Genuine BMW S54 Head Bolt Set 11127831862

This BMW S54 head bolt set includes 14 genuine Torx cylinder head bolts designed specifically for the S54 3.2L inline-six engine found in the BMW E46 M3, BMW Z3 M Roadster (S54-equipped models), and BMW E85 Z4 M. This is a complete replacement set for securing the cylinder head to the engine block using factory-spec torque-to-yield hardware.

Why Replace S54 Head Bolts?

BMW S54 head bolts are torque-to-yield (TTY), meaning they stretch when properly torqued to specification. Once loosened or removed, they can NOT be reused. Reinstalling used head bolts can result in improper clamping force, leading to head gasket sealing issues, coolant leaks, compression loss, or engine damage.

Any time the cylinder head is removed—whether for head gasket replacement, valve work, or a rebuild—a new set of S54 head bolts is required.

OEM Replacement for Stock Compression Engines

These are Genuine BMW S54 head bolts, manufactured to BMW’s exact specifications for fitment, clamping force, and long-term reliability. They are ideal for:

• Stock compression S54 engines
• Naturally aspirated street builds
• Daily driven E46 M3, M Roadster (S54), and Z4 M models
• Factory-spec engine rebuilds
• NOT SUITABLE FOR PERFORMANCE ENGINES

For supercharged, turbocharged, or modified S54 engines, and for engines that are disassembled frequently, an ARP head stud kit is required for increased clamping strength and reusability.

Genuine BMW Quality

Choosing Genuine BMW parts ensures:

• Exact factory fitment
• Correct torque-to-yield stretch characteristics
• Updated BMW engineering revisions
• Long-term durability and reliability
• Backed by a two-year warranty

Contents

• (14) Genuine BMW S54 Torx cylinder head bolts
• Hardened steel washers sold separately

For customers searching for BMW S54 head bolts, E46 M3 head bolts, Z4 M head bolts, or OEM S54 cylinder head bolt replacement, this complete genuine set ensures proper sealing and reliable engine assembly.

BMW S54 Applications:

BMW 3 Series

2000-2006     E46     M3

BMW Z3 Series

2001-2002     Z3     M

BMW Z4 Series

2006-2008     Z4     M