The alternator I bought from you doesn't work.

Each alternator is bench-tested before shipping. Apparent failure is usually due to ordering the wrong unit, shipping damage, or installation mistakes. Verify the part number, inspect for damage, and review the proper installation steps (Technical Tip TT-648) before contacting support.

The alternator I bought from you doesn't "put out".

Low-output symptoms are often caused by factors outside the alternator. Measure voltage directly at the rear of the unit with a digital meter; if readings seem low, check the common issues listed below or return the alternator for a free bench test.

High-output alternators ship with an overdrive pulley that may require a belt about 1 inch shorter than stock. Use a quality, oil-free belt to prevent slip and ensure full output.

Regulator plug not plugged in, not seated properly or pinched wire

Make sure the small regulator plug on the alternator is fully seated and oriented correctly. A pinched or missing connection will prevent charging. Self-exciting models (e.g., Fitzall 220A+) do not use this plug.

Battery warning light bulb in dash missing, blown or bad connection

Some vehicles rely on the dash battery-warning bulb to excite the alternator. A blown, missing, or poorly connected bulb can cause a no-charge condition.

Customer changed alternator pulley

Replacing the supplied overdrive pulley with a larger-diameter pulley slows the alternator and decreases charge output.

Vehicle crankshaft pulley diameter too small

Aftermarket under-drive crank pulleys spin accessories more slowly and can severely reduce alternator output. Ensure the crank pulley is at least OEM size.

Main vehicle charge wire too small or not upgraded

Factory charge wiring is sized for OE amperage. When loads rise, upgrade to a heavier-gauge cable such as the Big Zero kit to avoid voltage drop and false low-output symptoms.

Too many grounds, insufficient grounds, or just bad wiring

Improper, corroded, or excessive grounds-as well as undersized or poorly crimped wires-can cripple alternator performance. Have a qualified technician inspect and correct wiring.

Bad, old, weak, damaged or cheap battery

Weak or inexpensive batteries-especially some gel-cell types-may not accept the alternator's current. Use a healthy wet-cell battery with sufficient cold-cranking amps.

Alternator possibly damaged during installation

High-output units contain sensitive electronics. Skipping the recommended battery-disconnect procedure or other steps in Technical Tip TT-648 can damage the regulator and cause no-charge conditions.

The alternator I bought from you doesn't fit.

Direct-fit models require no hardware changes. Universal Fitzall 220A+ units need custom brackets and may require a shorter belt.

Do you sell brackets, spacers or hardware to mount the Fitzall on my particular application?

Due to the vast number of vehicles, PowerBastards does not supply custom mounting hardware. Most customers fabricate brackets themselves or hire a qualified shop.

I tested my alternator and it only makes 30A.

Alternators supply only the amperage the system demands. Clip-on amp meters can be inaccurate; 30 amps may be normal at low load. Send the unit in for a free certified output test if in doubt.

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High Output Alternators for Ford Medium/Heavy

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Power matters when it comes to keeping your Ford Medium/Heavy truck running strong. At PowerBastards, we offer high-output alternators for Ford Medium/Heavy vehicles designed to handle everything from tough job sites to long highway hauls. If you rely on your truck to power heavy-duty tools, extra lights, or specialized gear, a stock alternator just doesn't cut it.

Our Ford Medium/Heavy high amp alternator lineup gives your truck the boost it needs to stay reliable and efficient no matter the demands. Whether it's an F-250 Super Duty, F-350 Super Duty, Transit, or E-Series Cutaway, our alternators deliver the consistent power you depend on every day.

Why Upgrade to a High-Output Alternator?

A high amperage alternator for Ford Medium/Heavy trucks is essential for anyone running added accessories or heavy electrical loads. Factory alternators are often undersized, leading to dimming lights, drained batteries, and underperforming equipment. Upgrading to a Ford Medium/Heavy performance alternator means your truck can run all your gear without missing a beat.

Key benefits

Stronger, more stable voltage to protect sensitive electronics.
Extra power to run winches, pumps, lighting, and inverters.
Reduced strain on your battery, which can extend its life.

When you choose a Ford Medium/Heavy alternator upgrade, you're investing in smoother daily operations and avoiding unexpected downtime.

Built Tough for Demanding Jobs

Our aftermarket alternator Ford Medium/Heavy solutions are built to withstand extreme conditions. Whether your truck is pushing through mud on a work site or hauling heavy loads down the interstate, you need an alternator that won't quit.

Each Ford Medium/Heavy high amp alternator from PowerBastards is designed for direct-fit installation. That means less hassle and more time on the road or job. Plus, every alternator is tested for durability, efficiency, and reliability to ensure you get the best.

Boost Your Truck's Efficiency

A Ford Medium/Heavy performance alternator does more than deliver power — it improves your truck's overall efficiency. With better voltage control and more consistent current, your truck's systems work smarter and last longer.

Our heavy-duty units help prevent electrical failures, protect vital components, and keep your truck's electronics functioning at peak performance. If you're using demanding aftermarket systems or commercial-grade accessories, a heavy-duty alternator, Ford Medium/Heavy, is an absolute must.

Reliable Power for Every Ford Medium/Heavy Model

At PowerBastards, we have the right high-amperage alternator for Ford Medium/Heavy models that offer quality, reliability, and lasting performance to keep you running strong. These alternators are engineered to support demanding electrical needs and keep your truck working strong, mile after mile.

Popular Ford Medium/Heavy Models We Support

F-250 Super Duty: Provides strong, steady power for towing, heavy equipment, and additional work accessories.
F-350 Super Duty: Supports extreme workloads and high-demand electrical setups without voltage drops.
Transit: Keeps fleet vehicles and commercial setups powered for delivery, service, or mobile workstations.
E-Series Cutaway: Ensures reliable performance for utility, shuttle, or specialty vehicle applications.

Explore our full range of High Output Alternators for Ford Medium/Heavy trucks to find the perfect fit for your needs.