VINTAGE AIR This modified hose kit is designed for use with a complete Gen IV SureFit™ system in vehicles without a stock engine compartment configuration and core support. The kit contains refrigerant hoses with pre-crimped beadlock fittings on (1) end, with the other end open to accommodate a custom installation. All necessary fittings, O-rings and mounting hardware are also included, along with detailed installation and crimping instructions. Replacement Products