MAHLE GS33671 Victor Reinz Engine Cylinder Head Bolt Set

The MAHLE GS33671 is a Victor Reinz Engine Cylinder Head Bolt Set engineered to meet or exceed original equipment specifications. As a trusted OEM supplier, Victor Reinz — distributed by MAHLE Aftermarket — designs these fasteners to deliver the precise clamping force required to properly seal the combustion chamber, oil passages, and coolant passages between the cylinder head, head gasket, and engine block.

Key Features:

• OE-Quality Engineering: Meets or exceeds original equipment manufacturer specifications for reliable, leak-free performance
• Premium Alloy Steel Construction: Heat-treated to enhance tensile strength and fatigue resistance, maintaining clamping force throughout the engine's service life
• Corrosion-Resistant Finish: Protects against rust and wear from exposure to engine fluids and extreme operating temperatures
• Precision Thread Geometry: Exact OEM thread dimensions and head sizing ensure a secure, properly torqued installation
• TTY Bolt Replacement: Torque-to-yield (TTY) bolts stretch beyond their elastic limit during installation and cannot be safely reused — this set provides the new fasteners required for a proper head gasket service
• Complete Set: Contains all head bolts necessary to replace one cylinder head
• Secure Packaging: Parts are shrink-wrapped in a tray, allowing visual verification of contents before opening

Victor Reinz cylinder head bolts are the connecting elements between the engine block, cylinder head gasket, and cylinder head, delivering the clamping force necessary to maintain a proper combustion seal even at extreme temperatures and pressures. Using new head bolts during a cylinder head installation — especially on engines equipped with torque-to-yield fasteners — is a critical step to ensure a durable, leak-free repair. The MAHLE GS33671 is the correct replacement choice for a professional-grade engine rebuild or head gasket service.