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Caterpillar C7, C9 DPF : OEM 291-8514

CATERPILLAR C7, C9 DPF : OEM 291-8514

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,160.00

AVAILABILITY IN STOCK
OEM NUMBER291-8514
PART TYPEDPF
BRAND
ENGINE MAKECaterpillar
ENGINE TYPEC7, C9
YEAR
PART NUMBER101-0049

PRODUCT DESCRIPTION

This is a New, DPF, part number 101-0049 ( OEM Part Number 291-8514 ). This part is primarily made for a Caterpillar C7, C9, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM291-8514
Additional OEM291-8514, 2918514

ADDITIONAL DETAILS

CONDITIONNew
UPC / Barcode00840490538429
WEIGHT44.00 LBS

SHIPPING OPTIONS

Ship Weight : 44.00 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 C7 and C9 engine applications, the OEM 291-8514 Diesel Particulate Filter is manufactured to meet original equipment specifications for proper fit and dependable service. This DPF is designed to capture and store soot from exhaust gases, supporting regulated emissions output and efficient aftertreatment system function. Constructed with durable substrate materials, it is engineered to withstand high exhaust temperatures and demanding operating conditions. Proper diesel particulate filter operation is essential for maintaining emissions compliance and preventing system-related warning codes. Tamerx Diesel Products LLC supplies this Caterpillar C7 and C9 DPF as a reliable solution for consistent exhaust aftertreatment performance.

PEOPLE ALSO ASKS | BLOG(S)

Effective emissions control is essential for modern diesel engines, and the Caterpillar C7, C9 DPF OEM 291-8514 plays a vital role in meeting those standards. Designed specifically for Cat C7 and C9 engines, this Diesel Particulate Filter (DPF) is responsible for capturing soot and particulate matter produced during combustion.

Without a properly functioning DPF, harmful particulate emissions would exit through the exhaust system. The OEM 291-8514 unit helps ensure that equipment operates within regulated emissions limits while maintaining dependable engine operation.

The Caterpillar C7, C9 DPF is important because it:

  • Traps soot and particulate matter from exhaust gases
  • Reduces visible exhaust smoke
  • Supports compliance with emissions regulations
  • Works with sensors and control modules for regeneration
  • Protects surrounding components from excessive soot buildup

Inside the DPF is a ceramic honeycomb substrate that captures soot as exhaust flows through it. Over time, the filter fills with particulate matter and must undergo regeneration. During regeneration, elevated exhaust temperatures convert accumulated soot into ash, restoring the filter’s capacity.

If the DPF becomes clogged or fails, it can lead to warning lights, reduced engine output, and increased fuel consumption. Maintaining a properly functioning OEM 291-8514 DPF helps ensure consistent exhaust flow and long-term reliability.

For operators of Caterpillar C7 and C9 engines, this DPF is a critical component for emissions control, operational stability, and regulatory compliance.

A failing Diesel Particulate Filter (DPF) can quickly lead to warning lights, reduced engine operation, and costly repairs if ignored. Because the DPF is responsible for trapping soot, restriction builds when regeneration does not occur properly.

The first step is recognizing the warning signs.

Common symptoms of DPF failure include:

  • DPF warning light illuminated
  • Reduced engine acceleration
  • Increased fuel consumption
  • Frequent or failed regeneration cycles
  • Excessive exhaust smoke
  • Strong exhaust odor

If you see a warning light, avoid ignoring it. In some cases, driving at highway speeds for a sustained period may allow the system to complete a passive regeneration cycle. However, this only works if the filter is not severely restricted.

Next, have the vehicle professionally diagnosed. A technician can check soot load levels, sensor readings, and fault codes to determine the severity of the restriction.

Depending on the condition of the filter, options may include:

  • Performing a forced regeneration
  • Removing the DPF for professional cleaning
  • Replacing the filter if it is beyond recovery

It is also important to address the root cause. Faulty sensors, EGR issues, excessive idling, or engine problems can contribute to repeated DPF failures.

Acting quickly can help prevent further exhaust system damage and costly downtime.

Indications such as increased backpressure or emissions-related alerts can signal DPF service is needed.

Yes, the 291-8514 DPF is designed to match original exhaust flanges and sensor interfaces.

The OEM 291-8514 DPF is engineered to meet the emissions control requirements of Caterpillar C7 and C9 engines.

A properly functioning 291-8514 DPF helps reduce particulate output to align with emissions expectations.

Caterpillar DPFs