Ignitions and Electrical Charging Systems

Js alternator

Js High-Output Alternator

$399.00

SKU: 2016-2023-chevrolet-cheyenne-5-3l-250-320-370-400amp-high-output-alternator

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In Stock
Ships by Aug 31
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Js alternator is a high-output alternator designed as a direct fit for the 2016-2023 Chevrolet Cheyenne 6.2L. It features a factory-style plug for easy integration with your existing wiring harness, maintaining a factory voltage set point. This alternator includes a smaller pulley to increase rotational speed and maximize output, which requires the installation of a 1/2" to 1" shorter drive belt.
Show original supplier description
The Js alternator offers a high-output solution for your 2016-2023 Chevrolet Cheyenne 6.2L. Engineered as a direct fit, it installs seamlessly into the stock alternator location, simplifying the upgrade process. This alternator utilizes a factory-style plug, ensuring compatibility with your vehicle's original wiring and maintaining its factory voltage set point. For those seeking custom voltage regulation, separate voltage regulator options are available. To achieve maximum output, this alternator is equipped with a smaller pulley that spins at a higher rate. This necessitates the use of a 1/2" to 1" shorter drive belt than the original. It is also strongly recommended to perform a Big 3 Wiring upgrade when installing a high-output alternator to handle the increased electrical demand. Js Alternators offers a discount on their Big 3 Wiring Upgrade Kit with the purchase of an alternator. Installation requires disconnecting the battery, removing the old alternator and belt, mounting the new unit, and installing the shorter belt. Proper grounding and connection of the frame/body to bare metal are crucial for optimal performance, especially on unibody vehicles. All electrical wiring should be kept at least 12 inches away from heat sources. A dash-mounted volt gauge is highly recommended to monitor charging system performance.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandJs alternator
Part Number2016-2023-chevrolet-cheyenne-5-3l-250-320-370-400amp-high-output-alternator
CategoryIgnitions and Electrical

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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