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SANY Cummins ISB 6.7L DEF Head Unit

SANY CUMMINS ISB 6.7L 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 NUMBER502373
PART TYPEDEF Head Unit
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEISB 6.7L
YEAR
PART NUMBER4310-18-35
APPLICATION NOTESSANY
ADDITIONAL NOTESDEF Header, 40 MICRON, 18"

PRODUCT DESCRIPTION

This is a Remanufactured, Tamerx DEF Head Unit, Tamerx part number 4310-18-35 ( OEM Part Number 502373 ). This part is primarily made for a Cummins ISB 6.7L, 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 OEM502373
Additional OEM502373

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490541474
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.


Boost your emissions control with the SANY Cummins ISB 6.7L DEF Head Unit (OEM 502392 / Tamerx 4310-22-9) — precision-engineered for seamless performance in rugged machinery. This durable module delivers real-time monitoring of DEF level, temperature, and quality, integrating tightly with your SCR system to prevent derates and maintain compliance. Built tough for harsh conditions and backed by Tamerx’s trusted warranty, it’s the reliable upgrade your equipment deserves.

PEOPLE ALSO ASKS | BLOG(S)

When your heavy machinery or equipment uses a SANY chassis with a Cummins ISB 6.7L engine, keeping your emissions system functioning reliably is essential. The SANY Cummins ISB 6.7L DEF Head Unit (OEM 502392) is a crucial link in that chain: it senses, regulates, and reports the status of your DEF (Diesel Exhaust Fluid) circuit. Failures here can cause warning lights, emissions faults, or engine derates—any of which can disrupt work when you least expect it.

  • Continuously monitors DEF fluid level, temperature, and urea concentration, providing real-time feedback to the ECM

  • Regulates precise dosing of DEF into the exhaust stream to support the SCR (Selective Catalytic Reduction) system’s ability to reduce NOx emissions

  • Built to meet OEM 502392 standards, ensuring plug-and-play compatibility with SANY / Cummins ISB systems

  • Helps prevent fault codes, emissions warnings, and engine derates caused by sensor drift or incorrect readings

  • Constructed to endure harsh environments—vibration, thermal cycling, and exposure to DEF’s corrosive nature

  • Designed for straightforward replacement in the field to minimize downtime

Ignoring a failing DEF head module can lead to cascading issues in your emissions system. Installing the OEM 502392 SANY Cummins ISB 6.7L DEF Head Unit helps restore system integrity, ensures your SCR system works as intended, and reduces the risk of sudden faults or derates. In heavy-duty operation, this small component can make a big difference in keeping your machinery reliable and compliant.

The DEF (Diesel Exhaust Fluid) head unit is often thought of as just a sensor that tracks how much DEF is in the tank. While monitoring fluid level is one of its main jobs, the unit is actually much more advanced. It also measures other critical factors that help ensure the emissions system operates efficiently and stays compliant with regulations.

Functions of the DEF Head Unit Beyond Fluid Level

  • DEF Quality
    The unit measures the concentration of urea in the fluid to ensure the DEF meets ISO standards. Poor quality readings can trigger alerts or fault codes.

  • Fluid Temperature
    Monitoring DEF temperature helps the system function correctly in hot and cold weather, preventing freezing or overheating issues.

  • Tank Heater Activation (in many units)
    Some DEF head units control heating elements to keep DEF from freezing in cold climates.

  • Communication with the ECM
    The head unit relays sensor data to the engine control module (ECM), allowing the system to make adjustments and stay emissions-compliant.

The DEF head unit does much more than measure fluid level—it also monitors quality, temperature, and even assists in maintaining proper DEF conditions. By tracking these critical factors, the head unit ensures the emissions system runs smoothly and keeps vehicles in compliance with environmental standards.

Flush the DEF pickup with clean, compliant fluid and carefully back-flush or replace the strainer.

Clogging of the strainer, erratic sensor readings, or triggered fault codes are common symptoms.

If its heating system fails, DEF may freeze or become too viscous to flow properly.

Excess vibration or mechanical shock can damage sensors, loosen connectors, or cause internal leaks.

 

 

Cummins DEF Head Units

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