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Deutz TCD 3.6 L4 Doser DEF Pump 2011-2019: OEM 4603859

DEUTZ TCD 3.6 L4 DOSER DEF PUMP 2011-2019: OEM 4603859

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,895.00

CORE CHARGE:

$250.00
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 NUMBER4603859
PART TYPEDoser DEF Pump
BRANDTamerx Diesel Products
ENGINE MAKEDeutz
ENGINE TYPETCD 3.6 L4
YEAR2011-2019
PART NUMBER4603859RM

PRODUCT DESCRIPTION

This is a Genuine New, Tamerx Doser DEF Pump, Tamerx part number 4603859RM ( OEM Part Number 4603859 ).This part is primarily made for a Deutz TCD 3.6 L4, production years 2011-2019, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM4603859
Additional OEM4603859

ADDITIONAL DETAILS

CONDITIONGenuine New
UPC / Barcode
WEIGHT8.00 LBS

SHIPPING OPTIONS

Ship Weight : 8.00 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.


The OEM 4603859 Doser DEF Pump is designed for Deutz TCD 3.6 L4 engines manufactured between 2011 and 2019, delivering accurate metering of diesel exhaust fluid to support proper aftertreatment function. Built to original equipment specifications, this pump ensures reliable dosing working conditions and seamless integration with the SCR (Selective Catalytic Reduction) system. It plays a key role in emissions control by maintaining the correct DEF flow rate and pressure, helping engines stay compliant with environmental regulations. With a direct-fit design, installation is straightforward and requires no system modifications. This unit is ideal for replacing a failed pump and restoring emissions system integrity in off-road and industrial equipment.

FITMENT CHART

YEARMAKEENGINE(S)
2011Deutz TCD 3.6 L4
2012Deutz TCD 3.6 L4
2013Deutz TCD 3.6 L4
2014Deutz TCD 3.6 L4
2015Deutz TCD 3.6 L4
2016Deutz TCD 3.6 L4
2017Deutz TCD 3.6 L4
2018Deutz TCD 3.6 L4
2019Deutz TCD 3.6 L4

PEOPLE ALSO ASKS | BLOG(S)

The Deutz TCD 3.6 L4 engine is widely used in various industries, and maintaining optimal emissions control is critical for compliance and engine performance. The Doser DEF Pump (OEM 4603859) plays a crucial role in ensuring the proper delivery of Diesel Exhaust Fluid (DEF) to reduce harmful emissions. Understanding its function and how to maintain it is key to prolonging the life of your engine and meeting emissions standards.

Importance of the Deutz TCD 3.6 L4 Doser DEF Pump

  • Accurate DEF Delivery
    • Ensures that the correct amount of DEF is injected into the exhaust system to effectively reduce NOx emissions.
  • OEM Quality and Fit
    • Designed specifically for the Deutz TCD 3.6 L4 engine, guaranteeing optimal compatibility and performance.
  • Emissions Compliance
    •  Helps the engine meet stringent emissions regulations by keeping harmful pollutants at bay.
  • Durability
    • Built to endure the demanding conditions of industrial and commercial use, ensuring long-lasting functionality.
  • Essential for SCR Systems
    • Integral to the Selective Catalytic Reduction (SCR) system, ensuring the right DEF mixture for cleaner exhaust.

Maintenance Tips for the Deutz TCD 3.6 L4 Doser DEF Pump

  • Use Quality DEF
    • Always use high-quality DEF that meets industry standards to prevent clogging and malfunction.
  • Regular Cleaning
    • Ensure the DEF pump and associated components are free from debris or contamination that could hinder its performance.
  • Monitor DEF Levels
    • Regularly check DEF levels and replenish as needed to avoid low DEF issues, which can impact emissions control.
  • Timely Replacement
    • If you notice any errors or poor DEF delivery, replacing the pump with OEM 4603859 can prevent more extensive engine problems.

The Deutz TCD 3.6 L4 Doser DEF Pump (OEM 4603859) is essential for keeping your engine’s emissions under control while ensuring optimal performance. Proper maintenance of the DEF system, including the pump, will help your engine run efficiently while staying compliant with emissions regulations. At TamerX Diesel Parts, we offer high-quality, genuine OEM parts to ensure your Deutz engine remains in peak condition. Trust us for your DEF pump needs and more.

The Doser DEF pump is a crucial component in modern diesel engines, responsible for delivering the precise amount of Diesel Exhaust Fluid (DEF) into the exhaust stream to reduce harmful emissions. When a Doser DEF pump fails, it can disrupt the entire emission control system, affecting engine performance and compliance with environmental regulations. Understanding the common causes of Doser DEF pump failure can help prevent costly repairs and keep your engine running smoothly.

Common Causes of Doser DEF Pump Failure:

  • Contaminated DEF Fluid

    • Impurities such as dirt, dust, or other contaminants in the DEF can block the pump and cause it to malfunction. Clean, high-quality DEF is essential for maintaining pump health.

  • DEF Crystallization

    • DEF can crystallize if exposed to temperature extremes, especially cold weather. These crystals can clog the pump and prevent the fluid from flowing correctly.

  • Electrical Failures

    •  The Doser DEF pump relies on electronic controls to operate efficiently. Electrical faults such as damaged wiring, failed sensors, or control module errors can cause the pump to fail.

  • Overheating

    •  Excessive heat from the engine or exhaust system can damage the pump's internal components, leading to premature wear and failure.

  • Improper DEF Mixture

    • Using DEF that doesn’t meet the proper urea-to-water ratio or mixing with other fluids can lead to clogs or pump damage, reducing its functionality.

  • Lack of Maintenance

    • Inadequate system maintenance can allow buildup in the DEF lines, leading to pump failure. Regular system inspections can prevent these issues from worsening.

Doser DEF pump failure can result from factors like contaminated DEF fluid, crystallization, electrical failures, or improper mixtures. To ensure longevity and efficiency, regular maintenance and using high-quality DEF fluid are crucial. Addressing any early signs of pump malfunction can help prevent costly repairs and ensure your vehicle remains compliant with emissions standards.

Check the supply lines for leaks or restrictions, confirm correct electrical connection, and verify that the DEF is clean and within spec.

It delivers precise amounts of Diesel Exhaust Fluid (DEF) into the SCR system to reduce NOx emissions as required by Tier 4 Final regulations.

Verify all electrical connections, inspect for blown fuses, check for corrosion at the harness, and confirm that the system detects the fluid level.

Inadequate dosing can cause high NOx readings, SCR inefficiency, and eventually trigger engine derate and emission-related warning lights.

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