Power all your touring accessories with confidence using this **High Output 90 Amp Alternator**. Designed as a powerful upgrade for the **Honda GL1500 Gold Wing** (1990-2000), this unit more than doubles the amperage of the stock 40A alternator, solving common charging issues caused by extra lights, heated gear, and modern electronics.
This unit fits directly into the factory location but provides significantly more power. It addresses the known weaknesses of the original Hitachi units (such as weak rotor crimps) while delivering the juice needed for fully loaded touring.
POWER UPGRADE: Delivers 90 Amps compared to the stock 40 Amps. Ideal for bikes with added electrical accessories.
Key Features
✔High Output: 90 Amp capacity (Stock is 40A).
✔Direct Fit: Mounts exactly like the original.
✔Improved Reliability: Heavy-duty components.
✔Essential Upgrade: Perfect for heated gear & lights.
Technical Specs
Voltage:
12 Volts
Amperage:
90 Amps
Regulator:
Internal (IR)
Design:
Hitachi Style Upgrade
SKU Reference:
400-44102
Vehicle Fitment Guide
Make
Model
Year Range
Honda
GL1500 Gold Wing (Standard)
1990
Honda
GL1500A Gold Wing Aspencade
1991 - 2000
Honda
GL1500I Gold Wing Interstate
1991 - 1996
Honda
GL1500SE Gold Wing SE
1990 - 2000
Part Number Cross Reference
Honda (Stock Ref)
31100-MT2-015, 31100-MT2-005
Hitachi (Stock Ref)
LR140-708, LR140-708C
Arrowhead (Upgrade)
AHA0002
Lester
12527 (High Amp)
Frequently Asked Questions
Why do I need a 90 Amp alternator?
The stock 40A alternator barely covers the bike's base electrical load. If you add heated grips, extra lights, or amplified audio, the stock unit struggles. This 90A unit provides ample overhead power.
Do I need to upgrade my wiring?
While this unit fits directly, we highly recommend inspecting your main battery cables and main fuse. Some owners choose to upgrade the main charging wire to handle the potential extra current flow safely.
Does this include the rubber dampers?
No, this listing is for the alternator unit itself. You should inspect and likely replace the rubber drive dampeners (monkey nuts) when installing a new alternator to ensure smooth operation.
Note: Ensure your battery is fully charged before installation. Fast shipping available across the UK and Europe.
