Skip to content
To take full advantage of this site, please enable your browser's JavaScript feature.
Learn how
Contact
My Account
Help
CHECKOUT
EuroMotoElectrics.com
Translate
Search site:
SEARCH
Contact
My Account
Help
Shop Our Categories
Airhead
Brakes
Electrical System
Engine & Drivetrain
Filters & Fluids
Frame
Fuel System
Steering
Wheels
Compounds, Tools & Fasteners
Custom
Oilhead
Brakes
Electrical System
Engine & Drivetrain
Fluids & Filters
Frame
Fuel System
Steering
Wheels
Compounds, Tools & Fasteners
Hexhead
Brakes
Cooling
Electrical System
Engine & Drivetrain
Fluids & Filters
Frame
Fuel System
Steering
Wheels
Compounds, Tools & Fasteners
K Bike
Brakes
Cooling
Electrical System
Engine & Drivetrain
Fluids & Filters
Frame
Fuel System
Steering
Wheels
Compounds, Tools & Fasteners
Custom
F & G Bike
Brakes
Cooling
Electrical System
Engine & Drivetrain
Fluids & Filters
Frame
Fuel System
Steering
Wheels
Compounds, Tools & Fasteners
S Bike & HP4
Brakes
Cooling
Electrical System
Engine & Drivetrain
Fluids & Filters
Frame
Fuel System
Steering
Wheels
Compounds, Tools & Fasteners
Scooter
Brakes
Cooling
Electrical System
Engine & Drivetrain
Fluids & Filters
Frame
Fuel System
Steering
Wheels
Compounds, Tools & Fasteners
Ducati & Moto Guzzi
Batteries
Brakes
Charging
Fluids & Filters
Fuel System
Gaskets & Seals
Ignition
Lighting & Horns
Starting
Switches & Sensors
Wiring
Home
>
Airhead
>
Electrical System
>
Charging
>
Rotors & Stators
>
Alternator Rotor - BMW Airhead & Moto Guzzi; 12 31 1 244 642 / EnDuraLast
Alternative Views:
Part #: BOALT-Rotor642OE
EnDuraLast BOSCH Alternator Rotor (73mmŲ) for BOSCH Charging System.
European Manufactured Premium Quality Aftermarket Rotor Replaces BOSCH Original Equipment Rotor on ALL BMW Airheads and Moto Guzzi model with BOSCH 3-phase Charging System 1969-1995.
Vehicle Manufacturer:
BMW, Moto Guzzi
Application:
BMW Airhead, Moto Guzzi with BOSCH Charging System
Make/Model:
BMW R60, R65, R75, R80, R90, R100 1969-1995 Moto Guzzi 1974-1994
Model Years:
1969 - 1995
Manufacturer #:
BMW 12 31 1 244
642
(240 watt / 17A ) , 12 31 8 002
347
( 180 watt / 13 A )
Bosch Part # : 0 124 033 027
Moto Guzzi Part # : 17712457
Power Rating:
270 Watts / 20 Amp; Quality replacement with BOSCH Alternator Charging System
Need help removing your original rotor? Use our rotor removal tool!
BOALT-Rotor642Tool
(See APPLICATION TABLE tab
BELOW
to verify vehicle fitment)
Brand :
Manufactured in ITALY
BMW List Price $417.84
USD Price
$
125.00
Quantity in Stock:299
Part #:
BOALT-ROTOR642OE
BMW Rotor Oil Seal [Add $8.25]
Quantity:
Description
Application Table
Premium Quality Rotor for use with BOSCH Alternator Charging System 270 Watts / 20 Amp;
Designed to replace the original Bosch Rotor with modern EnDuraLast technology.
OEM Iron Claw Poles, ETP Copper Wire, Nylon bobbin, double resin coating for insulation protection.
Computer balanced for reduced high engine RPM vibration reduction.
Diameter is 0.5mm larger than original for smaller air gap between stator increased current production.
Special resin soaking of coil increases life expectancy at high operating temperatures and engine RPM speed
Manufactured in Italy by a BOSCH approved supplier / subcontractor.
Brand New - no core charge , no exchange of your old rotor required.
Description
Alternator Rotor NEW
Voltage
12 V
Amperage
20 A
Shaft Length
83 mm
Claw Diameter
73.5 mm
No of Claws / Splines
6
Drive End Diameter
28 mm
Slip Ring End Diameter
15 mm
OHMs
2.9
Removing Old Rotor (Courtesy Brook Reams)
EME Part Number:
BOALT-Rotor642OE
BMW Part Number:
12 31 1 244
642
12 31 8 002
347
Model
Year
Power Rating:
R45 (248)
01/78-07/85 ECE
R45/N (248)
03/78-07/85 ECE
R45T (248)
10/80-06/85 ECE
R45T/N (248)
09/80-07/85 ECE
R50US (T50)
08/67-08/69 USA
180 watt / 13 amp
R50/2 (T50)
01/61-08/69 ECE
180 watt / 13 amp
R50/5 (2476)
08/69-07/73 ECE
180 watt / 13 amp
R60/2 (T60)
01/60-12/69 ECE
180 watt / 13 amp
R60US (T60)
01/67-12/69 USA
180 watt / 13 amp
R60 TIC (2477)
09/78-11/82 ECE
R60/5 (2476)
08/69-07/73 ECE
R60/6 (2476)
07/73-06/76 ECE
R60/6 (2476)
01/74-05/76 USA
R60/7 (2477)
05/76-04/80 ECE
R60/7 (2477)
07/76-11/77 USA
R65 (2472)
07/85-05/87 USA
R65 (248)
01/78-07/85 ECE
R65 (248)
07/78-04/85 USA
R65 20KW (2472)
04/85-06/93 ECE
R65 35KW (2472)
06/85-10/88 ECE
R65GS (2471)
11/87-11/92 ECE
R65LS (248)
03/81-03/85 ECE
R65LS (248)
06/81-02/85 USA
R65RT SF (2472)
07/85-11/88 ECE
R65T (248)
09/80-07/85 ECE
R69S (T69)
01/60-12/69 ECE
180 watt / 13 amp
R69US (T69)
01/67-12/69 USA
180 watt / 13 amp
R75/5 (2476)
08/69-07/80 ECE
180 watt / 13 amp
R75/6 (2476)
09/73-06/76 ECE
R75/6 (2476)
01/74-06/76 USA
R75/7 (2477)
05/76-01/79 ECE
R75/7 (2477)
07/76-06/77 USA
R80 (2472)
07/84-07/87 USA
R80 (2472)
03/84-01/95 ECE
R80 (2477)
04/77-11/84 ECE
R80 (2477)
04/77-07/80 USA
R80GS (2471)
05/80-07/87 ECE
R80GS (2471)
06/80-03/87 USA
R80GS (47E1)
01/87-07/90 ECE
R80GS (47E2)
04/90-10/95 ECE
R80GS (47E3)
01/96-12/96 ECE
R80GS PD (47E1)
06/90-07/90 ECE
R80GS PD (47E2)
08/90-06/95 ECE
R80R (2473)
03/91-06/94 ECE
R80R Mystik (2473)
03/94-03/95 ECE
R80RT (2472)
07/84-12/95 ECE
R80RT (2472)
07/84-04/87 USA
R80RT (2477)
06/82-11/84 ECE
R80RT (2477)
08/82-10/84 USA
R80ST (2471)
04/82-10/84 ECE
R80ST (2471)
10/82-10/84 USA
R80TIC (2477)
06/78-01/85 ECE
R90/6 (2476)
09/73-06/76 ECE
R90/6 (2476)
01/74-06/76 USA
R90S (2476)
09/73-06/76 ECE
R90S (2476)
01/74-06/76 USA
R100/7 (2474)
05/76-06/77 ECE
R100/7T (2474)
04/77-10/84 ECE
R100/7T (2474)
05/76-07/78 USA
R100/T (2474)
09/78-09/84 USA
R100CS (2474)
06/80-10/84 ECE
R100CS (2474)
09/80-09/84 USA
R100GS (47E1)
01/87-03/90 USA
R100GS (47E1)
12/86-07/90 ECE
R100GS (47E2)
11/90-09/94 USA
R100GS PD (47E1)
02/89-07/90 ECE
R100GS PD (47E1)
06/89-04/90 USA
R100GS PD (47E2)
09/90-12/95 USA
R100GS PD (47E2)
08/90-02/96 ECE
R100R (2473)
03/91-12/95 ECE
R100R (2473)
09/91-12/95 USA
R100R Mystik (2473)
12/93-01/96 ECE
R100R Mystik (2473)
03/94-09/95 USA
R100RS (2474)
03/76-11/84 ECE
R100RS (2474)
05/76-10/84 USA
R100RS (2478)
08/87-08/92 USA
R100RS (2478)
07/86-10/92 ECE
R100RT (2474)
06/78-10/84 ECE
R100RT (2474)
04/78-09/84 USA
R100RT (2478)
07/87-12/95 ECE
R100RT (2478)
08/87-12/95 USA
R100S (2474)
05/76-07/80 ECE
R100S (2474)
05/76-07/80 USA
R100TIC (2474)
11/80-09/84 ECE
Related Products
Alternator Stator for /5's - BMW Airhead; 12 31 1 243 001 / EnDuraLast
Alternator Stator 107mm - BMW Airhead; 12 31 1 244 641 / EnDuraLast
Crank Shaft Oil Seal - Moto Guzzi; 904 028 40 / EnDuraLast
Voltage Regulator Adjustable - BMW Airhead & Moto Guzzi; 12 32 1 244 409 / 12 32 1 350 052 / EnDuraLast
USD Price
$129.99
Add
USD Price
$129.99
Add
USD Price
$7.99
Add
USD Price
$24.99
Add
Alternator Stator 105mm for /6's & Moto Guzzi; 12 31 1 243 001 / EnDuraLast
Oil Seal, Crankshaft/Timing Cover & Wheel Seal - BMW Airhead, G Bike; 11 14 1 255 011, 11 14 1 337 654 / EnDuraLast
Alternator Rotor Removal Tool w Flange Head - BMW Airhead; 71 11 0 000 001 / EnDuraLast
Diode Board / Rectifier 60 Amp BMW Airhead & Moto Guzzi; 12 31 1 244 062, 063, 12 31 1 357 498 / EnDuraLast
USD Price
$129.99
Add
USD Price
$8.25
Add
USD Price
$8.00
Add
BUY NOW $65.00
Add