I've answered this question so many times I can just about do it from
memory:

Vanagon Manual Transmission, 1981 Air Cooled

Bosch SR87X (091 911 023)
To Vin 25-B-093610

Bosch SR19X (091 911 023 A)
Vin 25-B-093610 to 25-B-152582

Bosch SR401X (025 911 023 A)
Vin 25-B-152583 onwards

The SR19X and SR401X are interchangeable as per Bosch & VW Factory Parts
Bulletins (the 401 replaced the 19)

Based on your Vin, yours is an EARLY 81 Vanagon for starter purposes.  A
replacement engine does not factor into this.

I think I'm gonna whip up a PDF for Air Cooled Vanagon Applications and
upload to my website, hopefully to reduce the confusion (part of my on-going
Bosch data cross-referencing project).

Biggest differences are the "throw" of the starter gear and solenoid
differences.  The solenoid on the SR401X is not replaceable separately -
starter with solenoid must be purchased.
--
Jim Thompson
84 Westfalia 2.1 "Ole Putt"
73 K Ghia Coupe "Denise"
72 411 Station Wagon "Pug"
oldvolkshome@gmail.com
http://www.oldvolkshome.com
**********************************
On 7/13/06, chris <vanagon@frontleftspeakerposse.com> wrote:

> I was shopping for a new starter, and it looks like my model year
> changed somewhere along the line, so im not sure which I have.
>
>
> Some list starters for chassis      "093 611-"
> and with the later 81 (im guessing) "-093 610"
>
> Bus Depot lists a starter for the model : " From 1/81, Ch# 24B093612"
>
>
> Does having a rebuilt motor factor into this at all?
>
> How are the early and late 81 starters actually different?
>
> My chassis number, I think, is 25B045694
>
> does this make mine a 'late 81' - meaning I would use that starter that
> busdepot has listed above?
>
>
> thanks for any tips, suggestions, or misc tomfoolery.
>
> chris
>