High Output Alternator for Ford Mustang (1994-2000) 3.8L
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High-Output 250-Amp Alternator for 1994-2000 Ford Mustang (SN95)
What it Does: The 250-Amp High-Output Alternator replaces the factory charging unit on the 1994-2000 Mustang to eliminate idle voltage drop and maintain clean, stable 14-volt power across auxiliary electronics.
The Stock Ford Mustang Charging Deficiencies
Factory charging systems on the SN95 platform paired with the Essex 3.8L V6 were engineered with 95 to 130-amp stators designed strictly for factory auxiliary loads. When owners add electric cooling fans, upgraded stereo amplifiers, or high-volume fuel pumps, the factory alternator is pushed past its thermal limits. At low idle speeds, current generation plummets, triggering headlight dimming, under-voltage codes, and heat-induced diode failure inside the stock rectifier housing.
The Engineering Solution
This heavy-duty 250-amp unit delivers substantial charging capacity across the entire RPM band, ensuring ample amperage at engine idle. Precision-wound with heavy-gauge copper windings and paired with a heavy-duty diode bridge, it mitigates heat soak and eliminates voltage droop under heavy loads. The cast housing directly mounts to factory engine brackets, aligning with OEM serpentine drive geometry and superseding part numbers AL7534X, 7771, and F4ZU10300DA.
What's Included
- 1x 250-Amp High-Output Alternator
Technical Specifications
| Fitment | 1994-2000 Ford Mustang |
|---|---|
| Engine / Chassis | Essex 3.8L V6 / SN95 |
| Stock Output | 145-190 hp / 215-220 lb-ft |
| Replaces OEM Part # | AL7534X, 7771, F4ZU10300DA, F4ZUDA, 7771N, 7771-250A |
Compatibility
- 1994-2000 Ford Mustang Base Coupe 3.8L V6
- 1994-2000 Ford Mustang Base Convertible 3.8L V6
Frequently Asked Questions & Fitment Warnings
Does this fit the SN95 Mustang?
Yes, this is a direct fit for the 1994-2000 Ford Mustang equipped with the Essex 3.8L V6 engine.
Do I need to upgrade my charging wiring?
Yes, upgrading the primary B+ alternator charge lead to a 4-gauge fused power wire is strongly advised to safely handle the increased 250-amp output.
The Ford Muscle Standard
Designed for demanding muscle car applications, this charging component provides the electrical headroom required to keep ignition coils fully charged and high-performance fuel systems running at full pressure.
Fitment
Fitment
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Warranty
Warranty
All products are backed by our Limited Lifetime Warranty. We stand by our quality. [See terms]

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$236.95