Santech MT0249 A/C System O-Ring Green HNBR - 20 Pack

The Santech MT0249 is a premium green HNBR (Hydrogenated Nitrile Butadiene Rubber) O-ring designed specifically for automotive air conditioning system applications. This professional-grade seal is engineered to withstand the demanding conditions of A/C refrigerant lines and connections, providing reliable sealing performance in high-pressure refrigerant environments.

Key Features:

• Green HNBR construction for superior resistance to refrigerants, heat, and automotive fluids
• 10.8mm diameter seal designed for precise fitment on A/C line connections
• Sold in convenient 20-piece packages for service and repair operations
• Manufactured to strict OEM specifications for reliable sealing performance
• Compatible with BMW, Mini, Infiniti, Opel, and Saab A/C systems

These O-rings are commonly used on refrigerant line connections to the condenser, compressor suction pipes, and other A/C system junction points. HNBR material provides excellent chemical resistance to R-134a and R-1234yf refrigerants, as well as PAG and POE compressor oils. Cross-references to OEM part numbers including BMW 64508375741, 64500141209, and Saab 4756599.