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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370A High Output Alternator for Cadillac Escalade, 2003 - 2014 6.0L V8 (364c.i.) Delco Unit, 145 Amp

Product ID 8302-370-HD28-50

1 of 4

370A HD SERIES Direct Fit Alternator for Cadillac Escalade
Idle Output:	185+ AMPS
Full Output:	370+ AMPS @ 1200 Engine RPM !

Total Output: 370+ AMPS

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Price: $495.00

List Price: $689.00

High Output Alternator for Cadillac Escalade 2003 - 2014 6.0L V8 (364c.i.) – Direct Fit, Bolt-On, Plug & Play

Upgrade your Cadillac Escalade with this high-output alternator, designed for maximum performance and unmatched reliability. This unit is a *direct-fit replacement, mounting exactly like your factory alternator while delivering significantly more power.

Key Features:

1. Direct Fit & Plug-and-Play Installation

– No modifications should be required! This alternator connects directly to your Cadillac Escalade's existing 6.0L V8 (364c.i.) engine brackets and utilizes the same or similar plug.

2. 370A FULL Output @ 1200RPM and 185A @ Idle!

– Unlike competitors, this alternator delivers full output at just 1200 RPM, providing consistent power across all driving conditions.

3. 100% Brand New! Made in the 🇺🇸USA!🇺🇸

- We don't require a core charge because all of our inventory is 100% Brand New. Watch out for the other guys selling 'rewound' eBay junk. 🔊"If they want your core, find a better store!".

4. Monster Audio Performance

– Ideal for high-amperage car audio systems, competitions, and multiple battery setups.

5. One-Year No-Hassle Warranty

– Industry-leading warranty with comprehensive one year coverage!

Why Choose PowerBastards High-Output Alternator?

Designed to handle the increasing electrical demands of your Cadillac Escalade while supporting additional accessories, including:

🔹 High-Performance Car Stereo & Video Systems (Amps, Subs, Speakers, DVD Players, Inverters)
🔹 Overland, 4x4 & Off-Road Vehicles
🔹 Boondock Camping
🔹 CB Radios & Communication Equipment
🔹 Aftermarket HID & LED Lighting
🔹 High-Performance Ignition Systems
🔹 Alcohol Injection, Hydrogen Generators
🔹 Winches, Air Compressors, & Snow Plows
🔹 Law Enforcement, Fleet and Emergency Vehicles
🔹 Military and Up Armored Vehicles
🔹 Portable AC Power Inverters like CarGenerator

Every unit undergoes rigorous dyno testing before shipment, ensuring you receive a fully functional, 100% guaranteed high-output alternator the first time!

Buy with Confidence! Quality You Can Trust

➡️ 5 Star Customer Testimonials ⭐️⭐️⭐️⭐️⭐️
➡️ Battle Tested for Daily Driving and Competition Use
➡️ Highest Quality Components for Maximum Compatibility and Reliability

*🔧 Upgrade Your Wiring for Maximum Performance!

Don’t forget to enhance your charging system with our BIG ZERO 0AWG Wire Kit for improved electrical flow and efficiency. This kit is incredibly easy to install and provides maximum current from your new high output alternator directly to your battery.

🚀 Fast Shipping & Hassle-Free Ordering!

📦 Same-Day Shipping: Don't get stuck in the pits for weeks ordering from the other guys. Most orders placed before 2 PM EST, Monday – Friday ship the same day**! Get your high-output alternator delivered fast so you can get back on the road!

💳 Secure Checkout: We accept all major credit cards, PayPal, Venmo and financing options for a smooth, worry-free transaction.

🔄 Easy Returns & Exchanges: Need a different unit? No problem! We make returns and exchanges simple with our hassle-free process.

☎ Expert Support: Have questions? Our knowledgeable team is here to help with installation, troubleshooting, or recommendations—just give us a call, text, chat or email!

🛒 Order Now & Get Back on the Road!

** Same day shipping does not apply to special orders or powder coating.

Order Your New Cadillac Escalade High AMP Alternator Today!

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3 Product Reviews - Average rating 5 / 5 (Show All)

Killer power

Jonathan - 3/1/2025

I installed this in my 2012 Avalanche and my lights, winch and stereo are all running with out any sags in voltage. I did get their 0awg kit and it works as well. Kudos for the kilowatts!

Finally the real deal Powerbastards!

GregGG89 - 2/26/2025

I tried many other brands the powerbastards HOA for my Silverado works awesome! Thanks mike for your help with my questions!

Superman of alternators

amazeballs84 - 11/7/2020

Do not screw around with other products. Order here! Third time and they have not let me down yet.