372Pcs Car A/C Repair Kit, 270PCS O-Ring Set + 102PCS Car Air Conditioner Valve Core Kit with Double Head Install Tool, A/C R12 R134a Refrigeration Tire Valve Stem Cores, O-Ring Seals Kits

Welcome to our store！Features:372-piece car A/C repair kit270 green rubber O-rings in 18 sizes102 valve cores for R12 and R134a systemsValve core remover/installer tool includedOrganized storage in labeled compartmentsSpecifications:Product Name: 372pcs Car Air Conditioning Valve CoreColor: Green (O-Rings) + Silver/Brass (Valve Cores)Material: Rubber (O-Rings) + Aluminum/Brass (Valve Cores)Total Weight: 305gProduct Dimensions:O-Rings: 18 sizes (20 pcs each for most sizes, 15 pcs for some)Size details: 5.29x1.78, 6.07x1.78, 7.8x1.9, 6.8x1.9, 7.65x1.78, 8.8x1.9, 8x2, 11x2, 12x2 mm (20 pcs each); 10.82x1.78, 10.77x2.62, 13.9x1.8 mm (15 pcs each); 13.95x2.62, 14x2, 15x2, 17x2, 17.17x1.78, 17.04x3.53 mm (10 pcs each)Packaging Dimensions: 21x11x5 cmPackage Contents: 270pcs x O-Ring, 102pcs x Valve Core, 1 x Valve Core Remover/Installer ToolRemarks:Due to manual measurement, there may be some errors in size.Due to different screen displays, colors may vary slightly.Ensure correct O-ring size for application. Use appropriate safety precautions when servicing A/C systems. Recover refrigerant properly before opening A/C system. Valve core tool included; follow instructions for use. Store in cool, dry location. Not for use with incompatible refrigerants or oils.

• Complete 372-Piece A/C Repair Kit：This comprehensive kit includes 270 green rubber O-rings in 18 different sizes and 102 air conditioning valve cores with a valve core remover tool. The 270 O-rings provide coverage for most common A/C system sealing applications, while the 102 valve cores support both R12 and R134a system maintenance. The kit includes a valve core removal and installation tool, allowing users to replace faulty valve cores without equipment. The set is organized in labeled compartments for easy identification and selection during repairs.
• O-Ring Material And Performance：The green O-rings are made from rubber material with properties including superior flexibility, high resilience, good elongation, and temperature resistance suitable for automotive A/C applications. The rubber composition maintains sealing performance under the pressure and temperature variations found in air conditioning systems. The green color indicates compatibility with refrigerant systems and helps identify the O-ring material type during installation. The 18 different sizes cover common A/C fitting diameters, reducing the need for separate O-ring purchases for each repair.
• Valve Core Construction And Compatibility：The valve cores are constructed from aluminum and brass, providing durability in A/C system environments. The brass components resist corrosion from refrigerant and oil mixtures, while the aluminum housing provides lightweight strength. The kit includes valve cores compatible with R12 and R134a systems, supporting both older and newer vehicle A/C configurations. Some valve cores are also suitable for tire valve stem applications, extending the kit's utility beyond A/C repairs. The dual-head remover tool is designed to work with both A/C valve cores and tire valve cores.
• Organized Storage For Easy Access：Both the O-rings and valve cores are stored in labeled plastic boxes with individual compartments, allowing users to quickly locate the correct size or type during repairs. The organized storage reduces time spent searching through loose parts and minimizes the risk of using the wrong size O-ring. The compact boxes can be kept in vehicle trunks or workshop toolboxes for ready access during maintenance. The labeled compartments help less experienced users identify correct sizes based on application requirements.
• Application Versatility：This A/C repair kit functions across multiple applications including automotive air conditioning systems, household appliances, pumps, pipes, faucets, doors, windows, bearings, and tire valve stems. For automotive use, the kit supports repair of leaking A/C systems, compressor seal replacement, and valve core replacement. For tire maintenance, compatible valve cores allow repair of leaking tire valve stems. The O-rings seal connections in plumbing, pump, and mechanical systems. The comprehensive kit supports professional mechanics, DIY enthusiasts, and vehicle owners performing routine maintenance.