Truck Equipment Manufacturer/Body Builder Registration

Daimler Truck North America provides Truck Equipment Manufacturers (TEMs) with access to a variety of applications and resources that assist with truck spec and product support. To access these resources, you must register using the TEM Registration Form.  All submitted applications are manually reviewed, please allow time for processing.  


Note: NTEA registered users will receive expedited approval (visit the NTEA website for information and details on membership). 


NTEA membership is preferred although not required.


TEM NEW USER REQUEST: If your organization has an existing TEM account and you would like a new user ID to access DTNA Portal, please complete the TEM - New User Request Form.


If your organization has an existing TEM account and you would like a new user ID to access DTNA Portal, please complete the following form:


TEM - New User Request Form


Registered TEMs have access to these secure applications:


PartsProX powered by Excelerator℠

Our new digital catalog is built on speed and efficiency and allows you access your vehicle’s originally installed parts using an interactive Bill of Materials (BOM). You also have access to parts cross-reference, alternates, supersedures, rich part imagery and so much more!



This is an essential asset for service techs that offers easy access to wiring diagrams.



Technical information and documentation including driver's, maintenance and workshop manuals.



View and set configuration parameters, get easily understood fault code information, use the built-in diagnostic tools and tests designed specifically for today’s complex vehicles.


Custom Hardware and Electronic Configurator (CHEC) Tool

CHEC Tool includes the ability to search, design, test, and troubleshoot flexible software features (or parameters) on Freightliner trucks’ electronic controllers without relying on Daimler Trucks Engineering. CHEC tool also allows switch and Gauge customization, circuit to Pin mapping, and comparing truck parameters on Freightliner Trucks. CHEC is accessible by completing the appropriate web-based training on the Aftermarket Resources Center (ARC).


Technical Resource Guide

View detailed product components, measurements, system schematics and mounting information essential for making your design decisions.