Alternator, individual parts


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PLEASE NOTE: The AE column indicates availability. If 'A' appears in the column, it means the part is interchangeable with the part on the following line. If 'E' appears, it means the part is No Longer Available! If both letters 'AE' are shown , both conditions apply. If what you need isn't available from BMW, don’t despair! Alternatives may exist – CONTACT us!

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Nr Part Number Description Price Per Unit Qty
01 12 31 8002347 Rotor $340.04 Add to Cart
02 12 31 1243001 Field coil $197.31 Add to Cart
only in conjunction with
-- 12 31 1244063 Diode assy $174.55 Add to Cart
-- 12 31 1243002 Housing $326.58 More Info
03 12 31 1350769 Roll pin $2.60 Add to Cart
04 12 31 1243002 Housing $326.58 More Info
05 12 31 8002349 Connector $15.28 More Info
06 07 11 9904115 Wave washer $0.07 Add to Cart
07 12 31 8002348 Fillister-head screw $16.09 Add to Cart
08 12 31 1243003 Brush holder plate $69.84 Add to Cart
09 12 31 1350786 Compression spring $6.02 Add to Cart
10 12 31 1244480 Carbon brush set $5.34 More Info
10 12 31 1244389 Carbon brush set $16.76 Add to Cart
11 12 31 8002351 Cable terminal $7.23 Add to Cart
12 12 31 2322417 Fillister-head screw $2.44 Add to Cart
13 07 11 9932098 Wave washer $1.17 Add to Cart
14 12 31 1357497 Generator More Info
only in conjunction with
EnDuraLast II 400 Watt Alternator Upgrade Kit for Airheads 1970-95
Get the ultimate charging system upgrade for your Airhead! Reliable and strong 21st century technology generates 400 Watts/28 Amps of power to run accessories - what your stock system could never do - in this complete EnDuraLast II kit for all 1970-'76 Boxers. Includes rotor, stator, diode board, voltage regulator, and everything else you need to install and ride!
$350.00 Add to Cart
-- 12 33 1357639 Wiring set $2.34 Add to Cart

Parts illustrated but NOT listed or parts noted with this symbol may be available! Click Here for full details.

If parts illustrated in a diagram are MISSING from the listing, OR… they are noted with this symbol it means one of the following:

a) BMW considers the part obsolete or no longer available.

b) The part may not fit the specific model you are searching but fits a similar model that shares the same illustration.

c) There is simply an error in the Microfiche (Yes, though this is BMW’s official Parts Microfiche, there are occasionally errors or omissions!)

In any case, if you need a part that you can’t find here, contact us! It’s likely that the part IS AVAILABLE from Bob's BMW. Most of the time these are the correct, genuine BMW parts that we regularly keep in stock. When original parts are no longer available, as can happen with older models, Bob’s has top quality replacements and reproductions in stock. And if the part you need isn’t currently in stock, we have many reliable sources in Europe, the US, and around the globe that we can tap to fill your request.

It’s what we do! Since 1981 Bob’s has been making it easy for you to get your parts – the right parts – every time.

Please contact us directly by email or phone: 301-497-8949 x 504