High Output Alternator for Alfa Romeo Spider (1972-1994) 2.0L

High-Amp 80A Alternator for 1972-1994 Alfa Romeo Spider (Tipo 115)

What it Does: The 80-Amp High Output Alternator replaces the low-capacity factory charging unit on the 1972-1994 Alfa Romeo Spider to deliver stable system voltage and prevent battery discharge under increased electrical loads.

The Stock Alfa Romeo Spider Charging Deficiencies

Factory charging systems on the classic **Tipo 115** Spider were equipped with modest 45-to-55 amp Bosch or Marelli units designed strictly for minimal vintage draw. With age and modern driving demands, heat soak from the exhaust manifold degrades the OEM diode trio and mechanical brushes. When running modern halogen headlamps, auxiliary electric radiator cooling fans, or upgraded audio components, system voltage drops well below 12.5 volts at idle. This voltage sag causes erratic sensor readings on SPICA mechanical injection setups and Bosch L-Jetronic or Motronic management systems, leading to rough idling, weak spark output, and chronic battery drain.

The Engineering Solution

This Made in USA 80-amp heavy-duty charging unit delivers a massive continuous amperage upgrade in a package that retains original engine bay packaging. Engineered with high-temperature copper windings, a reinforced rotor and stator assembly, and a robust internal solid-state regulator, it produces clean DC power with low ripple voltage. The reinforced heavy-duty diode bridge withstands the tight, heat-intensive engine bay of the **Alfa Romeo Nord 2.0L** twin-cam engine, sustaining full charging capability at low engine RPMs without over-stressing your electrical harness.

What's Included

• 1x 80-Amp High Output Alternator

Technical Specifications

Compatibility

• 1972-1982 Alfa Romeo Spider Veloce 2000 (Series 2 Coda Tronca) 2.0L
• 1982-1989 Alfa Romeo Spider Graduate, Veloce, Quadrifoglio (Series 3 Aerodinamica) 2.0L
• 1990-1994 Alfa Romeo Spider Veloce, Commemorative Edition (Series 4) 2.0L

Frequently Asked Questions & Fitment Warnings

Does this fit the Tipo 115 Spider?

Yes, this unit is a direct replacement for the 1972-1994 Alfa Romeo Spider equipped with the **2.0L Nord** engine, mounting directly to factory engine brackets.

Do I need to upgrade my main battery charge wire?

While this alternator utilizes factory-style connections, upgrading the main B+ battery lead to an 8-gauge or 6-gauge cable is recommended to safely transfer the full 80-amp capacity without voltage loss.

The Alfa Romeo Standard

Classic European electronics demand exact voltage regulation to preserve delicate factory gauges and harness integrity. This charging upgrade maintains pure OEM chassis fitment while delivering modern charging stability without triggering warning lights or risking component burnout.