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.

High Output Alternators

Choose Your Make:

View ALL Makes

High Output Alternators for Geo

Home

» High Output Alternators

» Geo

Metro

Prizm

Storm

Tracker

If you own a Geo, you know these cars are known for their simple charm and reliability. But let's face it — the original electrical systems just weren't built to handle today's demands. Whether you're restoring a vintage Geo Metro or keeping your Geo Prizm running strong, upgrading to High Output Alternators for Geo is a smart move that keeps your car feeling fresh and responsive.

Why Choose a High-Output Alternator for Your Geo?

A standard alternator might work for basic needs, but if you want strong, consistent power for all accessories and upgrades, you need something more robust. Our high-output Alternators for Geo deliver superior performance, ensuring your headlights stay bright, your stereo sounds crisp, and all your gadgets work without a hitch.

A Geo high amp alternator provides greater electrical capacity than stock options, making it ideal for high-powered sound systems, extra lighting, and other aftermarket accessories. No more dimming lights or unreliable power — just smooth, steady performance every time you start the engine.

Key Benefits

Enhanced Power Capacity: Supports all factory systems and additional aftermarket upgrades reliably.
Longer Battery Life: Reduces strain and cycling for improved battery longevity.
Constant Voltage Delivery: Maintains stable power even at idle or low RPMs.
Direct-Fit Convenience: Simple installation without modifications.

Built for Geo Models You Love

Our High Output Alternators for Geo are carefully engineered to work perfectly with popular models like the;

Metro: Maintains reliable power for upgraded lighting and audio.
Prizm: Ensures consistent performance for enhancements and daily use.
Tracker: Handles off-road accessory loads like extra lights or stereos.
Storm: Suited for performance and custom-built electrical demands.

These older cars often need a little extra help to keep up with modern electrical needs, and a Geo performance alternator is exactly what they crave.

Installing a Geo alternator upgrade from PowerBastards is a straightforward process. Each unit is designed for direct fitment, so you won't have to deal with awkward modifications or unexpected issues. Just bolt it on, and you're ready to hit the road with confidence.

Improve Efficiency and Extend Your Car's Life

A high amperage alternator for Geo doesn't just help with immediate power demands — it also supports the long-term health of your vehicle. With a more reliable and consistent power supply, you'll reduce strain on the battery and other sensitive electrical parts. This means fewer unexpected breakdowns and more worry-free miles.

All of our High Output Alternators for Geo are built to the highest standards and rigorously tested to ensure dependable performance in real-world conditions. Plus, they have enough reserve capacity to accommodate future upgrades—like bigger audio systems or lighting—without sacrificing reliability.

Explore our range of High Output Alternators for Geo and find the perfect fit for your Metro, Prizm, Tracker, Storm, or other model. PowerBastards offers ready-to-ship, brand-new high-output units—with no core charges, 1-year hassle-free warranty, and same-day shipping (before 3pm EST) to get your system upgraded fast.