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SENNEBOGEN Cummins ISL DEF Head Unit

SENNEBOGEN CUMMINS ISL DEF HEAD UNIT

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$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 NUMBER185152
PART TYPEDEF Head Unit
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEISL
YEAR
PART NUMBER4310-18-37
APPLICATION NOTESSENNEBOGEN
ADDITIONAL NOTESDEF Header, 40 MICRON, 18"

PRODUCT DESCRIPTION

This is a Remanufactured, Tamerx DEF Head Unit, Tamerx part number 4310-18-37 ( OEM Part Number 185152 ). This part is primarily made for a Cummins ISL, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: DEF Header, 40 MICRON, 18"

OEM NUMBERS

Primary OEM185152
Additional OEM185152

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490541498
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.


Meet the Sennebogen Cummins ISL DEF Head Unit (OEM 185152 / Tamerx 4310-18-37) — engineered for precision in motion. This rugged, remanufactured unit features an 18″ 40-micron DEF header and delivers real-time readings on DEF level, temperature, and quality. With seamless integration into Cummins ISL systems and a design built to tolerate harsh environments, it helps eliminate derates and ensures your machine stays compliant and powerful mile after mile.

PEOPLE ALSO ASKS | BLOG(S)

Your heavy equipment’s emissions system depends on every sensor doing its job—and the DEF (Diesel Exhaust Fluid) head unit is one of the most critical pieces. For Sennebogen machines with Cummins ISL engines, the DEF Head Unit (OEM 185152, Tamerx part 4310-18-37) ensures your aftertreatment system gets the correct readings and dosing demands. When this component fails or drifts, you're looking at warning lights, derates, or non-compliance issues right when you need full performance.

  • Measures DEF fluid level, temperature, and urea concentration and sends reliable data to the engine control module

  • Controls precise DEF dosing into the exhaust stream to allow the SCR (Selective Catalytic Reduction) system to reduce NOx emissions

  • Built to OEM 185152 tolerances, delivering drop-in compatibility with Sennebogen / Cummins ISL systems

  • Helps prevent fault codes, emissions warnings, and engine derates triggered by errant or drifting sensor data

  • Includes a 40-micron filter, helping protect downstream injectors and valves from contamination

  • Engineered to tolerate vibration, thermal cycling, and exposure to the harsh chemistry of DEF

Don’t let a defective DEF head unit be the weak point in your emissions system. Installing the correct OEM 185152 DEF Head Unit for your Sennebogen Cummins ISL restores sensor accuracy, stabilizes SCR function, and reduces the risk of surprise faults or downtime. When your emissions depend on it, this is one component you can’t afford to compromise.

The DEF (Diesel Exhaust Fluid) head unit monitors fluid level, quality, and temperature to ensure the emissions system operates correctly. When it malfunctions, the system may no longer send accurate data to the engine control module (ECM). This can trigger warnings, fault codes, and in many cases, reduced engine performance.

How a Faulty DEF Head Unit Can Lead to Power Reduction

  • False DEF Level Readings
    If the unit incorrectly reports low or empty DEF, the ECM may limit power to enforce compliance.

  • DEF Quality Errors
    Faulty quality sensors can cause poor-quality alerts, which may lead to reduced engine torque or speed restrictions.

  • Temperature Sensor Issues
    Inaccurate DEF temperature data can confuse the ECM and trigger derate conditions.

  • Recurring Diagnostic Trouble Codes (DTCs)
    Persistent codes such as P203F, P205B, or P207F may force the vehicle into reduced power mode until the issue is fixed.

  • Regulatory Compliance Requirements
    Emissions systems are designed to prevent non-compliant operation. If the ECM can’t verify DEF data, it may reduce power or eventually trigger shutdown.

Yes—a faulty DEF head unit can reduce engine power. What starts as a warning light can quickly escalate to derate mode, limiting speed and performance. Addressing DEF head unit problems promptly helps keep your vehicle reliable, compliant, and free from costly downtime.

Use a diagnostic tool to check live level and temperature readings and ensure no fault codes are present.

Use high-purity, compliant DEF, avoid contamination, periodically clean or replace the strainer, and verify heater/sensor function.

 

The engine may go into derate mode, issue DEF system warnings, or lose emissions compliance until repair.

Causes include contaminated DEF, freezing or extreme temperature conditions, sensor failures, or wiring issues.

Cummins DEF Head Units

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