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Ford Motorcraft Serpentine Belt (00-04 GT; 01 Cobra; 01 Bullitt; 03-04 Mach1)

Market Price $39.99 You Save 18% ($7.00)
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FREE Shipping on orders over $49
  • Item 52935
  • MPN# JK6-941

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Features & Details

  • Routine Maintenance
  • Direct Fit Replacement
  • 6 Ribbed V Belt
  • Circumference: 94 1/8"
  • Motorcraft Part# JK6-941
  • Fits 00-04 GT, 01 Cobra, 01 Bullitt and 03-04 Mach 1
Routine Maintenance. Keeping your pony running strong means routine maintenance which includes replacing your old, cracked, and slipping serpentine belt with a brand new Ford Motorcraft Mustang Serpentine Belt from AmericanMuscle.

Application. This Ford Motorcraft Serpentine Belt is a direct fit replacement for the 2000 to 2004 4.6L GT, 2001 SVT Cobra, 2001 Bullitt and 2003 to 2004 Mach 1 Mustangs.

Technical Note. It is recommended to replace your belts at intervals of approximately 3 years or 36,000 miles.

Fitment: 2000 2001 2002 2003 2004 Details

What's in the Box
  • (1) Serpentine belt
Installation Info
Tech Specs
Will it fit my Mustang?
  • Bullitt - 01
  • Mach 1 - 03, 04
  • Cobra - 01
  • GT - 00, 01, 02, 03, 04

People Who Bought This Item Also Bought

Most Helpful Reviews

Perfect fit.

Previous belt was frayed and squeaking horribly until the car warmed up to operating temp. Took 20 minutes to put on because I've never done it before. Needed an extra set of hands to hold the tensioner ...

Read More
Helpful (1)

Great product!

I had almost 100,000 miles on my Bullitt Mustang's original belt, so it was definitely time to change it. Great price, great fit!

Helpful (1)

Overall Rating 5 out of 5 stars
Read All 41 Reviews

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2 Questions / 2 Answers

Ask a Question

Okay, I'm confused. Our '03 GT takes this part number, but our '04 Mach1 takes part number JK6947AA. Is this just the same exact Belt with a different model part number designation? Thank you.


  • I apologize for any confusion, we have tested this belt on the 2003-2004 Mach 1 Mustang and it worked just fine. I am sure why there would be a secondary part number but I can reassure you this belt will work just fine.


Helpful (0)

Will this belt work with a procharger supercharger? I have a 2003 GT with a procharger in it, will a standard belt work with this or will I need a special belt?


  • If your procharger has a separate belt drive system, then your kit probably uses the factor accessory drive belt. If there is only one belt for the accessories and the prochrager, that will be a special belt. Most often a spate drive belt is used.


Helpful (0)

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Customer Reviews (41) Write a Review

Overall Rating 5.0

out of 5 stars

  • 5/5

    January 28, 2017

    Perfect fit.

    Previous belt was frayed and squeaking horribly until the car warmed up to operating temp. Took 20 minutes to put on because I've never done it before. Needed an extra set of hands to hold the tensioner off the belt, but not a big deal. Fixed all the noise the old belt was making.


    Year: 2004 Submodel: GT

    Helpful (1)

  • 5/5

    January 25, 2017

    Great product!

    I had almost 100,000 miles on my Bullitt Mustang's original belt, so it was definitely time to change it. Great price, great fit!


    Year: 2001 Submodel: Bullitt

    Helpful (1)

  • 5/5

    October 03, 2016

    Mach 1 serpentine belt

    My original belt was whining and squeaking non stop. This new belt from AM fixed that. Easy 10 minute install and car runs so smooth.


    Year: 2003 Submodel: Mach 1

    Helpful (1)

  • 5/5

    March 14, 2016

    New belt

    Put serpentine belt on with new Sr performance alternator much quiter..... thanks American muscle


    Year: 2001 Submodel: GT

    Helpful (1)

  • 5/5

    December 20, 2015

    Much Needed

    Left work on a Saturday morning and heard a nice high pitch squeak, immediately realized my belt had finally gone. After looking around at local shops, this was the cheapest Motorcraft belt I could find. I placed my order on Sunday and it arrived by Tuesday, very pleased with the shipping. Install was a piece of cake with it only taking approximately 15 minutes. I do suggest you watch an install video before hand, take pictures of how your belt is set up before replacing, and have an extra set of hands to make it a bit easier. Overall, great fit, easy install, and not a bad price. Would personally recommend buying this belt if you're in need of a replacement.


    Year: 2003 Submodel: GT Wilmignton, DE

    Helpful (1)

  • 5/5

    November 26, 2015

    Good Replacement Belt

    My old serpentine belt definitely needed replacing, so I bought this. It fits perfectly and so far it's still in great shape; no chips, cracks, or fade marks. Motorcraft is the way to go!


    Year: 2003 Submodel: GT Glendora, NJ

    Helpful (1)

  • 5/5

    May 14, 2015

    best belt

    changed belts because mine was squealing this belt seems a lot tighter because it's new and now there is no motor slip because thean most aftermarket than most aftermarket belts


    Year: 2001 Submodel: GT ct

    Helpful (1)

  • 5/5

    April 09, 2015

    Never can go wrong with OEM

    Needed a belt for my 04 thought oem belt was gonna cost a arm and a leg but went to AM seen this belt for a great price couldn't pass it up. Best part of this buy is its made in U.S.A


    Year: 2004 Submodel: GT elkton, VA

    Helpful (1)

  • 5/5

    December 01, 2014

    Great parts great price

    The belt saved me about 25% compared to local stores and it fit perfectly, save money and do it yourself!


    Year: 2003 Submodel: GT Antioch California

    Helpful (1)

  • 5/5

    May 07, 2014

    No more squeaky belts

    Put the new belt on because my old one had 97,000 miles on it and was was really annoying. New belt went on in 10-15 minutes, look at it from every angle just to be sure its lined up right and you're good to go.


    Year: 2001 Submodel: GT Metro Detroit

    Helpful (1)

  • 5/5

    May 01, 2014

    Top quality

    Nothing cheap about this belt, it's as good as you could ask for!


    Year: 2003 Submodel: GT

    Helpful (1)

  • 5/5

    December 22, 2011

    OEM Belt

    When it comes to routine maintenance, I always like to stick with stock or OE materials. Nothing fits your Mustang better than the belt that came on it from the factory. Great fit and excellent durability. The only belt that's going on my 'Stang!


    Year: 2004 Submodel: GT Mobile, Alabama

    Helpful (5)

  • 5/5

    November 22, 2011

    Just like new!

    High quality and fit with absolutely no issues. Replaced the original after 110,000 miles. Fixed the little bit of squeak I had and you wouldn't know it hadn't come right off the lot. A whole 10 minutes to install, taking your time.


    Year: 2004 Submodel: GT Texas

    Helpful (4)

  • 5/5

    June 07, 2011

    Serpentine Belt

    Great price, perfect fit. Couldn't ask for more. Easy to put on if you have the map otherwise take a couple pics before you take the old one off just in case you need a reference.

    Todd B

    Year: 2002 Submodel: GT

    Helpful (3)

  • 5/5

    June 15, 2010

    Serpentine Belt

    Price and fast shipping, thats why I use American Muscle! Fits perfectly,easy to install!

    Harry Aniba

    Helpful (2)

  • 5/5

    June 30, 2015

    Don't hesitate, this is the belt your car needs.

    Easy to install. Installed with a new tensioner assembly. No squeak, or noises from the very first start. Excellent.


    Year: 2004 Submodel: GT Malvern, PA

    Helpful (1)

  • 5/5

    October 14, 2010

    New serpentine belt

    Simple installation and genuine Motorcraft part. As always, A.M. makes it easy. Click year and model and it comes out correct every time.


    Helpful (1)

  • 5/5

    October 14, 2010

    best buy

    One morning car started making weird noises from the belt, so I went to the ford dealer to get a new belt and they wanted 75 dollars, I went on american muscle and they had the same belt for cheaper, thanks american muscle


    Helpful (1)

  • 5/5

    October 14, 2010

    Great belt

    Fit perfectly took all but 10 mins to change were as my buddy did his at the same time in an 98 explore we went back and forth trying to get the right size about 3 times. Whitch made me happy I got mine from AM because I know it will fit. Thanks AM


    Helpful (1)

  • 5/5

    October 15, 2010

    04 mach 1

    Easy install.


    Year: 2004

    Helpful (0)