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ARS Racing Belt Tensioner - Low Profile (2011+ Mustang GT / F150) ARS9600-01BNP

ARS Racing Belt Tensioner - Low Profile (2011+ Mustang GT / F150) ARS9600-01BNP

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Item#:
ars-ars9600-01bnp
Price: $495.00
(4 reviews) Write a Review

American Racing Solutions Coyote Low Profile Racing Belt Tensioner Black (ARS9600-01BNP) - 2011+ Mustang GT 5.0L

Upgrade your supercharged Coyote-powered Mustang with the American Racing Solutions Low Profile Racing Belt Tensioner. Designed specifically for high-performance builds, this next-generation tensioner delivers improved clearance, superior belt control, and race-proven durability for demanding applications.

Machined from 6061-T6 billet aluminum, this tensioner is engineered to withstand the extreme stress of high horsepower and boost levels. Internally, it features a TGP shaft, hardened bushings, proprietary spring, and thrust bearings to ensure smooth operation and long-term reliability. Tested on both the dyno and track, this tensioner reduces or eliminates belt slip, helping maintain consistent boost and maximize power.

Low Profile Performance Design

The updated low profile design eliminates the need to modify or grind the factory tensioner, while providing additional clearance for high-performance setups. It is also compatible with up to a 20 percent oversized damper, making it ideal for aggressive builds.

Progressive Spring Technology

Featuring a progressive spring rated at 28-30 lbs, this tensioner provides optimal belt tension throughout its range of motion, improving belt stability without excessive load on components.

Direct Bolt-On Upgrade

This tensioner installs as a direct replacement for factory part numbers BT103 and BR3Z6B209H, requiring no brackets, adapters, or modifications.

Features

  • Designed for 2011+ Mustang GT 5.0L Coyote engines
  • Low profile design for improved clearance and fitment
  • Machined from 6061-T6 billet aluminum for maximum strength
  • Progressive spring tension rated at 28-30 lbs
  • Internal TGP shaft, hardened bushings, and proprietary spring
  • Thrust bearings for smooth and consistent operation
  • Reduces or eliminates belt slip for improved boost and horsepower
  • Compatible with up to 20 percent oversized damper
  • No grinding or modification of factory components required
  • Replaces OEM part numbers BT103 and BR3Z6B209H
  • Black anodized finish for durability and corrosion resistance
  • Requires double bearing pulley (sold separately)
  • 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

- Requires double bearing pulley (sold separately)
- Designed for supercharged and high-performance applications
- Compatible with oversized damper setups up to 20 percent

Fitment

- 2011 Ford Mustang GT 5.0L
- 2012 Ford Mustang GT 5.0L
- 2013 Ford Mustang GT 5.0L
- 2014 Ford Mustang GT 5.0L
- 2015 Ford Mustang GT 5.0L
- 2016 Ford Mustang GT 5.0L
- 2017 Ford Mustang GT 5.0L
- 2018 Ford Mustang GT 5.0L
- 2019 Ford Mustang GT 5.0L
- 2020 Ford Mustang GT 5.0L
- 2021 Ford Mustang GT 5.0L
- 2022 Ford Mustang GT 5.0L
- 2023 Ford Mustang GT 5.0L
- 2024 Ford Mustang GT 5.0L
- 2025 Ford Mustang GT 5.0L
- 2026 Ford Mustang GT 5.0L

CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

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  • 4
    ARS Tensioner

    Posted by Dax on Jul 14th 2025

    So far, it is doing what it should. Quality seems good, and fitment is as expected. 4 stars instead of 5 because 1- there are no instructions. Having a torque spec for the mounting bolt (its 35 lb-ft), and an understanding of the alignment marks on the tensioner would be nice. 2- The packaging was terrible. For something that costs this much, a decent padded box would have been nice, not just a single sheet of bubble wrap, thrown into a thin cardboard box that can easily be damaged during shipping

  • 5
    Belt tensioner

    Posted by Larry nash on Jan 6th 2024

    Installed it to day went for a ride first time I stepped on it it made 20lb of boost had to let out of it on the street can't wait to get to the track see if it will make 25lb of boost

  • 5
    2015 mustang Gt

    Posted by Austin on Jun 23rd 2023

    Have the 8 rib kit for the Paxton/vortech kit and git this long after and wish I got it sooner, easily made the biggest power difference out of any mod I done aside from the blower itself. I do recommend using the stock pulley bolt on this tensioner the one provided with the ars tensioner has a small head and it makes the socket want to slip off pretty bad on the install overall very satisfied did not expect it too make such a huge difference in power and boost pressure

  • 5
    Quality part

    Posted by mike ward on Nov 28th 2020

    Perfect fit, finish and it's heavy duty. Makes the OEM tensioner feel like a toy.