Help your alternator deliver the direct current your battery and electrical system depend on with the Standard Ignition Alternator Rectifier Set, part number D-23 (also written D23). It is a direct-fit replacement for many Ford, Lincoln and Mercury vehicles, among them the 1986-1992 and 1994 Ford F-150 (L6-4.9L, V8-5.0L, V8-5.8L) and the 1986-1989 Ford Mustang (L4-2.3L, V8-5.0L).
A failing rectifier can show up as a battery that won't stay charged, dim or flickering lights, or a charging-system warning light. Because other charging-system parts can cause the same signs, diagnose the cause before replacing. If a failed rectifier is the problem, this set is designed to replace it when the alternator is serviced.
Coverage also includes many other Ford, Lincoln and Mercury vehicles. See the Buyer's Guide tab for the full list.
What does an alternator rectifier set do?
It converts the alternating current (AC) made by the alternator's stator into direct current (DC), which charges the battery and powers the vehicle's electrical system.
What are signs the rectifier may need replacing?
Possible signs include a battery that won't stay charged, dim or flickering lights, or a charging warning light. Other charging-system faults can cause these too, so diagnose the cause before replacing.
Which vehicles does the D-23 fit?
It fits many Ford, Lincoln and Mercury vehicles, including the 1986-1992 and 1994 Ford F-150 (4.9L, 5.0L or 5.8L) and the 1986-1989 Ford Mustang (2.3L or 5.0L). See the Buyer's Guide tab for the full list.
How many rectifier sets do I need?
The listed applications use one rectifier set, and this listing is for one set.
Which engines are covered?
Coverage runs from the L4-1.3L up to the V8-7.5L, including the L6-4.9L, V8-5.0L and V8-5.8L. Check the Buyer's Guide tab for the exact engine listed for your vehicle.
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.
