These press-fit spacers and washers are used with many Radium Engineering kits for thermally isolating the fuel rail from the engine. NOTES: These are sold individually. Double check how many are required prior to purchasing. Spacer height measurement does not include press-fit insert length. Example: total height for 14-0482 Phenolic Insulating Spacer, 11mm is 17.3mm. Mounting hardware is not included. However, most bolts are common and can be sourced in local hardware stores. SPACER SPECIFICATIONS: Material: Phenolic Resin Outer Diameter: 19mm Inner Hole Diameter: 9.6mm Press-Fit Outer Diameter: 14.2mm Press-Fit Insert Length: 6.4mm Max Temperature: 265F Tensile Strength: 17,000psi WASHER SPECIFICATIONS: Material: Phenolic Resin Outer Diameter: 14.5mm Inner Hole Diameter: 8.1mm Washer Thickness: 1.3mm Max Temperature: 265F