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Caterpillar 3406 Fuel Injector : OEM 4W7018

CATERPILLAR 3406 FUEL INJECTOR : OEM 4W7018

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$199.00

CORE CHARGE:

$50.00
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.

AVAILABILITYCALL FOR AVAILABILITY
OEM NUMBER4W7018
PART TYPEFuel Injector
BRANDTamerx Diesel Products
ENGINE MAKECaterpillar
ENGINE TYPE3406
YEAR
PART NUMBER4W7017RM
APPLICATION NOTES3406, 3406B, 3406C
ADDITIONAL NOTES3406, 3406B, 3406C
WARRANTY
One Million Miles or One Year

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Fuel Injector, Tamerx part number 4W7017RM ( 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.

Additional Notes: 3406, 3406B, 3406C

OEM NUMBERS

Primary OEM4W7018
Additional OEM0R3421, 4W7017, 4W7018

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490513105
WEIGHT2.00 LBS

SHIPPING OPTIONS

Ship Weight : 2.00 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.


Ensure precise fuel delivery with the Caterpillar 3406 Fuel Injector (OEM 4W7018). This genuine OEM injector is engineered to provide accurate fuel atomization, helping maintain smooth combustion and stable engine operation in 3406 series engines. Built to Caterpillar’s original specifications, it offers a precise fit and dependable performance under demanding conditions. The injector’s durable, corrosion- and wear-resistant construction ensures long service life and consistent reliability. Count on Tamerx Diesel Products LLC for authentic Caterpillar replacement parts that support efficient fuel system function and lasting engine dependability.

PEOPLE ALSO ASKS | BLOG(S)

The Caterpillar 3406 Fuel Injector, OEM 4W7018, is a crucial component in maintaining the efficiency and reliability of your engine’s fuel system. Proper fuel injection ensures that your engine runs smoothly and at optimal performance. Over time, injectors can wear down, leading to issues such as poor fuel economy and increased emissions. Replacing worn injectors with high-quality OEM parts like the 4W7018 helps ensure long-term engine health and efficiency.

Key Features of the Caterpillar 3406 Fuel Injector OEM 4W7018

  • Precise Fuel Injection
    • The injector provides accurate fuel delivery to the combustion chamber, ensuring efficient combustion and smooth engine operation.
  • OEM Quality
    •  As an original equipment manufacturer (OEM) part, the 4W7018 injector meets Caterpillar’s stringent standards for durability and performance.
  • Improved Fuel Efficiency
    • Properly functioning injectors optimize fuel delivery, improving fuel economy and reducing operating costs.
  • Prevents Engine Issues
    •  Replacing faulty injectors can prevent problems such as misfires, rough idling, and poor engine performance.
  • Long-Lasting Durability
    • Built to withstand heavy-duty use, this injector offers reliable performance and is designed for longevity in tough operating conditions.

Why Choose the OEM 4W7018 Fuel Injector for Your Caterpillar 3406 Engine?

The OEM 4W7018 fuel injector is designed to keep your Caterpillar 3406 engine operating efficiently by ensuring precise fuel delivery. Regular maintenance and timely replacement of injectors can prevent engine issues, improve fuel efficiency, and ensure smoother operation. Choosing an OEM injector guarantees a perfect fit and long-lasting reliability.

For those maintaining a Caterpillar 3406 engine, investing in the OEM 4W7018 fuel injector is an important step toward maintaining peak engine performance, reducing fuel costs, and extending the lifespan of your engine.

Fuel injectors are designed to deliver precise amounts of fuel into the engine, but over time, they can wear out or become damaged. The most common cause of fuel injector failure is contamination from dirt, debris, water, or poor-quality fuel entering the fuel system.

Because fuel injectors operate with extremely small passages and tight tolerances, even minor contamination can affect their ability to deliver fuel properly.

Here are the most common causes of fuel injector failure:

  • Contaminated fuel
    • Dirt, rust, water, or debris in the fuel can clog injector nozzles and disrupt fuel flow, leading to poor spray patterns and reduced efficiency.
  • Carbon and deposit buildup
    • Over time, fuel residue can accumulate on the injector tip, restricting fuel delivery and affecting combustion.
  • Poor fuel quality
    • Low-quality fuel may contain impurities that accelerate injector wear and increase the risk of clogging.
  • Fuel filter neglect
    • A clogged or worn fuel filter may allow contaminants to reach the injectors, causing premature damage.
  • Electrical problems
    • Faulty wiring, damaged connectors, or failed injector solenoids can prevent the injector from opening and closing correctly.
  • Normal wear and tear
    • Like any mechanical component, injectors can wear out after years of operation and repeated fuel delivery cycles.
  • Overheating and excessive engine stress
    • High operating temperatures can damage internal injector components and reduce their lifespan.

Regular fuel system maintenance, quality fuel, and timely filter replacements can help prevent injector failure and keep your engine running smoothly. Catching fuel system issues early can also help avoid more costly repairs down the road.

Yes — fuel leaking into the cylinder or into the crankcase can cause dilution of oil, overheating or damage to piston and liner surfaces over time.

Poor fuel quality, contaminants or inadequate filtration can clog the injector nozzle, degrade its seal or alter spray characteristics, reducing its lifespan.

After replacement, the engine should run smoother with consistent cylinder pressure, improved response under load, and more even exhaust smoke distribution across cylinders.

They should ensure the injector bore is clean, check for any oil or coolant leakage, verify correct torque of hold-down bolts, and if required, confirm injector tip protrusion or specification.

Caterpillar Fuel Injectors

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