NBR (nitrile butadiene rubber). Gates is a global leader in automotive belts, tensioners, hoses, and cooling system components—engineered for reliability, durability and OEM-grade performance. BMW Z3 Petrol Coupe RWD -- E36 3.0i 2000|2001|2002|2003 2979cc 170KW 231HP M54 B30 (306S3).
