High Output Alternator for Ford Bronco F-150 F-250 (1993-1996) 5.0L 5.8L

High-Output 250-Amp Alternator for 1993-1996 Ford Bronco, F-150, F-250 (OBS Chassis)

What it Does: The 250-amp high-output alternator replaces the factory charging unit on 1993-1996 Ford Bronco, F-150, and F-250 trucks to provide sustained electrical current for winches, auxiliary lighting, and high-demand accessories while eliminating voltage drop.

The Stock Ford Bronco, F-150, F-250 Charging Deficits

Factory OBS Ford trucks equipped with Windsor 5.0L and 5.8L pushrod V8s rolled off the assembly line with either 95-amp or 130-amp Ford 3G series alternators. When modified with modern electrical loads—such as recovery winches, dual-battery banks, high-draw stereo amplifiers, or off-road LED bars—these stock units face continuous thermal overload. At low engine idle (650–800 RPM), stock stators drop voltage below 12.6V, forcing the battery into a continuous discharge cycle. Sustained high-amperage draw quickly overheats the factory internal rectifier diodes, degrading insulation and causing premature stator winding burnout.

The Engineering Solution

Engineered and assembled in the USA, this direct-mount 250-amp unit delivers substantial current reserves across the entire RPM band, outputting reliable high-amperage power even at idle. Utilizing a heavy-duty wound stator, high-temperature copper windings, and an upgraded heavy-gauge avalanche rectifier bridge, this unit resists thermal degradation under continuous 100% duty cycles. Precision internal voltage regulation maintains a stable 14.2V to 14.6V system charge, directly replacing OEM units such as F07F-10300-AA and 7750 with OE-style bolt-in fitment.

What's Included

• 1 x 250-Amp High Output Alternator

Technical Specifications

Compatibility

• 1993-1996 Ford Bronco 5.0L
• 1993-1996 Ford Bronco 5.8L
• 1993-1996 Ford F-150 5.0L
• 1993-1996 Ford F-150 5.8L
• 1993-1996 Ford F-250 5.0L
• 1993-1996 Ford F-250 5.8L

Frequently Asked Questions & Fitment Warnings

Does this fit the OBS Bronco, F-150, F-250?

Yes, this is a direct fit for the 1993-1996 Ford Bronco, F-150, and F-250 equipped with the Windsor 5.0L and 5.8L V8 engines.

Do I need to upgrade my main charging wire when installing a 250-amp alternator?

Yes, installing a high-amp unit requires upgrading the battery positive charging cable to 4-gauge or 1/0-gauge wiring with an inline 250A-300A fuse to safely handle the increased current without melting the factory harness.

The Ford Heavy-Duty Truck Standard

Built for the rugged demands of heavy trail recovery, high-load hauling, and continuous commercial duty, this high-output charging unit ensures your truck's ignition and auxiliary systems receive unwavering voltage no matter how tough the terrain.