Elring 804.250 Engine Cylinder Head Bolt Set

Reliable Engine Cylinder Head Bolt Set for Audi Models

The Elring 804.250 engine cylinder head bolt set is designed to meet the precise requirements of various Audi vehicles. Engineered for durability and exact fitment, this set ensures secure fastening of the cylinder head, maintaining engine integrity and performance.

• Set includes 8 bolts with female star bolt head design
• Thread size: M 11x1.5x137.5 for accurate threading
• Spanner size: X - m 10 for proper torque application
• Compatible with multiple Audi models including 90, 90 Quattro, 100, 100 Quattro, A4, A4 Quattro, A6, A6 Quattro, and Cabriolet

Technical Details and Specifications

The Elring 804.250 cylinder head bolt set features a female star bolt head design, which allows for secure tightening with the appropriate tool, reducing the risk of stripping or damage during installation. Each bolt is sized with an M 11x1.5 thread and a length of 137.5 mm, ensuring a precise fit for the cylinder head assembly. The spanner size required is X - m 10, facilitating correct torque application to maintain engine sealing and performance. This set includes 8 bolts, matching the original equipment specifications for the compatible Audi models.

Compatible Audi Models and Applications

• Audi 90 and 90 Quattro
• Audi 100 and 100 Quattro
• Audi A4 and A4 Quattro
• Audi A6 and A6 Quattro
• Audi Cabriolet

This bolt set is specifically designed for use in the cylinder head assembly of these Audi models, ensuring proper clamping force and engine reliability.

Common Issues Addressed by Cylinder Head Bolt Replacement

• Preventing cylinder head gasket leaks due to bolt fatigue or stretching
• Maintaining correct cylinder head torque to avoid engine misfires
• Ensuring engine compression integrity for optimal performance
• Replacing damaged or corroded bolts during engine rebuilds or repairs
• Reducing risk of engine overheating caused by improper head sealing

Installation Notes and Tips

When installing the Elring 804.250 cylinder head bolt set, use the specified spanner size X - m 10 to apply torque evenly and according to manufacturer specifications. It is important to follow the correct tightening sequence and torque values for the specific Audi model to avoid warping the cylinder head. Inspect bolts for any signs of damage before installation and replace all bolts as a set to ensure uniform clamping force.

Quality Assurance and Warranty

Elring is known for manufacturing engine components that meet strict quality standards. The 804.250 cylinder head bolt set is produced with high-grade materials to withstand engine stresses and thermal cycles. While specific warranty details are not provided, Elring products typically comply with OEM quality requirements, offering reliability for professional repairs and maintenance.