Have a dog car harness but the tether is damaged? If the dog car harness is still in good shape, you can purchase just a tether. We have three sizes of replacement tethers from Bergan and one size of replacement tether from PetBuckle. The Bergan replacement tether can be used with any seat belt system. The PetBuckle Kwik-Connect tether can only be used on 2001 model cars with a latch bar between the seat cusions. Other dog car harness accessories include an auto zip line and the AngelGuard. The auto zip line can be used with our Kurgo Tru-Fit Smart dog car harness, Bergan dog car harness, and PetBuckle dog car harness without the tether. It can not be used with Guardian Gear or Cruising Companion dog car harness brands such as the standard, plaid, Ride Right, or Houndstooth. The AngelGuard can only be used with the Kurgo Tru-Fit Smart dog car harness brand.