Roush · New
Roush 2005-2010 Ford Mustang 4.6L 3V Heavy Duty Belt Tensioner
MPN 404225 · Store SKU rsh404225
Supplier stock checked 11/7/2026, 1:17:30 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
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 ROUSHcharger & Upgrade; 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. Mustang Belt Tensioner is a heavy duty replacement part for 2010 ROUSHcharger kits ROUSH 2005-2010 Mustang Belt Tensioner, Heavy Duty 4.6L 3V
Manufacturer fitment & guides
- 2005-2010 Ford Mustang
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y
