Name: Mechman 390-Amp High Output Alternator 1996-2020 GM Truck/SUV 4.3L 4.8L 5.3L 5.7L 6.0L (Black)
Brand: Mechman Alternators
SKU: 679866704
Price: 1080.02 USD
Availability: InStock
Rating: 3 (4 reviews)

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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$1080.02

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

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Description

⚡ Power Up Your GM Beast — Stay Charged, Stay Ahead!

VOLTAGE BOOST UP TO 17 V - Easily upgrade to higher voltage outputs with Mechman’s GM 4-pin regulator and booster harnesses—perfect for lithium batteries.
POWER YOUR RIDE WITH 390 AMPS - Unleash unmatched electrical performance for all your modern AGM and lithium battery needs.
DURABLE FINISH 2 YEAR WARRANTY - Built to last with a rugged casting finish and backed by a solid manufacturer warranty for peace of mind.
PLUG PLAY FOR 1996 2020 GM MODELS - Includes all harnesses and adapters for seamless installation across multiple GM truck and SUV generations.
VERSATILE MOUNTING MULTI ALTERNATOR READY - Supports multiple bracket setups and custom mounts for ultimate flexibility in your build.

The Mechman 390-Amp High Output Alternator is a desertcart exclusive designed for 1996-2020 GM trucks and SUVs. Delivering over 390 amps at 14.5-15V, it supports modern AGM and lithium batteries with optional voltage boosting up to 17V. It includes all necessary harnesses for easy installation, supports multiple mounting options, and comes with a durable finish plus a 2-year warranty—making it the ultimate upgrade for reliable, high-performance electrical power.

Specifications

Asin	B0DNRG6TM4
Best Sellers Rank	#1,642,687 in Automotive (See Top 100 in Automotive) #6,687 in Automotive Replacement Alternators
Brand	Mechman Alternators
Customer Reviews	3.8 3.8 out of 5 stars (11) 3.8 out of 5 stars
Date First Available	November 21, 2024
Exterior	Natural
Item Model Number	AMP-14009390B
Manufacturer	Mechman Alternators
Manufacturer Part Number	AMP-14009390B
Model	AMP-14009390B

Reviews

User

High output alternator is a must!!!

A must upgrade for those bass heads easy to install comes with harness bypass pin you will need to run a smaller belt

2.12.2025

User

Doesn’t fit

Doesn’t fit 2010 Silverado with a 4.8l ls! Don’t waist your time!

20.11.2025

User

Exelente

Exelente ,sigan fabricando mas igual de buenos

23.09.2025

User

No Warranty Help

Have issue with the harness. Truck battery light on constantly. I’ve installed three of these prior with no issues. Asked for a replacement and none ever sent

3.06.2025

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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$1080.02

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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