--- product_id: 679866704 title: "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" price: "3632.66 DT" currency: TND in_stock: true reviews_count: 4 url: https://www.desertcart.tn/products/679866704-mechman-390-amp-high-output-alternator-1996-2020-gm-truck store_origin: TN region: Tunisia --- # 390+ Amps High Output One-wire Turn On + Multi-Bracket Fits 1996-2020 GM Trucks/SUVs 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 **Price:** 3632.66 DT **Availability:** ✅ In Stock ## Summary > ⚡ Power Up Your GM Beast — Stay Charged, Stay Ahead! ## Quick Answers - **What is this?** Mechman 390-Amp High Output Alternator 1996-2020 GM Truck/SUV 4.3L 4.8L 5.3L 5.7L 6.0L (Black) by mechman alternators - **How much does it cost?** 3632.66 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/679866704-mechman-390-amp-high-output-alternator-1996-2020-gm-truck) ## Best For - mechman alternators enthusiasts ## Why This Product - Trusted mechman alternators brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Voltage Boost Up to 17V:** 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. ## Overview 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. ## Description This desertcart Exclusive high output alternator by Mechman is designed to meet the needs of GM trucks and SUVs from 1996 to 2020. With a voltage of 14.5 to 15V and an amperage of 380+, it provides reliable and efficient performance for today's modern AGM style batterys. The alternator comes with a pulley, one wire capable, and clockwise rotation. This alternator is also capable of being run on multiple alternator setups, brackets and custom-made mounts making it extremely versatile. If you are needing higher voltage output for lithium-based batteries, this alternator uses a GM 4pin regulator that will accept Mechman voltage booster harnesses for easy, reliable and cheap voltages up to 17 volts! It also has a 2-year manufacturer warranty and is a performance part suitable for universal fitment. The casting finish adds to the durability of the alternator. We include all necessary wiring harnesses and adapters to fit the year spans from 1996 to 2020. H104 harness for 1996 to 2004 P101 and P103 combo for 2005-2020 The only item left to purchase will be your 0-gauge power and ground wires to go directly to your battery and the half inch shorter belt. Please see gallery picture for belt part number reference. WE MAKE IT EASY! ## Features - Fits most 1996 to 2020 GM Trucks and SUV's - Comes with harnesses for both 1996-2004 and also the 2005-2020 models - Not for racing use and requires a half inch shorter belt for operation - Includes directions - One wire turn on and multiple bracket capable - desertcart Exclusive ## Technical Specifications | Specification | Value | |---------------|-------| | 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 | ## Images ![Mechman 390-Amp High Output Alternator 1996-2020 GM Truck/SUV 4.3L 4.8L 5.3L 5.7L 6.0L (Black) - Image 1](https://m.media-amazon.com/images/I/71vJRTNK2gL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ High output alternator is a must!!! *by on Reviewed in the United States December 2, 2025* A must upgrade for those bass heads easy to install comes with harness bypass pin you will need to run a smaller belt ### ⭐ Doesn’t fit *by on Reviewed in the United States November 20, 2025* Doesn’t fit 2010 Silverado with a 4.8l ls! Don’t waist your time! ### ⭐⭐⭐⭐⭐ Exelente *by on Reviewed in the United States September 23, 2025* Exelente ,sigan fabricando mas igual de buenos ## Frequently Bought Together - Mechman 390-Amp High Output Alternator 1996-2020 GM Truck/SUV 4.3L 4.8L 5.3L 5.7L 6.0L (Black) - TKDMR 10pcs 1/0 AWG-3/8 Battery Lugs,Heavy Duty Wire Lugs,Ring Terminals,Battery Cable Ends,0 Guage terminals,Battery Terminal Connectors with 10pcs 3:1 Heat Shrink Tubing - Sanuke 10pcs 1/0 AWG-3/8 Battery Lugs, UL Listed Heavy Duty Wire Lugs Ring Terminal 0 Guage terminals Battery Cable Ends/Terminal Connectors with 3:1 Heat Shrink Tubing --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/679866704-mechman-390-amp-high-output-alternator-1996-2020-gm-truck](https://www.desertcart.tn/products/679866704-mechman-390-amp-high-output-alternator-1996-2020-gm-truck) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-15*