GENUINE BMW CYLINDER HEAD BOLT SET N42, N46, N46N TORX M9/M10 11127578077

Genuine BMW cylinder head bolt set (Torx M9/M10) for 4-cylinder petrol engines (N40, N42, N43, N45, N46, N46N). BMW OEM part number 11127578077.

• Genuine BMW OEM bolt set
• 12-piece set — M9 and M10 Torx bolts
• Must be replaced whenever cylinder head is removed — stretch bolts, single use only
• Critical for correct cylinder head clamping force

Compatible Vehicles (per RealOEM):

• BMW 1 Series — E81, E82, E87, E87 LCI, E88 (2003–2013)
• BMW 3 Series — E90/E91 (2004–2012), E92/E93 (2005–2013)
• BMW 5 Series — E60 LCI, E61 LCI (2006–2010)
• BMW X1 — E84 (2008–2015)
• BMW X3 — E83 LCI (2006–2010)
• BMW Z4 — E85 (2004–2008)

Engine Compatibility: N40, N42, N43, N45, N46, N46N (4-cylinder petrol)

BMW Part Numbers:

• 11 12 7 578 077 (primary)

Cross References: Elring 527.450, REINZ 14-32310-01, BGA BK2338, AJUSA 81044900