Standard Ignition Alternator Diode P/N:D-7
Standard Motor Products
Keep your charging system converting power the way it should with the Standard Ignition Alternator Diode D-2P. It fits many vehicles, including the 1969-1971 Chevrolet Camaro 3.8L / 4.1L / 4.9L / 5.0L / 5.3L / 5.4L / 5.7L / 6.5L / 6.6L / 7.0L and the 1963-1972 Chevrolet C10 Pickup 3.8L / 4.1L / 4.6L / 4.8L / 5.0L / 5.3L / 5.4L / 5.7L / 6.6L.
An alternator diode is part of the alternator's rectifier circuit. It lets current flow in only one direction, so the alternator's AC output can be converted into the DC power that charges the battery and runs the electrical system.
Signs that an alternator diode may need replacing include a battery that won't stay charged, dim or flickering lights, a lit charging warning light, or a whine from the alternator. Other parts can cause these symptoms, so test the charging system before replacing parts.
Applications span Chevrolet, Buick, Cadillac, GMC, Oldsmobile, International and American Motors models. See the "Vehicles it fits" section for the full list of years, models and engines.
Interchange: SC2P · 328925 · 655512 · DO305 · AC2P · 1852929 · 1959829 · 1964353 · 1971672
This part cross-references / interchanges with the following part numbers:
What does an alternator diode do?
It lets current flow in only one direction. This helps the alternator's rectifier convert AC output into the DC power that charges the battery and runs the electrical system.
Will the D-2P fit my vehicle?
It fits many vehicles, including the 1969-1971 Chevrolet Camaro 3.8L / 4.1L / 4.9L / 5.0L / 5.3L / 5.4L / 5.7L / 6.5L / 6.6L / 7.0L. Check the "Vehicles it fits" section for your exact year, model and engine.
How many do I need?
The listed applications call for 1 per application. This part has a minimum order quantity of 3.
What signs suggest a failed alternator diode?
Possible signs include a battery that won't stay charged, dim or flickering lights, a charging warning light, or alternator whine. Other parts can cause these, so test the charging system first.
What part numbers does it interchange with?
It interchanges with SC2P, 328925, 655512, DO305, AC2P, 1852929, 1959829, 1964353 and 1971672.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.