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Alternator Rotor & Brushes - BMW R 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
 
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Part #: BOALT-Rotor642

EnDuraLast BOSCH Alternator Rotor for BOSCH Charging System. Made in Tawain

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 R Airhead 2 Valve, Moto Guzzi with BOSCH Alternator
Application: BMW R Airhead 2 Valve, Moto Guzzi with BOSCH Charging System
Make/Model: BMW R 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 to verify vehicle fitment)

Brand : 123
BMW List Price $417.84
EME Price $99.00
BUY NOW $79.00
You save $338.84!

Part #: BOALT-ROTOR642


Rotor Removal Tool [Add $8.00]

BMW Rotor Oil Seal [Add $8.25]

MGSeal-840:
Moto Guzzi Rotor Oil Seal [Add $7.95]

Qty:  
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

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