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Cummins Header : OEM ASPFL-2337

CUMMINS HEADER : OEM ASPFL-2337

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,300.00

AVAILABILITY IN STOCK
OEM NUMBERASPFL-2337
PART TYPEHeader
BRANDDuraWRX
ENGINE MAKECummins
ENGINE TYPE
YEAR
PART NUMBERASPFL-2337
APPLICATION NOTESElectrical Connector: Amp 282106-1 (4-Pin) Sensor Type: Analog DEF Header Height (IN): 20
ADDITIONAL NOTESHeader, Freightliner, CCV, SAE, Cummins

PRODUCT DESCRIPTION

This is a New, DuraWRX Header, DuraWRX part number ASPFL-2337 ( OEM Part Number ASPFL-2337 ). This part is primarily made for a Cummins , and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: Header, Freightliner, CCV, SAE, Cummins

OEM NUMBERS

Primary OEMASPFL-2337
Additional OEM04-30798-001, 04-31677-001, ASPFL-2337

ADDITIONAL DETAILS

CONDITIONNew
UPC / Barcode
WEIGHT0.00 LBS

SHIPPING OPTIONS

Ship Weight : 0.00 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.

"This Product Doesn't Have a Core"


The OEM ASPFL-2337 Header is built to match Cummins engine configurations, offering a direct-fit solution for proper exhaust routing and system integration. Manufactured to original specifications, this component installs securely without the need for adjustments or modifications. It plays a key role in supporting consistent exhaust flow and system function under regular operating conditions. Suitable for replacement during maintenance or repair, the header is designed to align with factory requirements. OEM quality ensures reliable compatibility and lasting service in demanding environments.

PEOPLE ALSO ASKS | BLOG(S)

The OEM ASPFL-2337 header is a specialized component designed for use in Cummins diesel systems, where reliable fluid or exhaust routing is critical. Whether used in a coolant, exhaust, or DEF-related assembly, this header plays a key role in maintaining sealed and efficient connections within the engine’s system.

Manufactured to meet Cummins’ strict standards, the ASPFL-2337 ensures compatibility and long-term dependability across a variety of heavy-duty and industrial applications.

Key features of the OEM ASPFL-2337 Cummins header include:

  • Precision-Machined Flanges
    • Provide a tight seal with no modification required
  • Durable Alloy Construction
    • Withstands thermal and mechanical stress
  • OEM Fitment
    • Designed specifically for Cummins platforms using ASPFL-series components
  • Corrosion-Resistant Finish
    • Helps prevent wear in harsh environments
  • Mounting Compatibility
    • Matches existing brackets and tank configurations

Always verify the OEM part number (ASPFL-2337) with your system specifications to ensure proper fit and function.

This header is ideal for use in Cummins-powered equipment operating in construction, transport, or stationary applications that require consistent fluid or gas flow management.

When the DEF (Diesel Exhaust Fluid) header—also called the DEF head unit—fails, it disrupts the vehicle’s emissions control system. This can trigger a chain of warnings and system responses designed to protect the engine and ensure environmental compliance.

Here’s What Typically Happens:

  • False DEF Level Readings
    • The gauge may show empty or full inaccurately, even if the tank has the correct amount of fluid.
  • Warning Messages Appear
    • You may see alerts such as:
      • “Service DEF System”
      • “Incorrect DEF Quality”
      • “Miles Until Speed Limit” or countdown to reduced operation
  • Check Engine Light Turns On
    • The ECM logs fault codes related to DEF level, quality, or communication errors.
  • Truck May Derate
    • If the system can’t verify DEF status, the truck will gradually reduce speed to comply with emissions laws—sometimes to as low as 5 mph.
  • System Lockout (No-Start Condition)
    • In some cases, continued driving with an unresolved issue may lead to a no-start mode after multiple key cycles.

Acting quickly can help prevent a derate or shutdown.

No calibration is typically needed, but sensor data should be verified with diagnostics after installation.

Yes, issues such as exhaust leaks or incorrect sensor positioning can lead to diagnostic trouble codes and warning lights.

Signs include exhaust leakage, DEF crystallization around the dosing port, sensor fault codes, or reduced SCR efficiency.

No, it’s not recommended; OEM headers are precision-engineered for emissions compliance and should be replaced if damaged.

Cummins Headers

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