LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Porsche >> 1987 >> 944 Base, Standard >> Repair and Diagnosis >> Engine Performance >> Adjustment >> Tune-Up - 4-CYL >> Specifications >> Alternator Regulator
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Alternator Regulator

All models are equipped with Bosch alternator regulators, integral with alternator. Test regulator output with rear window defogger and headlights turned on, and engine at about 2000 RPM.

REGULATOR OPERATING VOLTAGE @ 68°F (20°C)

Application Voltage
All Models 13.5-14.5