What belt for Roush TVS phase 1?

Discussion in '2005+ Mustang GT 4.6L Tech' started by golkhl, Sep 15, 2019.

  1. golkhl

    golkhl forum member

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    What belt do I need as a service replacement for my 05-09 TVS phase 1 kit, and where can I buy it? Thank you.
     
  2. xkillerxnatedog

    xkillerxnatedog Member

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    I always like going to rock auto! Or American muscle they both have great parts for decent prices..
     
  3. 07 Boss

    07 Boss Senior Member

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    Uhhh.... Roush? At least call them and get the size if you can't read the numbers on your current one.
     
  4. DiMora

    DiMora More Is Better

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    Belt information (6 rib) and 8 rib conversion info

    Roush 6 rib belts:

    2005/2006 FEAD M90 belt: RPP# R07020015 -13-AA / PN 401967 / 131.732"

    2007/2008 FEAD M90 belt: RPP# R07020032-13-AA / PN 402065 / 132.441"

    2009/2010 FEAD M90 belt: RPP# R07020063-13-AA / PN 404078 / 132.638"

    2007/2008 TVS / P51 belt: RPP# R07020041-13-AA / PN 403805 / 134.370" / (135" OC)*

    There is also another 6 rib TVS single belt Phase Two belt that came out PN 421160 3378MM / 132.992”

    Roush P51B Dual Belt:

    1st Sheave: PN 404168 Stock Mustang GT Belt
    2nd Sheave: PN 404306 1670MM / 65.748”

    Goodyear 8 Rib Gatorback belts (no 6 ribs available in Roush lengths from Goodyear):

    4081295 8PK3290 8 129.5 130.25

    4081360 8PK3455 8 136 136.75

    DAYCO 8 rib belts (Top width 1.10” .169” thick) (No 6 ribs in Roush length from DAYCO):

    5081325 132.50 8 W Profile EPDM, Aramid Reinforced Rubber



    5081363 136.30 8 W Profile EPDM, Aramid Reinforced Rubber



    GATES belts (6 and 8 rib):



    K061360 136 5/8 6 Micro V belt Width 13/16 (20mm) 40°rib angle



    K081331 133 3/4 8 Micro V belt Width 1 3/32 (28MM) 40°rib angle



    K061360HD 136 1/2 6 13/16 (20MM) 40° FLEET runner Heavy Duty



    K081331HD 133 ¾ 8 1 3/32 (28) 40° FLEET runner Heavy Duty
     
  5. golkhl

    golkhl forum member

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    DiMora, is there a 6 rib gates belt in 133” length? Thank you.
     
  6. MrAwesome987

    MrAwesome987 forum member

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    You can always just cut 2 ribs off an 8 rib...
     
  7. 07 Boss

    07 Boss Senior Member

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    You don't have an belt adjuster on your TVS? I'm not familiar with the belt routing on a Roush though I do know the alternator gets moved, but I have a little pulley on as slot that can give me up to 1"-2" of belt length adjustment. Whipple. Is that unique to the Whipple set up? I would think it would be incorporated into any belt driven SC, but I assume a lot.
     
  8. Pentalab

    Pentalab forum member

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    The story I got was the Roush 6 rib belts are actually 8 rib belts...with 2 ribs cut off. They flip the 8 rib belt inside out, then place it over a mandrel and slice 2 ribs off.
     
  9. Pentalab

    Pentalab forum member

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    The roush HD tensioner, should allow for a tiny bit of wiggle room, but only a tiny bit. Having one or more idlers /alternator mounted on a slotS would be a good fix ..... provided it didn't shift in the slot. That's one helluva lot of tension on a belt. A separate 2nd or 3rd hole, on a bracket for an idler would eliminate any bolt-slot slippage problems.
     
  10. 01yellerCobra

    01yellerCobra forum member

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    If he's talking about the Whipple set up I think he his, I have the same style on my 04. I switched the normal snub idler for it. It's an awesome piece. It's already saved me money on belts. And it's pretty stout. I have yet to hear about one slipping.
     
  11. DiMora

    DiMora More Is Better

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    Use the 132.6” Roush belt or as stated above, grab an 8 rib K081331 Gates and cut off 2 ribs with an X-Acto knife.
     
  12. Midlife Crises

    Midlife Crises Junior Member

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    golkhl
    If your running the 4” Roush pulley on your TVS then the belt should be R07020041-13-AA.
    If you have upgraded to the 3.5” pulley you would use the same belt and replace one of the idlers with larger 90mm version.
     
  13. DiMora

    DiMora More Is Better

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    That’s a 134”.
     
  14. 07 Boss

    07 Boss Senior Member

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    In the picture below you can see the small pulley between the SC and the alternator. That is my belt adjustment pulley.
    [​IMG]

    And in the upper right you can see the bottom of the pulley and the 1"-2" slot it maneuvers in. I've never had a problem with the adjustment changing, never had it slip. And I use a thump racing tensioner and have it set pretty deep in its travel so there is quite a bit of tension on it. The force of tension is not in line with the slot so that might help it hold better. But like I said, never had an issues with it and it gives you quite a bit of adjust ability in belt length.
    [​IMG]
     
  15. Midlife Crises

    Midlife Crises Junior Member

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    The next shorter Roush belt I am aware of is R07020062-13-AA. Part#421160. This is the belt that fits when running the 2.75” pulley.