement is determined to be necessary, we will then arrange for your replacement part to ship out ASAP and issue any necessary return shipping labels and/or documents.

As is the case for the majority of the diesel products sold on Tamerx Diesel Products, your part's warranty is active as soon as you install it. In some other cases, warranty activation is contingent upon you sending us your core (i.e., your old part). Tamerx Diesel Products will provide you a return shipping label for parts that have a warranty with a core return condition. When we have received your core return, the part's warranty coverage begins. We reserve the right to void the product warranty if your core is not received within the allotted time, or if it isn't received at all. If the warranty for the diesel part you are purchasing has a core return requirement, it will be clearly noted on the product detail page/item listing.

What is a Core Charge?

A core charge (also called "core deposit") is similar to the deposit you might pay for a can or bottle of soda and is a standard requirement in the auto parts industry. For example, in many states, to promote recycling, you pay a deposit when you purchase a can of soda and receive your deposit back when you return the empty can. Many automotive parts have a core charge, or core price, that works in essentially the same way as a soda can deposit.

30 Day Core Charge Hold

You authorize Tamerx Diesel Products, to hold your credit card for the specified core charge amount and that you agree to return your core with 30 days of receiving the purchased part. When we have received your core return, the hold is released and the core charge payment is canceled.

The customer, or parts buyer, is responsible for any shipping costs associated with core returns unless otherwise specified in the product listing/detail page. Tamerx Diesel Products offers prepaid UPS shipping labels (SKU numbers UPS-CR1 and UPS-CR2) for use in returning your core that are available for purchase on our website during your shopping/order process.

The shipping label you will need to use for the core return is dependent upon what part you are purchasing. UPS-CR1 is good for cores weighing up to 20 pounds. UPS-CR2 is appropriate for shipping cores weighing 21 pounds or more. You must include enough information with the core return that clearly identifies it as a.) a Core Return, and b.) contains enough information we can use to clearly associate the core return with your order. Including a copy of the invoice or packing slip that came with the original shipment, clearly marked "Core Return", is ideal. Alternately, you can include a note marked as "Core Return" that includes your order number, full name and address, and phone number or other contact information. Failure to include this information with your returned core will most likely delay any due core credit being issued and/or delay any applicable warranty activation. Core returns need to be for the exact part purchased and cannot be damaged. Substituting another part in place of the part you have purchased is not acceptable.

All fluids must be drained.

If you have purchased a set or a parts package, you will need to return cores for all components of the set. For example, if you have purchaed a high pressure oil pump with an IPR valve, you will need to return both HPOP and IPR valve cores to receive proper credit. If you have purchased an EGR cooler/EGR valve package, your core return must consist of an EGR cooler core and an EGR valve core, or core credit will not be given.

Core Charges are often mandated by state legislature, and, as such, the actual core charge and taxes on the charge may vary depending on the state in which you buy your part. The Tamerx Diesel Products core charge presented to you online today with your item is representative of the most common core charge.


Boost your machine’s power and efficiency with the Komatsu 6.7L Turbo Assembly 2014–2018 (OEM 5321720), engineered to deliver stronger boost and responsive performance. This complete turbo assembly is built to OEM standards for a reliable fit and long service life in demanding working conditions. Designed to improve airflow and increase engine efficiency, it helps your Komatsu operate at peak capability. Upgrade with a turbo that stands up to tough jobs and keeps your equipment running stronger, mile after mile.

FITMENT CHART

YEARMAKEENGINE(S)
2014Komatsu 6.7L
2015Komatsu 6.7L
2016Komatsu 6.7L
2017Komatsu 6.7L
2018Komatsu 6.7L

PEOPLE ALSO ASKS | BLOG(S)

A turbocharger assembly is a cornerstone of modern diesel engine performance, boosting power and efficiency by forcing more air into the combustion chamber. For Komatsu 6.7L engines from 2014 to 2018, a properly functioning turbo assembly helps support fuel economy, engine response, and overall reliability—especially in demanding work environments. The Komatsu 6.7L Turbo Assembly OEM 5321720 from Tamerx Diesel Parts is designed to match original equipment specifications, making it a dependable replacement choice when a worn or damaged turbo unit needs to be replaced.

  • Increases engine air intake by compressing incoming air, enabling more complete combustion and helping enhance power output and responsiveness

  • Exact fit for Komatsu 6.7L engines (2014–2018) ensuring proper installation, seamless integration, and reliable operation with factory exhaust and intake systems

  • Supports improved fuel efficiency by optimizing the air-to-fuel ratio, which helps the engine make the most of every drop of fuel under varied load conditions

  • OEM-grade construction (5321720) providing dependable durability, consistent boost delivery, and compatibility with original turbocharger components

  • Ideal for heavy-duty and continuous-use applications where sustained turbo performance and reliable airflow are essential for long-term operation

Replacing a worn or failing turbo assembly with the Komatsu 6.7L Turbo Assembly OEM 5321720 from Tamerx Diesel Parts helps restore proper airflow, support combustion efficiency, and maintain dependable engine performance. Investing in a high-quality, OEM-matched turbo assembly ensures your engine continues to operate with the power, efficiency, and reliability your work demands.

A turbo assembly operates under extreme heat and high rotational speeds, making it one of the most stressed components in an engine. While turbos are built for durability, certain conditions and maintenance issues can cause them to fail prematurely. Understanding these causes helps reduce the risk of costly turbo damage.

  • Poor lubrication: Low oil pressure, dirty oil, or infrequent oil changes can quickly damage turbo bearings.

  • Contaminated oil: Debris or sludge in the oil can score internal turbo components.

  • Excessive heat: Overheating or lack of proper cool-down can damage seals and bearings.

  • Foreign object damage: Dirt or debris entering the intake or exhaust can harm the compressor or turbine.

  • Exhaust system issues: Restricted DPF or exhaust leaks can increase back pressure and strain the turbo.

  • Normal wear over time: High mileage and extended use eventually lead to component fatigue.

Turbo assembly failure is often linked to lubrication and heat-related issues rather than the turbo itself. Proper oil maintenance, clean airflow, and early diagnosis of engine or exhaust problems help extend turbo life and maintain reliable engine operation.

Turbo assemblies should be visually checked during regular maintenance intervals or if you notice performance issues. Early detection of oil leaks or shaft play can prevent more serious damage.

Sudden turbo failure can result in a significant loss of power and thrust, and may cause increased exhaust smoke. It may also trigger engine fault codes or put the engine in protective derate mode.

Keeping engine oil clean and at proper levels is essential, as turbo bearings rely on oil for lubrication. Regular oil changes and quality filtration help prolong the assembly’s life.

Technicians often recommend checking and possibly replacing gaskets, oil lines, and clamps along with the turbo. Updating related parts ensures proper sealing and long-term reliability.

Komatsu Turbo Assemblys

PRODUCT VIDEOS