Febi 21586 Cylinder Head Bolt 11x133mm

The Febi 21586 is a precision-engineered cylinder head bolt designed to meet OEM specifications for Audi and Volkswagen engines. Measuring 11mm x 133mm, this critical fastener secures the cylinder head to the engine block, maintaining the proper seal and compression necessary for optimal engine performance.

Key Features:

• OE-matching quality construction for reliable performance
• Dimensions: 11mm diameter x 133mm length
• Replaces OEM part number 078-103-385-K
• Manufactured to withstand extreme temperatures and pressures
• Single bolt (sold individually)

Febi Bilstein cylinder head bolts are intensively tested to ensure they meet strict quality standards for dimensional accuracy, material strength, and durability. When performing cylinder head service or replacement, using proper OE-quality fasteners is essential for maintaining the integrity of the engine's combustion chamber seal. This bolt is designed for one-time use and should not be reused after removal.

Cross-Reference Numbers: 078103385K, 078-103-385-K, 078.103.385.K, 4027816215868