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 Jaguar

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420, 420G

E-Pace

F-Pace

F-Type

When you own a Jaguar, you know it's more than just a car — it's a statement of luxury, power, and cutting-edge technology. At PowerBastards, we offer high-output alternators for Jaguar vehicles that deliver the extra power your sophisticated systems need without breaking a sweat. Whether you're running a powerful sound system, custom lighting, or advanced driver assistance features, our alternators keep every component working perfectly.

Why Upgrade to a High-Output Alternator for Jaguar?

Your Jaguar is built with advanced electronics and luxury features that require a strong and steady flow of power. A standard alternator often struggles to keep up, leading to flickering lights, battery drain, or even electronic malfunctions. That's where our High Output Alternators for Jaguar come in. They're designed to deliver higher amperage and stable voltage, even under heavy electrical loads.

By choosing a Jaguar high amp alternator, you'll enjoy benefits like:

Stronger power delivery for all onboard systems
Better support for high-powered aftermarket accessories
Reduced risk of battery failures
Improved reliability and longer component lifespan

Our high-amp alternators are engineered to fit perfectly without any modifications, making the upgrade process seamless and hassle-free.

Premium Engineering and Reliability

Each High Output Alternator for Jaguar from PowerBastards is built to the highest standards. We know Jaguar owners expect excellence, so our alternators undergo strict quality checks to ensure consistent performance, even during intense use or heavy traffic.

Crafted with heavy-duty components, the Jaguar performance alternator easily handles increased electrical demands. Whether you own an F-Pace, XF, XE, or F-Type, these alternators deliver reliable power that matches Jaguar's reputation for luxury and performance. More than a simple replacement, this upgrade enhances your entire driving experience.

Protect Your Electronics with a High-Amp Alternator for Jaguar

Modern Jaguars rely on advanced electronic modules to keep everything from the digital dash to safety systems running smoothly. Installing a high-amperage alternator for Jaguar helps maintain stable power, protecting these sensitive electronics from voltage drops and potential damage. You'll drive with peace of mind knowing your vehicle's electronics are in top shape, no matter how demanding the conditions.

Why Choose PowerBastards for Your Jaguar Alternator Upgrade?

At PowerBastards, we stand out for our commitment to quality and customer satisfaction. Our aftermarket alternator Jaguar options are not just replacements — they're significant upgrades designed to outlast and outperform factory units. We back our products with extensive testing and expert craftsmanship, so you can count on reliability from day one.

When you choose us for your Jaguar alternator upgrade, you're investing in:

Top-tier engineering and build quality
Direct-fit design for easy installation
Long-lasting durability
Exceptional customer support

Tailored Options for Popular Jaguar Models

We understand that every Jaguar model has unique requirements. That's why we offer alternators designed specifically for models like the F-Pace, XF, XE, and F-Type. Each option comes with the same promise: superior electrical performance and unmatched reliability.

Upgrade today and give your Jaguar the robust power it deserves. Explore our range of High Output Alternators for Jaguar and discover how a Jaguar high amp alternator can transform your ride. With PowerBastards, you're not just replacing a part — you're enhancing your entire driving experience. Command the road with confidence and enjoy every mile to the fullest.