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SpeedForm Radiator Extension Covers - Unpainted (05-09 GT, V6)

Item 41219-00
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      Review & Installation Video

      Hey, I’m Justin with, here with a great accent piece to the engine bay in any S197 Mustang, thanks to these OE style radiator cover extensions fitting all 05-09 Mustangs. As you’re probably well aware, the factory rad cover in your S197 covers just the radiator itself, and doesn’t extend all the way to the fenders, like the 2010 and newer covers do, which can leave an unfinished appearance. That’s where these extensions come in. These OE style extensions extend the factory rad cover all the way down to the fenders which covers up all that dead space over the headlights, basically making for a much cleaner appearance underneath the hood. The extensions are molded from a high impact plastic for superior durability, and a factory like fit and finish. As for the install, this is honestly as easy as it gets. If you follow the included instructions and use the two included bolts, you should have no problem getting this job done in about 15 minutes. If you’re looking for a small part that can go a long way in cleaning up your engine bay, then be sure to check out these OE style radiator cover extensions available right here at

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Clean Under Hood Styling
      • High Impact Plastic Material
      • Color Black Plastic
      • Sold as a Set of Two
      • Fits 2005 to 2009 GT and V6 Mustangs


      Painted Radiator Extension Covers Clean Styling. Add some extra detail to your Mustangs engine bay with a set of SpeedForm Radiator Extension Covers from AmericanMuscle for a clean custom appearance. These SpeedForm Radiator Extension Covers come unpainted so you can customize them however you like - they are also available pre-painted in factory colors.

      Quality Materials. The Radiator Extension covers are molded from a high impact plastic for long life and feature a black finish that matches the factory Ford radiator cover in color and texture.

      Simple Installation. Installation is quick and simple. These SpeedForm Radiator Extension Covers make a great addition to your 2005 to 2009 Pony.

      Application. These SpeedForm Mustang Radiator Extension Covers are designed to be a perfect fit on any 2005 to 2009 GT or V6 Mustang and are sold as a set of two, one driver side and one passenger side.

      Note: Driver's side cover will require modification if used in conjunction with the Ford Racing 85mm Cold Air Intake.


      Fitment: 2005 2006 2007 2008 2009 Details

      MPN# 41219-00

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (100+)

      Write a Review

      Ratings Summary

      4.5 out of 5 overall rating from 100+ customers

      Installation Time: Less than 1 Hour

      • January 25, 2020

        4 2009 GT - JoshuaW Installation Time: Less than 1 Hour

        Good look ok fit

        Looks great just wish the fit was a little better don't fit as snug as expected but overall worth buying

        Helpful (0)
      • January 02, 2020

        5 2007 GT - mustangkee Installation Time: Less than 1 Hour

        add this with the raditator cover

        very good quality. very affordable compares to the other sites

        Helpful (0)
      • December 22, 2019

        4 2005 GT - PhilD Installation Time: Less than 1 Hour

        Radiator Ext Covers

        Not a good fit,,,,had to drill and install 2 more bolts to make them lay flat

        Helpful (1)
      • December 19, 2019

        1 2009 GT - TonyC Installation Time: Less than 1 Hour

        SpeedForm Radiator Extension Covers - Unpainted

        I had to jerry-rig these to fit correctly, they only come with one mounting point. Also, they are not the same texture as the OEM cover in the center.

        Helpful (0)
      • December 11, 2019

        5 2005 V6 - 05stang Installation Time: Less than 1 Hour

        Clean look

        Easy install. I did use 2 push pins along with mounting screws. One on each piece to tighten up look. Item makes engine bay look cleaner.

        Helpful (0)
      • November 28, 2019

        5 2007 GT - CarlW Installation Time: Less than 1 Hour

        Rad Ext Covers

        Looks good matching the existing rad cover fairly well. Easy install that includes the black bolts.

        Helpful (0)
      • November 27, 2019

        4 2006 GT - BuckWaddell Installation Time: Less than 1 Hour

        '06 GT radiator extension..

        Much heavier duty then the ones I bought for my '05 from Jegs. BUT... the second mounting hole is no where close to where it should have been drilled above the headlight mounting bolt. Currently using double sided tape on a new product that I really dont want to screw up. American Muscle you need to have Speedform fix this issue...

        Helpful (0)
      • November 19, 2019

        5 2008 GT - PolishPower Installation Time: Less than 1 Hour

        Easy install and looks good!

        Super easy install and looks great. Should be a good idea for next years car shows! Get it.

        Helpful (0)
      • November 15, 2019

        5 2006 GT - 408Saleen Installation Time: Less than 1 Hour

        Great covers

        Great addition to the radiator cover looks like OEM

        Helpful (0)
      • November 04, 2019

        4 2005 V6 - LloydC Installation Time: Less than 1 Hour

        Helped finish off under look

        These are simple add on items that look like they could have been installed by Ford. I only used the passenger side though. I have the Ford Racing larger mass air sensor/air intake system. I fits up over where the left/drivers side would be. Both items can not be used at same time.

        Helpful (0)

      Questions & Answers (17 answers)

      5 Top Rated Questions

      I would like to buy these for my 07 mustang but it will not let me choose this year. Why is that?

      • We currently only have these SpeedForm Radiator Extension Covers available in Dark Highland Green, which was not available in 2005-2007. If your 07 is Dark Highland Green, you can purchase the units listed under 2008 or 2009 as they covers are the same shape.

      Helpful (2)

      I noticed only 2008/2009, should these not fit the 05-09 S197's ? I'd like to buy a pair if they fit up with the center radiator pre-painted cover.... thx in advance !

      • The SpeedForm Radiator Extension Covers are listing 2008 and 2009 only, as these are currently only available in the Dark Highland Green color offered only in those years.

      Helpful (1)

      anyone else have problems with these sitting flush over the headlights? i have raxiom DRL and these covers fit fine where the 10mm bolt is but rise up as you get closer to the outside edge of the headlights.

      Does this come with a hood prop rod hole cover?

      • This will come with the hole yes.

      Helpful (0)

      Do they come with out the hood prop rod hole? I have already upgraded to hood lift supports.

      • These SpeedForm Radiator Extension Covers will come with 4 bolt holes.

      Helpful (0)
      Post Your Question
      10 More Questions
      Will these work with the shelby cover? 1 answer
      Is there an option to have these painted to match the radiator cover? 1 answer
      Do you offer this part pre painted in Black for 2008 Mustang GT? 1 answer
      Are these compatible with the Saleen S281 which has a slightly modified grill to the GT? 1 answer
      Are the pre painted cover metal or the hard plastic and can you just paint the unpainted covers yourself ? 1 answer
      Are these compatible with the gt500 facia conversion? Thanks! 1 answer
      Have you quit selling these covers? Had planned on ordering a set. 1 answer
      Does the new covers have 4 - bolt holes ? 1 answer
      Will these covers fit with headlight covers since they roll over the top of the lights 1 answer
      Will these fit with CAI kits? Wanting to know if these extension cover will, fit on my 2006 Roush Mustang, with the Roush Cold Air Intake kit installed, with out modifying covers? If they need modifying, I will wait till the plain black plastic becomes available. 3 answers

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Left Radiator Extension Cover
      • (1) Right Radiator Extension Cover
      • (1) AmericanMuscle Instructions
        Hardware included:
      • (2) Bolts

      Tech Specs

      • Fits: 2005 to 2009 Mustangs
      • Does NOT fit Bullitt or GT500 Mustangs
      • Material: High Impact Plastic
      • Color: Black
      • Sold as a set of two

      Will It Fit My Mustang

      • GT - 05, 06, 07, 08, 09
      • V6 - 05, 06, 07, 08, 09

      Does not fit Bullitt or GT500 Mustangs

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