1999-04 Ford Mustang Alternator

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Vehicle Fit
Warranty & Shipping
Product Reviews

Our electrical and electronic parts are subject to strict quality testing.

Parts cannot be returned after they have been installed. Contact us with any questions before installing the parts.

Highest Quality Materials

Made from highest quality materials that meet or exceed OEM standards

Direct Fit Replacement

Direct fit replacement part guaranteed to fit and function properly for your specific application

Quality Tested

Quality tested and built to a strict level of product standards

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm -

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge.

4.67/ 5.0
3 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
The part came in one day late, which isn’t a big thing. The part itself was great! No issues since I have replaced it. It also if a direct fit which is a plus.
September 20, 2018
Mustang alternator
Great price got it when they said I would great fit not the first time I got part from A1 Auto and will not be the last I give them 5 stars
June 11, 2019
Eddie mustangs
Good quality and perfect Mach to my car
July 2, 2019
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Does it include regulator ?
Susan D December 21, 2015
From box to install
Julio valdes V December 21, 2015
Yes. All alternators for 99-04 mustangs have a built in regulator.
David D December 21, 2015
Hello, Yes the regulator is built in on these applications.
Brian F December 28, 2015
I have a 03 mach 1 would this work on it ??
Jose M August 7, 2017
It should work fine. It fit and works perfectly in mine. All websites say that it should fit the Mach 1
Jeremy S August 7, 2017

Fits the following Makes:

Year Make Model Description
1999-2004Ford Mustang Ford Mustang GT V8 4.6L SOHC Alternator
Part 1AEAL00447
In Stock

Orders must be placed by 2pm ET
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Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.