BMW Copper Lock Nut febi bilstein 18307620549

The BMW Copper Lock Nut by febi bilstein, manufacturer part number 03687, is a premium-quality aftermarket component designed for secure exhaust assembly. Engineered specifically for a wide range of classic and modern BMW models, this 8 mm copper lock nut delivers reliable fastening where drivetrain integrity is critical.

Key Features:

• Manufacturer: febi bilstein
• Aftermarket part; not OEM
• Designed for exhaust applications
• OE reference number: 18 30 7 620 549 / 18307620549

Verified BMW Fitments Include:

• 1600 (1967–1971)
• 1602 (1967–1971)
• 2002, 2002tii (1967–1976)
• 2500, 2800, 2800CS, 3.0CS, 3.0S, 3.0Si (1968–1976)
• 318i, 318is (1984–1992)
• 320i, 325, 325e, 325es, 325i, 325is, 325iX (1977–1993)
• 525i, 528e, 528i, 530i, 533i, 535i, 535is, 540i (1975–1995)
• 630CSi, 633CSi, 635CSi (1977–1989)
• 733i, 735i, 735iL, 740i, 740iL, 750iL (1978–1994)
• 840Ci, 850Ci, 850CSi (1993–1997)

Depend on the trusted quality of febi bilstein for your BMW exhaust assembly needs. Always verify compatibility with your specific model and year for optimal fitment.