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Caterpillar 3406 Fuel Injector : OEM 4W7018 ( Set of 6 )

CATERPILLAR 3406 FUEL INJECTOR : OEM 4W7018 ( SET OF 6 )

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,195.00

CORE CHARGE:

$300.00
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 NUMBER4W7018
PART TYPEFuel Injector
BRANDTamerx Diesel Products
ENGINE MAKECaterpillar
ENGINE TYPE3406
YEAR
PART NUMBER4W7017RM-SET

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Fuel Injector, Tamerx part number 4W7017RM-SET ( OEM Part Number 4W7018 ). 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 Caterpillar 3406, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM4W7018
Additional OEM0R3421, 4W7017, 4W7018

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode
WEIGHT12.00 LBS

SHIPPING OPTIONS

Ship Weight : 12.00 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.


Built for Caterpillar 3406 diesel engines, this OEM set of six 4W7018 fuel injectors delivers factory-grade precision for consistent fuel delivery and dependable engine working conditions. Each injector is manufactured to original equipment standards, making it a direct-fit replacement for worn or malfunctioning components. Commonly used in heavy-duty trucks and industrial equipment, this set is ideal for maintaining engine reliability during routine service or repairs. Designed for straightforward installation, these injectors help reduce downtime and support continued operation in demanding environments.

PEOPLE ALSO ASKS | BLOG(S)

The fuel injectors in your Caterpillar 3406 engine are critical to its smooth operation. The Caterpillar 3406 Fuel Injector (OEM 4W7018) set of six is specifically designed to provide accurate fuel delivery, ensuring that your engine runs efficiently and reliably. Understanding how this component functions can extend the life of your engine and improve overall performance.

Key Functions of the Caterpillar 3406 Fuel Injector

  • Precise Fuel Delivery
    •  These injectors ensure that the right amount of fuel is delivered to the combustion chamber, maximizing engine efficiency.
  • Improved Fuel Economy
    • Proper fuel injection reduces fuel wastage and improves fuel economy, saving costs in the long run.
  • Cleaner Combustion
    • Accurate fuel delivery promotes cleaner combustion, which helps reduce emissions and improves engine health.
  • Durable Construction
    • The OEM 4W7018 injectors are built to withstand heavy-duty use, ensuring long-lasting performance under tough conditions.

The Caterpillar 3406 Fuel Injector (OEM 4W7018) set of six is essential for maintaining your engine’s fuel efficiency and ensuring smooth operation. Regular maintenance and timely replacement of these injectors will help keep your engine running at peak performance. For high-quality fuel injectors and other diesel parts, TamerX Diesel Parts is your go-to source for reliable solutions.

uel injectors are crucial components in your vehicle’s engine, ensuring the right amount of fuel is delivered to the combustion chamber for optimal performance. However, like any mechanical part, fuel injectors can fail over time. Understanding the causes of fuel injector failure can help you prevent costly repairs and maintain your engine's efficiency.

Common Causes of Fuel Injector Failure

Several factors can contribute to fuel injector failure, and knowing these causes can help you spot issues early:

  • Contaminated Fuel
    • Poor-quality or dirty fuel can clog the injectors, leading to reduced fuel flow and eventual failure. Dirt, debris, and other contaminants can damage the internal components of the injector.
  • Wear and Tear
    • Over time, normal use can cause the injector’s internal parts to wear out. This natural degradation is especially common in high-mileage vehicles.
  • Fuel Additives
    • While fuel additives are designed to clean the system, using the wrong type or too much can damage the fuel injectors by causing buildup or corrosion.
  • Heat Soak
    •  Excessive engine heat can cause the fuel injectors to overheat, leading to cracking or other damage in the injector body.
  • Electrical Issue
    •  Faulty wiring or electrical components in the injector system can cause injectors to malfunction or fail to deliver fuel properly.
  • O-Ring Failure
    • The O-rings that seal the injector can dry out, crack, or wear over time, leading to leaks and improper fuel delive

Fuel injectors play a vital role in engine performance, and their failure can lead to decreased efficiency, power loss, and even engine damage. By understanding the common causes of fuel injector failure and practicing regular maintenance, you can keep your fuel system in top shape. Addressing issues early can help prevent costly repairs and keep your vehicle running smoothly for years to come.

You’ll need a torque wrench, injector height gauge, and Caterpillar-specific tools to ensure proper injector lash and seating.

Yes, a single malfunctioning injector can disrupt fuel balance and cause engine shake or irregular idle RPMs.

Dusty environments, poor fuel quality, and inconsistent maintenance schedules can significantly shorten injector life.

The 4W7018 fuel injector delivers precise amounts of diesel fuel into the combustion chamber, ensuring efficient engine operation.​

Caterpillar Fuel Injectors