(11761716668) - Compression Spring-535i (89-93), 735i (88-92), 318i/ti (92-99), Z3/1.9 (Genuine BMW) (5 available)

Part number 11761716668 is a Genuine BMW Exhaust Compression Spring. It is used to tension the mounting bolts at critical joints in the exhaust system—most commonly at the flexible junction between the exhaust manifold downpipe and the front catalytic converter/exhaust pipe section. This spring allows the exhaust system to flex slightly under engine torque, preventing cracks while maintaining a tight, leak-free seal. (base2-white-rt)

This compression spring is widely used across classic 4-cylinder, 6-cylinder, and V12 BMW models from the mid-1980s through the late 1990s: 

• 3 Series (E30): 1991 318i and 318is (M42 engine)
• 3 Series (E36): 1992–1999 318i, 318is, 318ic, and 318ti (M42 and M44 engines)
• 5 Series (E34): 1989–1993 535i (M30 engine)
• 6 Series (E24): 1985–1989 635CSi
• 7 Series (E32): 1987–1992 735i / 735iL and 1988–1994 750iL (M70 V12)
• 8 Series (E31): 1991–1997 850i, 850Ci, and 850CSi (V12 models)
• Z3 Roadster: 1996–1998 1.9L models