American Racing Solutions HEMI Street Performance Belt Tensioner (ARS6380A) - 2004+ Dodge 5.7L / 6.1L / 6.4L
Upgrade your supercharged HEMI setup with the American Racing Solutions Street Performance Belt Tensioner, designed to handle increased horsepower and boost levels while maintaining smooth, reliable operation. Built for street and performance applications, this tensioner delivers improved belt control and reduced slip compared to the factory unit.
Machined from 6061-T6 billet aluminum, this tensioner is significantly stronger than OEM cast components. Featuring nearly twice the spring tension of the factory tensioner, along with a TGP shaft, hardened bushings, proprietary spring, and thrust bearings, it provides consistent belt tension and long-term durability. Proven on both the dyno and track, this upgrade helps maintain boost and maximize horsepower.
Performance and Reliability
Designed for builds up to 700 horsepower, this tensioner provides increased belt stability without sacrificing drivability. The 38 lb spring offers the perfect balance of performance and longevity for street-driven supercharged applications.
Direct Bolt-On Upgrade
This tensioner installs as a direct replacement for the factory unit with no need for brackets, adapters, or modifications. It delivers a straightforward upgrade with immediate performance benefits.
Included Components
Includes a 70mm clear anodized billet pulley and mounting bolt, providing a complete solution for improved belt performance and durability.
Features
- Designed for 5.7L, 6.1L, and 6.4L HEMI engines
- Compatible with supercharged Charger, Challenger, and Grand Cherokee
- Machined from 6061-T6 billet aluminum for superior strength
- 38 lb spring tension for improved belt control
- Nearly 2x stronger than factory tensioner
- Internal TGP shaft, hardened bushings, and proprietary spring
- Thrust bearings for smooth and consistent operation
- Reduces or eliminates belt slip for increased boost and horsepower
- Includes 70mm clear anodized billet pulley and mounting bolt
- Direct bolt-on replacement with no modifications required
- Tested on dyno and track for proven performance
- Optional ceramic hybrid bearing upgrade available
- Lifetime guarantee against bending or breaking under normal use
Ceramic Bearing Benefits
- Up to 40 percent lighter than steel balls for reduced rotational mass
- Operates up to 50 percent faster than conventional bearings
- Reduced friction and rolling resistance for improved efficiency
- Significantly longer service life and durability
- Lower heat generation at high RPM
- Improved resistance to corrosion and thermal expansion
Additional Notes
- Recommended for street and performance builds up to 700 horsepower
- Ideal for supercharged applications requiring improved belt stability
- Ceramic bearing upgrade available for increased efficiency
Fitment
- 2004 Dodge Charger 5.7L HEMI
- 2005 Dodge Charger 5.7L HEMI
- 2006 Dodge Charger 5.7L HEMI
- 2007 Dodge Charger 5.7L HEMI
- 2008 Dodge Charger 5.7L HEMI
- 2009 Dodge Charger 5.7L HEMI
- 2010 Dodge Charger 5.7L HEMI
- 2011 Dodge Charger 5.7L HEMI
- 2012 Dodge Charger 5.7L HEMI
- 2013 Dodge Charger 5.7L HEMI
- 2014 Dodge Charger 5.7L HEMI
- 2015 Dodge Charger 5.7L HEMI
- 2016 Dodge Charger 5.7L HEMI
- 2017 Dodge Charger 5.7L HEMI
- 2018 Dodge Charger 5.7L HEMI
- 2019 Dodge Charger 5.7L HEMI
- 2020 Dodge Charger 5.7L HEMI
- 2021 Dodge Charger 5.7L HEMI
- 2022 Dodge Charger 5.7L HEMI
- 2023 Dodge Charger 5.7L HEMI
- 2005 Dodge Challenger 5.7L HEMI
- 2006 Dodge Challenger 5.7L HEMI
- 2007 Dodge Challenger 5.7L HEMI
- 2008 Dodge Challenger 5.7L HEMI
- 2009 Dodge Challenger 5.7L HEMI
- 2010 Dodge Challenger 5.7L HEMI
- 2011 Dodge Challenger 5.7L HEMI
- 2012 Dodge Challenger 5.7L HEMI
- 2013 Dodge Challenger 5.7L HEMI
- 2014 Dodge Challenger 5.7L HEMI
- 2015 Dodge Challenger 5.7L HEMI
- 2016 Dodge Challenger 5.7L HEMI
- 2017 Dodge Challenger 5.7L HEMI
- 2018 Dodge Challenger 5.7L HEMI
- 2019 Dodge Challenger 5.7L HEMI
- 2020 Dodge Challenger 5.7L HEMI
- 2021 Dodge Challenger 5.7L HEMI
- 2022 Dodge Challenger 5.7L HEMI
- 2023 Dodge Challenger 5.7L HEMI
- Jeep Grand Cherokee 5.7L, 6.1L, 6.4L HEMI (verify application)
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