PLEASE NOTE: Due to tremendous demand, your order is likely to be delayed up to 4-8 weeks. We are doing everything we can to reduce this time. Sorry for the inconvenience, and thank you for your patience.
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 |