Side view of the 1975 Jeep CJ6 L6 4.2L 12si high output alternator, built for durability and efficiency in Jeep electrical systems.
Side view of the 1975 Jeep CJ6 L6 4.2L 12si high output alternator, built for durability and efficiency in Jeep electrical systems.
Close-up shot of the stator inside the 1975 Jeep CJ6 L6 4.2L 12si high output alternator, designed for maximum power output in off-road conditions.
Front profile of the 1975 Jeep CJ6 L6 4.2L 12si high output alternator, featuring a rugged design built to handle demanding electrical loads.

1975 Jeep CJ6 L6 4.2L 12si High Output Alternator

Fitment: This is a direct fit high-output alternator for the 1975 Jeep CJ6 4.2L. Being a direct fit, this alternator fits directly into your stock...
Vendor: JS Alternators
SKU: 7127-9-CJ6-1975-4.2L-250-6003L
Availability: In Stock
$399.00
Please hurry! Only 0 left in stock
Amperage: 250 amp alternator
Pulley: V-Belt Pulley
Subtotal: $399.00
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Description
Description
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Fitment:

This is a direct fit high-output alternator for the 1975 Jeep CJ6 4.2L. Being a direct fit, this alternator fits directly into your stock alternator location.

Plug:

This high-output alternator comes with a 14.8 Volt GM Style Internal Regulator with one wire connection. This alternator is not plug-and-play and must be wired with the one wire connection.

NOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. View our Regulator Options Here.

Pulley:

This alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1/2" - 1" shorter belt.

See this Blog Article for assistance in finding the correct shorter belt.

Big 3 Wiring:

When Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the Big 3 Wiring Upgrade Kit. It is recommended to use 1/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code BIG3DISCOUNT at checkout.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.). Otherwise, customer is responsible for return shipping.

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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