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Komatsu PC170LC-11 SCR Outlet Catalyst Module 2013-2021: OEM 6544-01-0090

KOMATSU PC170LC-11 SCR OUTLET CATALYST MODULE 2013-2021: OEM 6544-01-0090

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$15,995.00

CORE CHARGE:

$1,000.00
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 NUMBER6544-01-0090
PART TYPESCR Outlet Catalyst Module
BRANDTamerx Diesel Products
ENGINE MAKEKomatsu
ENGINE TYPEPC170LC-11
YEAR2013-2021
PART NUMBER6544-01-0090RM-SCR
WARRANTY
One Million Miles or One Year

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx SCR Outlet Catalyst Module, Tamerx part number 6544-01-0090RM-SCR ( OEM Part Number 6544-01-0090 ). 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 PC170LC-11, production years 2013-2021, and comes with a One Million Miles or One Year Warranty.

OEM NUMBERS

Primary OEM6544-01-0090
Additional OEM6544-01-0090, N654401D091

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490558724
WEIGHT90.00 LBS

SHIPPING OPTIONS

Ship Weight : 90.00 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 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, 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 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.


Designed to maintain effective exhaust emissions control in demanding construction environments, the Komatsu PC170LC-11 SCR Outlet Catalyst Module (2013–2021) OEM 6544-01-0090 serves as a critical component of the excavator’s diesel aftertreatment system. Manufactured according to original equipment specifications, this catalyst module is designed for proper fitment with applicable Komatsu PC170LC-11 excavators within the specified model years. It operates within the selective catalytic reduction (SCR) system, helping convert nitrogen oxide (NOx) emissions into nitrogen and water vapor before treated exhaust gases are released. Its rugged construction is designed to withstand elevated exhaust temperatures, continuous vibration, extended operating hours, and challenging conditions commonly encountered in excavation and heavy equipment applications. Suitable for construction equipment owners, maintenance technicians, and professional diesel repair facilities, this OEM SCR outlet catalyst module provides a dependable replacement solution for maintaining proper emissions system functionality, consistent exhaust treatment, and reliable long-term excavator operation.

FITMENT CHART

YEARMAKEENGINE(S)
2013Komatsu PC170LC-11
2014Komatsu PC170LC-11
2015Komatsu PC170LC-11
2016Komatsu PC170LC-11
2017Komatsu PC170LC-11
2018Komatsu PC170LC-11
2019Komatsu PC170LC-11
2020Komatsu PC170LC-11
2021Komatsu PC170LC-11

PEOPLE ALSO ASKS | BLOG(S)

The Komatsu PC170LC-11 SCR Outlet Catalyst Module OEM 6544-01-0090 is a diesel exhaust aftertreatment component listed for compatible Komatsu excavators from 2013–2021. This module is associated with the Selective Catalytic Reduction (SCR) system, which helps reduce harmful nitrogen oxide (NOx) emissions during engine operation.

Key Functions of the Komatsu SCR Outlet Catalyst Module

The Komatsu PC170LC-11 SCR Outlet Catalyst Module supports proper diesel exhaust treatment through several essential functions:

  • Emission Reduction
    • Helps reduce harmful nitrogen oxide emissions released through the exhaust system.
  • Exhaust Treatment
    • Supports the chemical reactions necessary for cleaner diesel exhaust.
  • SCR System Integration
    • Works alongside diesel exhaust fluid (DEF) dosing equipment and exhaust sensors.
  • Environmental Compliance
    • Supports compliance with applicable diesel emission regulations.
  • Reliable Operation
    • Contributes to proper exhaust aftertreatment system function.

Why Is OEM 6544-01-0090 Important?

The Komatsu PC170LC-11 SCR Outlet Catalyst Module 2013–2021 is identified by OEM part number 6544-01-0090 for the specified replacement application.

A damaged or contaminated SCR catalyst may contribute to increased emissions, diagnostic trouble codes, and exhaust treatment problems.

Regular inspections and proper DEF maintenance help protect the Komatsu SCR catalyst module.

Always verify the equipment serial number and OEM compatibility before purchasing a replacement.

A failing SCR Outlet Catalyst Module can affect your diesel vehicle's emissions system and lead to expensive repairs. Recognizing early warning signs can help prevent further damage and maintain proper exhaust system operation.

Common Signs of a Failing SCR Outlet Catalyst Module

The Selective Catalytic Reduction (SCR) system helps reduce harmful nitrogen oxide (NOx) emissions. Watch for these common symptoms of a faulty SCR catalyst:

  • Check Engine Light
    • Dashboard warning lights may indicate SCR system malfunctions.
  • Increased NOx Emissions
    • A damaged catalyst may struggle to reduce harmful pollutants.
  • DEF Warning Messages
    • Diesel Exhaust Fluid alerts may indicate related system problems.
  • Reduced Engine Output
    • Certain SCR faults can trigger vehicle operating restrictions.
  • SCR Efficiency Fault Codes
    • Diagnostic trouble codes may indicate reduced catalyst efficiency.
  • Unusual Exhaust Odors
    • Changes in exhaust smell may suggest aftertreatment system issues.

What Causes SCR Outlet Catalyst Module Failure?

Common causes include DEF contamination, excessive exhaust temperatures, catalyst deterioration, and faulty DEF dosing components.

What Should You Do?

If you suspect SCR Outlet Catalyst Module failure, schedule a professional diesel exhaust system inspection. A qualified technician can evaluate NOx sensors, DEF injectors, and catalyst efficiency to identify the actual problem.

Early diagnosis and timely SCR catalyst repair or replacement can help prevent additional damage, reduce repair expenses, and maintain emissions compliance.

SCR-related diagnostic codes, abnormal NOx readings, emissions warnings, and unusual exhaust restrictions may indicate that the 6544-01-0090 requires inspection.

Yes, excessive deposits or damaged catalyst material can obstruct internal passages and restrict exhaust flow through the 6544-01-0090.

Yes, excessive DEF-related deposits can interfere with exhaust flow and proper SCR operation when they accumulate within the catalyst system.

Yes, temperatures beyond the intended operating range can cause thermal stress, cracking, or deterioration of the catalyst substrate inside the 6544-01-0090.

Komatsu SCR Outlet Catalyst Modules