Thanks to Jimt for the link.
Here's the note I got back this am from Remtec
I'll have to assume that the engines are remanufactured and not new as I assumed.

From   Remtec Europe - Nigel Howe <engines@remteceurope.com>
Sent  Wednesday, May 18, 2005 6:32 am
To  terrapincampers@optonline.net
Cc
Bcc
Subject  Re: Engine ID
Print E-mail
The tag tells you what engine it is - it is a 2100cc DJ engine.
025-100-031D is the VW part number

Regards

Nigel

Nigel Howe
TEL +44 (0) 1273 493670
FAX +44 (0) 1273 495850
engines@remteceurope.com
www.remteceurope.com

----- Original Message -----
From: <terrapincampers@optonline.net>
To: <engines@remteceurope.com>
Sent: Tuesday, May 17, 2005 4:09 AM
Subject: Engine ID

>
> The number is DJS 025 100 031D  and another tag says DJ 2100
>
> Thank you for your time.
>
> Jim King
> Garrison, NY
> USA

----- Original Message -----
From: jimt <camper@TACTICAL-BUS.INFO>
Date: Monday, May 16, 2005 7:26 pm
Subject: Re: Help decipher S.African Vanagon engine code

> Engine code DJ appears to be the standard 2.1 wasserboxer engine.
> With the
> SA markings on it it is possible it was a rebuild by remtec.  They
> took over
> the old VW engine plant in SA.
>
> http://www.remteceurope.com
>
> Jimt
>
> On 5/16/05 9:28 AM, "Jim King" <terrapincampers@OPTONLINE.NET> wrote:
>
> > I need to decipher a VW engine code from Vanagon Wasserboxer
> crate engine that
> > I've come across.
> >
> > Can anyone point me to a good information source, or perhaps
> decipher the
> > number for me?
> >
> > Here is the number: DJS 025 100 031D
> >
> > A tag on the engine also reads 2100DJ, and that is was
> manufactured in
> > S.Africa
> >
> > Thanks, Jim King
> > 86 Syncro Westy
> >
> >
>