Welcome to United Parts Service, or Unipaser.  We have changed somewhat. 
You must Login to access our Catalog and Online Store.

Established Customers
You are now required to Login to access our products and purchase items online.
Login allows browsing our Catalog Nr. 4, our Specials and our Literature. 

New Customers
Please fill out and submit the New Account Request.
Once your request is approved you can login and access all our site's features.

For all other inquiries please use our Contact Form.

With over 40 years of exposure and involvement with Unimogs, we hope you will find something of interest here. Our motto has been and will eternally remain “dedicated to the Unimog S404”. We have in this time period established a solid relationship with Mercedes Benz in Germany and can provide you with items for all models of the Unimog family of vehicles. As our established customers will agree, many of the items no longer offered by DB can be sourced within our inventory. Our Catalog Nr. 4 provides what we have for this model. Therein you will find not only what is currently available, but also reference material for those seeking historical reference or the one-off odd part thought to be non-existent. Once you have established an account (pending approval) you will have free access to over 4,000 parts listed therein as well as our specials section.

We continually get inquiries for other Unimog models and have been providing parts to municipalities, transit organizations, governmental agencies and businesses for decades. We’re glad to help, however, since the beginning of production in 1950 under the Mercedes name, no less than 35 distinct families of the Unimog have emerged; from the 2010 to the U500. It is for this reason that in order to be able to correctly identify the parts you need, we will require your complete, correct chassis, or VIN number at hand. Even then, as many of these vehicles have been in circulation for decades, in many instances component assemblies, superseded parts (and their respective numbering) and non-standard items replacing OEM parts may be evident, thus presenting more of a challenge in parts identification.

If you currently have an account with us, your access to all the site features will be accessible once you log in. If you would like to delve further into the Unipaser experience, please fill out and submit a New Account Request. Once your request for a new account has been approved, you will have access to full site content.