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OPR Belt Tensioner Assembly (03-04 GT)

Item 100887
AmericanMuscle no longer carries the OPR Belt Tensioner Assembly (03-04 GT). Please check out 1999-2004 Mustang Underdrive Pulleys for an updated selection.
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Features & Details

  • Provides Proper Serpentine Belt Tension
  • Steel Pulley
  • Sealed-For-Life Bearing
  • Clockwise Rotation
  • Direct Fit Replacement
  • Ford Motor Company Equivalent Part# 2W7Z6B209AA
  • Fits 2003-2004 GT Mustangs
Correct Tension. Is your GT Mustangs serpentine belt slipping or squealing? Then you may be in need of a Replacement OPR Belt Tensioner to provide the correct tension to fix the problem.

OEM Quality. Made to the original factory specifications, this OPR Replacement Mustang Belt Tensioner has a 76mm steel pulley that features a sealed-for-life bearing to provide long reliable maintenance-free operation.

Application. This OPR Belt Tensioner Assembly is designed for use on the 2003 to 2004 GT Mustangs equipped with the SOHC 4.6L V8 engine. Equivalent to Ford part#2W7Z6B209AA.
  • Pulley Width: 31mm
  • Pulley Diameter: 76mm
  • Pulley Bearing Diameter: 40mm
  • Pulley Bearing Inner Diameter: 17mm
  • Pulley Grooves: 0
  • Pulley Material: Steel
  • Pulley/Belt Type: Serpentine
  • Tensioner Rotation: CW (Clockwise)
  • Maximum Belt Width: 31"


Fitment: Details

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (1) Belt Tensioner
Installation Info
Tech Specs
Will it fit my Mustang?

    Customer Photos (1) Submit Your Photo

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      Questions & Answers (4)

      4 Top Rated Questions

      Please modify your listing because I believe it is incorrect. Case in point, several of your reviewers claim to have installed this part (with no issues whatsoever) on model years other than 03 and 04. Could you look into this, because I would love to order this part for my 2000 GT? Thank you!

      • The OPR Belt Tensioner Assembly is a reproduction of the 2003-2004 GT belt tensioner, and is designed as a direct fit for these model years. We have heard of these being used on earlier models, but cannot recommend this as the tensioner was not designed for those year ranges.

      Helpful (0)

      Do y'all have a tensioner that will fit a 2002 GT?

      • Hello! Unfortunately, we do not carry a belt tensioner for the 02 GT.

      Helpful (0)

      Will it fit my 02?

      • Unfortunately, this tensioner assembly will not fit a 2002 Mustang. It will only fit the 03-04 GT models.

      Helpful (0)

      will this fit a 2003 Mach-1?

      • No, this is specifically designed for the GT and will not fit in your Mach 1.

      Helpful (0)
      Post Your Question

        Customer Reviews (14) Write a Review

        Overall Rating 4.7

        out of 5 stars

        • 5/5

          August 04, 2019

          Easy Swap

          Had to replace belt so I went ahead and replaced this at the same time since I have 160,000 miles. One of the simplest things you will replace.


          Year: 2003 Submodel: GT

          Helpful (0)

        • 5/5

          August 23, 2018

          Replacement belr tensioner

          Works well with my procharger that utlizes the main serpertine belt


          Year: 2004 Submodel: GT

          Helpful (8)

        • 5/5

          February 18, 2018


          Product fit perfect with no issues and has been on for about three weeks with no problems. Also install was simple with less than 5 min install time.


          Year: 2003 Submodel: GT

          Helpful (10)

        • 5/5

          March 16, 2017

          Perfect Fit

          I bought this part because mine was squeaking. After I put this one on, my mustang sounded great and could feel the difference. Would recommend replacing if you are over 150000 miles. Probably need it!


          Year: 2004 Submodel: GT

          Helpful (11)

        • 5/5

          January 30, 2017

          Stop clicking noise

          It was installed easily and stopped a clicking noise that sounded like a lifter tick great product


          Year: 2003 Submodel: GT

          Helpful (12)

        • 5/5

          April 20, 2016

          Great Replacement!

          If you're thinking about going with a generic brand replacement, you will be spending money on another tensioner soon. This is a solid built replacement for any performance Mustang on the street!


          Year: 2004 Submodel: GT

          Helpful (12)

        • 4/5

          November 15, 2015

          Tensioner pulley

          It's a good product just didn't come with the bolt to put it on


          Year: 2003 Submodel: Mach 1 Tampa Florida

          Helpful (13)

        • 5/5

          June 30, 2015

          A must with a new belt on these older cars.

          As your racks up the miles, so do the engine accessories. Always check the tensioner when doing a belt service and replace it if necessary. This unit is a 100 fit and went on with a new belt. Simply can't be beat for an oem drive system replacement part.


          Year: 2004 Submodel: GT Malvern, PA

          Helpful (12)

        • 5/5

          June 14, 2015

          Looks great and fixes the squeak.

          My old tensioner was going out, creating a squeak which got worse under acceleration. After easily installing this replacement, it went away immediately. Looks great and feels sturdy, AM doesn't let me down.


          Year: 2003 Submodel: GT Palmetto, FL

          Helpful (12)

        • 5/5

          May 29, 2015

          Belt Tensioner

          This tensioner replaced my OEM stock tensioner. It was a great replacement and you can really tell the difference. I would recommend this belt for anyone who is in need of a belt tensioner awesome product and the price makes it that much better.


          Year: 2002 Submodel: GT San Antonio, TX

          Helpful (12)

        • 4/5

          May 29, 2015

          Good product-- Watch for blower clearance

          Great product-- direct bolt-in and keeps the belt nice and tight with no slips. Just a heads up, if you have a Procharger, you will have to grind down the flange that sticks up past the pulley or else it will hit the blower bracket when releiving tension.


          Year: 2003 Submodel: GT Hatfield , PA

          Helpful (13)

        • 5/5

          September 26, 2014

          Belt Tensioner

          I bought this Belt Tensioner for my Stang 02 GT., because the one that I had was worn out and I felt I was loosing performance on my beast and was still the stock one also It's a excellent product and made of very good material so it can resist the power of your Pony . Looks awesome under the hood., fits and work like It suppose to. Yes I will recommend this product 100%. Thanks AM for another great product.


          Year: 2002 Submodel: GT Katy, TX, USA

          Helpful (10)

        • 5/5

          June 28, 2014

          Belt Tensioner Assembly Kit (03-04 GT)

          The assembly is equvialent to OEM with simple instalation and less expensive than OEM. When replacing the tensioner best to also change the idler pulleys and the belt however AM apparently does not sell the idler pulleys.


          Year: 2003 Submodel: GT Yorkton, SK, Canada

          Helpful (13)

        • 3/5

          March 21, 2014

          Works as intended

          This was a very easy install. The tensioner works perfectly as it should, and looks very similar to the OEM tensioner. This did not solve my belt squeaking, so I need to do some more digging and hope that it is coming from a pulley or the belt, and not a throwout bearing.


          Year: 2002 Submodel: GT Minnesota, USA

          Helpful (12)

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