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Ignitions and Electrical› Charging Systems

Compu-Fire

Compu-Fire 40 Amp Charging System

$613.95 $552.56 Save $61.39

SKU: 55570

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Out of Stock
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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Compu-Fire 55570 is a 40 Amp, three-phase charging system designed for 1981-1999 Harley-Davidson Evolution Big Twin and Sportster models. It provides 25 Amps at idle and a continuous 40 Amps above 2800 RPM, making it ideal for fuel-injected engines and bikes with overdrive transmissions. The system features a unique narrow rotor and stator that fits into Softail, Dyna, and FLT primary cases without requiring frame modifications, and the voltage regulator bolts to the stock location. Its custom-designed flanged seal spacer offers maximum rotor support, and the voltage regulator output is calibrated to 14.25V.
Show original supplier description
The Compu-Fire 55570 is a 40 Amp, three-phase charging system designed for 1981-1999 Harley-Davidson Evolution Big Twin and Sportster models. It provides 25 Amps at idle and a continuous 40 Amps above 2800 RPM, making it ideal for fuel-injected engines and bikes with overdrive transmissions. The system features a unique narrow rotor and stator that fits into Softail, Dyna, and FLT primary cases without requiring frame modifications, and the voltage regulator bolts to the stock location. Its custom-designed flanged seal spacer offers maximum rotor support, and the voltage regulator output is calibrated to 14.25V.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandCompu-Fire
Part Number55570
CategoryIgnitions and Electrical

Videos

Static Timing the Compu-Fire HDE-1 Ignition on my Harley Davidson Evolution Project

Static Timing the Compu-Fire HDE-1 Ignition on my Harley Davidson Evolution Project

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Shipping

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