BMW part number 18301723807 (superseded by 07119915071) fits a wide range of classic and 1990s BMW models from roughly 1971 to 2003. Because its part number prefix (18 30) belongs to the exhaust system group while its replacement (07 11) is a general hardware part number, it serves primarily as an exhaust support bracket bolt as well as a general M8x16 chassis fastener.
- Secures Exhaust Mounts & Brackets. In its original
18301723807 designation, it fastens exhaust system support brackets, hangers, and catalytic converter or muffler mounts to the transmission or chassis.
- Prevents Vibration Loosening. The bolt features a captive, integrated washer (
M8X16-Z3-2) that distributes clamping load and helps keep the fastener tight against engine and exhaust vibration.
- General Chassis & Body Hardware. Under its superseded number
07119915071, BMW uses this exact same bolt across non-exhaust diagrams to secure bumper brackets, underbody heat shields, and engine bay mounts.
- 3 Series (1977–1999). E21 (320i), E30 (318i, 318is, 325e, 325es, 325i, 325is, 325ix, M3), and E36 (318i, 318is, 323is, 325i, 325is, 328i, 328is, M3).
- 5 Series (1979–2003). E12 (528i, 530i), E28 (524td, 528e, 533i, 535i, M5), E34 (M5), and E39 (525i, 528i).
- 6 Series (1977–1989). E24 (630CSi, 633CSi, 635CSi, M6).
- 7 Series (1978–2001). E23 (733i, 735i), E32 (750iL), and E38 (740i, 740iL, 750iL).
- 8 Series (1991–1997). E31 (850Ci).
- Vintage Sedans & Coupes (1971–1976). E3 Bavaria (3.0S, 3.0Si) and E9 Coupe (3.0CS).
|
