MAHLE GS33904 Engine Cylinder Head Bolt Set

The MAHLE GS33904 is an OE-quality engine cylinder head bolt set engineered to deliver precise clamping force and reliable sealing during cylinder head replacement or rebuild. MAHLE is a globally recognized supplier trusted by original equipment manufacturers and professional technicians alike to meet the demanding standards of modern engine assembly.

This head bolt set contains all the fasteners needed to properly secure one cylinder head. Many modern engines utilize torque-to-yield (TTY) head bolts, which are designed for single use — replacing them with new MAHLE fasteners ensures the correct sealing load is achieved and maintained, reducing the risk of head gasket failure or coolant and oil leaks.

Key Features:

• OE-equivalent or better materials for reliable, long-lasting performance
• Engineered to meet or exceed original equipment specifications
• Delivers consistent clamping force to seal combustion chambers, oil passages, and coolant passages
• Torque-to-yield design (where applicable) — intended for single use as specified by the OEM
• Manufactured by MAHLE, a trusted global OEM supplier
• Packaged to ensure part identification prior to installation

For best results, use the MAHLE GS33904 head bolt set in conjunction with a MAHLE head gasket to ensure a complete, properly sealed cylinder head assembly.