OEM BMW M340i Alternators
We pride ourselves on carrying a large inventory of the highest quality genuine OEM Alternators for all BMW M340i makes and models. We guarantee that your part will fit when you enter your VIN and all of our Alternators come with a manufacturer's 12-month warranty.
Alternator Pulley
BMW
12-31-8-629-984
5 series. Without gt models. Without 4.4l. 740i, 740ix. X4. 3.0l. 2.0, 3.0L. X4. 2.0l. M competition. M40i. Without 48 volt system.
$93.71
MSRP $112.90
Save $19.19
17% Off 
Generator Assembly
BMW
12-31-8-490-540
With 48 volt system, new.
$1,774.76
MSRP $2,087.95
Save $313.19
15% Off 
Generator Assembly
BMW
12-31-8-634-167
Without 48 volt system, new, 180 amp.
$1,318.38
MSRP $1,551.03
Save $232.65
15% Off 
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