NOTES: 1. These are sold individually. Double check how many are required prior to purchasing.2. Spacer height measurement does not include press-fit insert length. Example: total height for 14-0711 Insulating Spacer, 11mm is 17.3mm.3. These can be used as replacements for Radium Engineering fuel rails that use phenolic spacers.4. Mounting hardware is not included. However, most bolts are common and can be sourced in local hardware stores. SPACER SPECIFICATIONS: Outer Diameter: 19mm Inner Hole Diameter: 9.6mm Press-Fit Outer Diameter: 14.2mm Press-Fit Insert Length: 6.4mm Max Temperature: 210F Tensile Strength: 17,000psi