Molded silicone rubber air hose for charger and intercooler connections on Volvo commercial engines Silicone rubber compound for heat resistance and durability in turbocharger air intake environments Rubber molded hose type for precise fitment and consistent seal geometry at both connection ends ID at 4" on both Side A and Side B for balanced air flow capacity through the charger circuit Centerline length at 16.53" on the long side for accurate routing across turbo and air charge components Short side centerline at 5.50" for compact elbow geometry in tight engine bay mounting positions