Home > Airhead > Electrical System > Charging > Rotors & Stators >

Alternator Rotor & Brushes - BMW Airhead & Moto Guzzi; 12 31 1 244 642 / EnDuraLast
12 31 1 244 642, 12311244642, BMW, BMW AIRHEAD. BMW R60, R65, R75, R80, R90, R100, Moto Guzzi, BOSCH ALTERNATOR rotor BMW R , 12311244642,12311244062, 12311244063, 12311357498, 0197002001, 0197002001, 0197002002, 0197002003, 12 31 1 244 062, 12 31 1 244 0
 
Alternative Views:
Part #: BOALT-Rotor642

EnDuraLast BOSCH Alternator Rotor (73mmŲ) for BOSCH Charging System.

Quality Aftermarket Rotor Replaces BOSCH Original Equipment Rotor on ALL BMW Airheads and Moto Guzzi model with BOSCH 3-phase Charging System 1969-1995. Includes 2 carbon brushes, for complete refreshing of the Bosch Charging System.

Vehicle Manufacturer: BMW Airhead 2 Valve, Moto Guzzi with BOSCH Alternator
Application: BMW Airhead, Moto Guzzi with BOSCH Charging System
Make/Model: BMW Airhead 2 Valve, BMW, 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

(See APPLICATION TABLE tab BELOW to verify vehicle fitment)

Brand :
BMW List Price $417.84
USD Price $99.00

Quantity in Stock:(Out of Stock)

Part #: BOALT-ROTOR642


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
  • Brand New - no core charge , no exchange of your o
  • ld rotor required.
If you experience issues where the GEN light stays on above 1000 rpm read the following article on permanently magnetizing your alternator rotor.

Permanently Magnetizing your Bosch Alternator Rotor.

DescriptionAlternator Rotor NEW
Voltage12 V
Amperage20 A
Shaft Length83 mm
Claw Diameter73.5 mm
No of Claws / Splines6
Drive End Diameter28 mm
Slip Ring End Inner/Outer Diameter15 mm/ 32.5 mm
OHMs2.9
Removing Old Rotor (Courtesy Brook Reams)

Related Products
Alternator 107.5mm Stator Frame Assembly for BMW Airhead - 12 31 1 243 002 / EnDuraLast BOSCH Alternator Brush Kit Insulated with Eyelet - BMW Airhead & Moto Guzzi; x 2 brushes 12 31 1 244 480, 389 / 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 Bolt - M8x50 BMW Airhead; 12 31 8 002 348 / EnDuraLast
BUY NOW $99.99

Add
BUY NOW $7.00

Add
USD Price $8.25

Add
BUY NOW $5.00

Add
Airhead; Bosch stator; Bosch 3-phase stator 12 31 1 244 480, 12311244480, 12 31 1 244 389, 12311244389, 12 31 1 244 480, 12 31 1 244 389, 14712453, BMW R Airhead Alternator Brushes, BMW R Airhead, BMW Airhead alternator Brushes, Airhead Alternator Brush, 14712453, Moto Guzzi Alternator Brushes, BMW 11 14 1 255 011, 11141255011, supercedes to use 11 14 1 337 654 ,11141337654 BMW Oil seal, BMW R Oil seal, BMW K Oil seal, BMW oilhead oil seal, BMW Airhead oil seal, Bosch oil seal, Rotor oil seal, BMW AIrhead rotor oil seal, BMW Airhead alternator oil s 12 31 8 002 348, 12318002348, BMW, BMW AIRHEAD. BMW R60, R65, R75, R80, R90, R100, Moto Guzzi, BOSCH ALTERNATOR BMW R , 12311244642,12311244062, 12311244063, 12311357498, 0197002001, 0197002001, 0197002002, 0197002003, 12 31 1 244 062, 12 31 1 244 063, 12
BOSCH Alternator Brush Holder Kit - BMW Airhead & Moto Guzzi; 12 31 1 243 003, 12 31 1 244 480, 12 31 1 244 389 / EnDuraLast Alternator Rotor Removal Tool w Flange Head - BMW Airhead; 71 11 0 000 001 / EnDuraLast Voltage Regulator Adjustable - BMW Airhead & Moto Guzzi; 12 32 1 244 409 / 12 32 1 350 052 / EnDuraLast Diode Board / Rectifier 60 Amp BMW Airhead & Moto Guzzi; 12 31 1 244 062, 063, 12 31 1 357 498 / EnDuraLast
BUY NOW $34.99

Add
USD Price $8.00

Add
USD Price $24.99

Add
BUY NOW $65.00

Add
12 31 1 243 003, 12 31 1 244 480, 12 31 1 244 389, BMW R Airhead Alternator Brushes, BMW R Airhead Alternator Brush Springs, BMW R Airhead Alternator Holders, BMW R Airhead, BMW Airhead alternator Brushes, Airhead Alternator Brush, 14712453, 12 31 1 244 4 71 11 0 000 001, 71110000001, BMW, BMW AIRHEAD. BMW R60, R65, R75, R80, R90, R100, Moto Guzzi, BOSCH ALTERNATOR BMW R , 12311244642,12311244062, 12311244063, 12311357498, 0197002001, 0197002001, 0197002002, 0197002003, 12 31 1 244 062, 12 31 1 244 063, 12 12 32 1 244 409, 12321244409, BMW R airhead Voltage regulator, bmw r airhead, bmw r airhead voltage rectifier, BMW Airhead voltage regulator, Airhead voltage regulator, airhead voltage rectifier, bmw R voltage regulator, R Airhead voltage rectifier 12 31 1 244 062, 12 31 1 244 063, 12 31 1 357 498, BMW, BMW AIRHEAD, BMW R60, R65, R75, R80, R90, R100, Moto Guzzi, BOSCH ALTERNATOR BMW R , 12311244062, 12311244063, 12311357498, 0197002001, 0197002001, 0197002002, 0197002003, 12 31 1 244 062, 12 31 1 24