Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$6,000 Winner!!! Dathon C. from TN Click Here!
Win $5,000 In Store Credit Enter Now

Modern Billet Jam Nut Collar Adapter; Black (15-20 GT, EcoBoost, V6)

Item 389115
Call a Mustang Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $36.99 You Save 24% ($9.00)
Our Price

$27.99 (each)

FREE Shipping on orders over $49

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
In Stock

Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

      Product Information

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


      • Required for Installing a 2011-2014 Shift Knob on a 2015-2020 Mustang
      • Retains Reverse Lock-Out
      • Billet Aluminum Construction
      • Black Anodized Finish
      • 12mm X 1.25 Thread Pattern
      • MT-82 Manual Transmission with Stock Handle
      • Fits All 2015-2020 GT, EcoBoost and V6 Mustangs


      Retains Reverse Lock-out. A Jam Nut collar adapter is required when installing an aftermarket 2011-2014 shift knob on a 2015-2020 Mustang to retain the Pull-Up Reverse Lock-out safety feature of the MT-82 manual 6 speed transmission.

      Superior Quality. CNC machined from aircraft quality billet aluminum for superior durability, this Jam Nut Collar Adapter features a black anodized finish for long lasting corrosion resistance.

      Application. This Black Jam Nut is specifically designed for use on 2015-2020 Mustangs equipped with the MT-82 manual 6 speed transmission for installation of an aftermarket 2011-2014 shift knob.

      Modern Billet

      Fitment: 2015 2016 2017 2018 2019 2020 Details

      Modern Billet 389115

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Jam Nut Collar Adapter

      Tech Specs


      Customer Reviews (31)

        Reviews of Modern Billet Drivetrain products have an average rating of 4.6 out of 5

          Questions & Answers

          10 More Questions

          Will It Fit My Mustang

          • Bullitt - 19, 20
          • EcoBoost - 15, 16, 17, 18, 19, 20
          • GT - 15, 16, 17, 18, 19, 20
          • V6 - 15, 16, 17

          Required for installing an aftermarket 2011-2014 shift knob on a 2015-2018 Mustang.

              Related Mustang Categories