Check the listing for details. Patch Rubber Company 3/8 Inch Pilot Wire Patch Plugs for Tire Tread Punctures. Condition: New. Listed at 69.00 USD. New in box. Patch Rubber Company 3/8-Inch Pilot Wire Patch Plugs with 1-3/4-Inch Diameter Patch for Radial Tire Tread Puncture Repairs, (Box of 18) # 14042 The dual cure cushion gum coating on the stem and repair unit help create a permanent bond with the tire. Apply with CHEMBLUE Universal Cement #16460 or Patch Rubber Fast-Dry Cement #16451. Use #42379 3/8-Inch carbide cutting tool to ream and standardize the injury prior to installation of the pilot wire patch plug. 3/8" patch plugs are appropriate for truck tire injuries. Do not use this product for shoulder or sidewall injuries. SIZE- Plug stem diameter 3/8-Inch (10mm); Patch diameter 1-3/4-Inch (44mm) EFFICIENT- Combination patch plug fills and seals the injury in one step. The stem and repair unit are coated with Dual Cure Cushion Gum creating a permanent bond to the tire with increased adhesion when compared to chemical cure repair units EASY TO USE- A wire tip is molded into the repair unit and easily helps guide the stem through the puncture