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Product highlights for the ROUSH Mustang Belt Tensioner, Heavy Duty 4.6L 3V (2005-2010):
- Same belt tensioner included in the 2010 ROUSHcharger® kits
- Heavy duty construction for handling extreme rotational forces on the FEAD from supercharging
- Upgrade kit for all SINGLE BELT TVS R2300 ROUSH superchargers for 2005-2009 Mustang GTs
This Mustang belt tensioner is the same belt tensioner that's included in the 2010 ROUSHcharger® kits, making it a replacement part for these packages:
- 2010 Mustang R2300 ROUSHchargerandtrade Kit (part #420026)
- 2010 Mustang R2300 ROUSHcharger® Upgrade Kit (part #420027)
- 2010 Mustang Chrome ROUSHcharger® (part #420024)
This tensioner is specially designed for heavy duty applications to handle the added rotational forces on the FEAD from supercharging.
This heavy-duty tensioner is an upgrade for all SINGLE BELT TVS R2300 ROUSH superchargers installed on 2005-2009 Mustang GTs.

Application | Mustang 2005-2010 |
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Difficulty | Intermediate |
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Time | 1 hour |
Tools | Basic tools |
Instruction URL | No |