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ARP Harmonic Balancer Bolt Kit (11-17 GT)

Item 18237
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Ship to: Ashburn - 20149
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Upgraded Hardware
      • 12 Point Head Design
      • Made from 8740 Chromoly Steel
      • Black Oxide Finish
      • Rated at 200,000psi
      • Bolt and Washer Included
      • Made in the USA
      • Fits 2011-2017 5.0L V8 Mustangs


      Performance Upgrade. Prevent a crankshaft failure when installing a new harmonic balancer (crankshaft damper) in your Mustang by replacing your old stock bolt with an ARP Harmonic Balancer bolt and washer kit. The ARP Balancer Bolt that offers maximum clamping force to ensure that the balancer is locked in place.

      Premium Quality. This ARP Harmonic Balancer Bolt is made in the USA from 8740 chromoly and hardened to a tensile strength of 200,000 psi to provide reliable performance. The bolt is heat treated and then rolled to provide optimum fatigue strength. Includes 1/4-inch thick wide-area washer.

      Application. This ARP Harmonic Balancer Bolt and Washer are designed for use with 2011-2017 Mustangs equipped with the coyote 5.0L 4 valve V8 engine.

      Fitment: 2011 2012 2013 2014 2015 2016 2017 Details

      ARP 156-2502

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (6)

      Write a Review

      Ratings Summary

      5.0 out of 5 overall rating from 6 customers

      • May 23, 2019

        5 2016 GT - HunterG

        Great Quality

        This part was easy to install, fit perfectly and had great quality

        Helpful (0)
      • December 21, 2018

        5 2017 GT - JesusT

        Looks really strong and easy to install

        The install was a breeze and most likely wont have to replace again

        Helpful (7)
      • August 28, 2018

        5 2013 GT - OscarG


        Arp producets never disappoints, works great with my current engine set up!

        Helpful (8)
      • August 05, 2018

        5 2012 GT - LajoalM


        Great bolt easy install just make sure you follow the instruction and shouldn't have any problems with it.

        Helpful (9)
      • June 22, 2017

        5 2013 GT - bullitt1204

        Great bolt

        The quality of the bolt and super thick washer and being 12 point. Looks awesome. It looks great with a ati super damper.. would deff suggest getting this as the factory bolt isnt as strong as this one either.

        Helpful (10)
      • March 03, 2013

        5 2013 GT - kodchad

        very strong bolt

        this bolt is the only bolt you will ever need again for your crank it is strong and it will never break

        Helpful (10)

      Questions & Answers (2 answers)

      2 Top Rated Questions

      Will this bolt work with the 15-17 S550 Coyote Motors?

      • S550 Coyote motors have different internals than those from 2011-2014 Coyote motors. The internals in the S550s are forged and stronger as they are based off of the 2012-2013 Boss engines. With that being said, unfortunately this will not work.

      Helpful (1)

      Is this a one time use only or can it be reused?

      • We would advise to not reuse this once installed and in operation.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Harmonic Balancer Bolt
      • (1) Washer

      Tech Specs

      • Thread Size: 12mm x 1.50 - Right Hand
      • Head Style: 12-point
      • Washer Included: Yes
      • Fastener Yield Strength: 200,000 psi
      • Fastener Material: Chromoly
      • Fastener Finish: Black oxide

      Will It Fit My Mustang

      • Boss 302 - 12, 13
      • GT - 11, 12, 13, 14, 15, 16, 17

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