Original BMW M3/M5/M6 & Z3/Z4 & Alpina B7 Exhaust Hex Nut (1991–2010)

BMW designed this Original BMW Exhaust Hex Nut for the factory vehicle assembly on BMW 7 Series & M3/M5/M6 & Z3/Z4 from 1991–2010. It secures the matching threaded fastener at the specified assembly. Applications include Alpina B7, M3, M5, M6, Z3, and Z4. As an Original BMW component, it is produced within BMW’s own vehicle-specific design and testing program.

Technical Details

• Manufacturer: BMW
• Component: Exhaust Hex Nut
• Manufacturer part number: 18-30-1-317-898
• Production range: 1991–2010
• Vehicle applications: BMW 7 Series & M3/M5/M6 & Z3/Z4
• Primary function: secures the matching threaded fastener at the specified assembly
• Listed models: Alpina B7, M3, M5, M6, Z3, and Z4
• Listed submodels: M Coupe and M Roadster

Fitment & Compatibility

The table below lists the supported years and models; compare it with the vehicle before ordering. Confirm the exact installation location, vehicle equipment, and production date. A VIN check can resolve production splits or equipment differences. PMB Performance brings more than 20 years of European-parts experience to that review.