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EnDuraLast 4 High Output Charging System (450w / 32 Amp) - ALL BMW Airheads
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Part #: EDL4

THE ultimate upgrade for your BMW Airhead's charging system is this 450w alternator kit.

  • Updated Design with fewer Components
  • One Kit fits ALL Airheads - no need to know the stator size
  • Plug and Play Harness simplifies Installation
  • Detailed Installation Guide- see HERE
  • Easy Installation
  • Brushless
  • Proven International application over many years

The 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 not possible with the original system. The combined Voltage Regulator / Rectifier eliminates the two components most vulnerable to failure on the BOSCH charging system, namely the diode board and the voltage regulator. In addition the kit 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 Airhead electrical system efficiently and eliminates potential wiring errors and having to solder or crimp connectors.
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
Manufacturer #: Previously the EDL450-AltKit and EDL450-AltKit105

Brand :
USD Price $545.00

Quantity in Stock:15

Part #: EDL4

  • 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
  • Combination electronic voltage regulator /rectifier housed in finned cast-aluminum housing which mounts remotely for increased cooling and reliability (EDL450-VoltRect). which replaces the diode board and voltage regulator.
  • Bolts right on and wires up with a new plug and play harness.
  • No soldering or crimping of connectors is needed as all wires are preassembled.
  • 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

Note: A small percentage of customers report failure of the voltage regulator/rectifier when using dry cell batteries due to the greater internal resistance which can cause components to overheat. We recommend conventional wet acid or sealed AGM batteries. Lithium batteries typically prefer a smoother supply of voltage to have voltage conditioners to eliminate irregularities in the voltage supplied to them.

Installation Tips based on Previous Version (EDL450)

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