Excessive Amperage 390a Alternator for a 2020 Chevrolet Silverado 2500HD 6.6L

Name: Excessive Amperage 390a Alternator for a 2020 Chevrolet Silverado 2500HD 6.6L
Brand: Excessive Amperage
Price: 1000 USD
Availability: InStock

Excessive Amperage 390a Alternator for a 2020 Chevrolet Silverado 2500HD 6.6Lfont-size: large; *** No refunds once order is placed as this is a totally custom built, one off unit *** Custom built to order , direct bolt on plug and play. Excessive Amperage has been building alternators for almost 30 years and come with a 1 year warranty against manufacturer defects.

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Specifications

amperage amps

390

alternator type

high_output

Compare Prices(1 retailer)

Down4SoundAuthorized Dealer

Available

$1,000.00

Updated 6/22/2026

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Frequently Asked Questions

What is the Excessive Amperage 390a Alternator for a 2020 Chevrolet Silverado 2500HD 6.6L?

The Excessive Amperage 390a Alternator for a 2020 Chevrolet Silverado 2500HD 6.6L is a car audio equipment made by Excessive Amperage. View full specifications and where to buy on this page.

How much does the Excessive Amperage 390a Alternator for a 2020 Chevrolet Silverado 2500HD 6.6L cost?

The Excessive Amperage 390a Alternator for a 2020 Chevrolet Silverado 2500HD 6.6L typically sells for $700 to $1000 depending on the retailer and variant. Check the "Where to Buy" section for current pricing from authorized dealers.

Where can I buy the Excessive Amperage 390a Alternator for a 2020 Chevrolet Silverado 2500HD 6.6L?

You can purchase the Excessive Amperage 390a Alternator for a 2020 Chevrolet Silverado 2500HD 6.6L from authorized dealers listed in the "Where to Buy" section on this page. We recommend buying from authorized retailers to ensure warranty coverage and genuine products.