Compufire Charging System - 32amp `1981-1999 BT (except Efi) — Harley-Davidson Electra Glide Classic, Softail Custom, Tour Glide Classic (1981-1999)

Compufire 32-amp charging system for 1981-1999 Harley-Davidson Big Twin models with carburetors. Direct replacement for stock charging systems that restores reliable output on aging electrical infrastructure.

Features

• 32-amp output capacity
• For carbureted Big Twin applications only
• Made in the USA
• Drop-in replacement for stock charging systems

Specifications

• Brand: Compufire
• Manufacturer Part #: 55520
• UPC: 694342548018
• Amperage: 32
• Length: 8 in
• Width: 5 in
• Height: 8 in
• Weight: 9 lbs

Fitment

Fits 1981-1999 Harley-Davidson Big Twin models with carburetor engines. Not compatible with EFI-equipped models.

Frequently Asked Questions

Will this work on my 1999 Harley with fuel injection?

No — this 32-amp system is for carbureted Big Twins only. EFI models require a different charging solution.

Can I use this on a 2000+ Big Twin?

This part is engineered for 1981-1999 models. Post-1999 Big Twins use updated electrical architecture and require updated charging components.

Is this a direct replacement for stock?

Yes — it bolts in place of the factory charging system with no modifications needed on compatible carbureted models.

Why 32 amps instead of stock output?

Higher amperage provides more reliable charging for aftermarket electrical loads like upgraded audio, lighting, or heated accessories.