We love old Airheads but we all know that the weakest link in the entire motorcycle is the charging system. So why not upgrade that tired old system and get rid of those charging system issues once and for all!
This kit includes all the components to replace your under-performing 240w BOSCH charging system. Featuring a Permanent Magnet Rotor which eliminates the brushes and potential rotor failure. The Hi-Output Stator produces significant AC voltage at lower RPM's, which is not possible with the original system.
The standard 4 system comes with a voltage regulator/rectifier that eliminates the two components most vulnerable to failure on the BOSCH charging system, namely the diode board and the voltage regulator.
The lithium specific systems comes with a MOSFET regulator/rectifier that is specifically designed to mount under the front engine cover replacing the diode board for a clean, simple installation.
In addition, both of these kits includes a rotor removal tool, a new timing cover oil seal and a caliper for accurate measurements. The new plug and play harness connects the new alternator to your Airheads electrical system efficiently and eliminates potential wiring errors and having to solder or crimp connectors.
note: The 4Li system will work with conventional lead acid and AGM batteries, however it will have a slightly lower voltage regulation of 14.3 volts +/- 0.3 (often required by Lithium type batteries).
Complete your upgrade with the EnDuraLast Crank Mounted Ignition System, EDL-IGNS that is specifically designed to mount on this alternator!
NOTE: The /5 Airhead models require a starter relay modification. Please review the Installation Guide for details.
Vehicle Manufacturer: BMW
Application: BMW Airhead Models
Make/Model: BMW R45, R50, R60, R65, R75, R80, R90, R100
Model Years: 1969 to 1996
Power Rating: 450 Watts @ 14 Volts = 32 Amps
Features:
- Updates the BMW Airhead original, under-performing 20 amp (max) alternator and diode board with modern components.
- The critically important higher amperage output of this system at low engine RPM's allows use of lighting, heating and other accessories to be used without discharging the battery or overloading the original charging system.
- High-tech permanent magnet rotor will never overheat and short out. Brushless design eliminates worn out rotor slip rings and brushes.
- Eliminates "burnt out warning light" no-charge condition of Bosch systems
- MOSFET lithium specific voltage regulator / rectifier housed in machined billet aluminum housing mounts where the original diode board was providing a clean simple installation.
- Bolts right on and wires up with minimal wiring.
- Original alternator/engine cover fits over the alternator with no alterations required.
- Designed and manufactured to modern OEM specifications.
- Incredible low RPM output of 280 Watts at just 2000 RPM's
