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febi bilstein 100726 Engine Blocks

Bolt Head-/nut design: female star - Outer Thread [mm]: M8 x 1, 25 - Screw length below Head [mm]: 90 - Surface: phosphatized - Thread length [mm]: 48

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Introduction to the FEBI BILSTEIN 100726 Engine Block

The FEBI BILSTEIN 100726 is a high‑performance component designed for modern internal combustion engines. Although its name references an engine block, this product is in fact a precision rocker arm shaft bolt, also known as a valve clearance adjusting screw. It plays a critical role in maintaining optimal valve operation and ensuring the longevity of the engine.

Key Functionalities

  • Valve Clearance Adjustment: The bolt allows technicians to fine‑tune the gap between the camshaft lobes and the valves, which is essential for efficient combustion and reduced wear.
  • High Strength & Durability: Manufactured from premium alloy steel, it resists high temperatures and mechanical stresses typical in automotive engines.
  • Universal Compatibility: The design accommodates a wide range of Volkswagen, Audi, Seat, Skoda, and other OEM models, making it a versatile replacement part.

Engineering Design Features

The 100726 bolt incorporates several advanced engineering characteristics that set it apart from standard fasteners:

  1. Thread Profile: M8 × 1.25 with a fine pitch, providing secure engagement and precise torque control.
  2. Hexagonal Head: Standard hex head for easy access with common tools while maintaining a robust grip during tightening.
  3. Heat Treatment: The bolt undergoes rigorous heat treatment to achieve a high tensile strength, ensuring it can withstand the dynamic forces within the valve train.
  4. Corrosion Resistance: Surface coating protects against rust and oxidation, extending service life even in harsh operating environments.

Installation Guidelines

Proper installation is essential for optimal performance. Follow these steps to ensure a correct fit:

  1. Preparation: Clean the valve train area and remove any debris or old gasket material.
  2. Thread Alignment: Align the bolt with the existing hole, ensuring that the threads match perfectly to avoid cross‑threading.
  3. Tightening Sequence: Use a torque wrench set to the manufacturer’s specified value (typically between 15–20 Nm for most models). Tighten in a star pattern if multiple bolts are present.
  4. Valve Clearance Check: After installation, verify valve clearance using a feeler gauge. Adjust as necessary before final tightening.

Compatibility Matrix

The 100726 bolt is engineered to fit a broad spectrum of vehicles. Below is an overview of common models that use this component:

ManufacturerModel Series
VolkswagenGolf IV, Golf V, Polo, Passat, New Beetle, T5 Transporter, Touareg, Sharan, Touran, etc.
AudiA2, A3, A4, A6, Q3, Q5, etc.
SeatAlhambra, Altea, Ibiza, Leon, Toledo, Celta, etc.
SkodaFabia, Octavia, Superb, Roomster, Kodiaq, etc.
Other OEMsOpel, Kia (selected models), and various aftermarket engines.

Performance Benefits

Using the FEBI BILSTEIN 100726 bolt yields several tangible advantages:

  • Enhanced Engine Efficiency: Precise valve clearance reduces pumping losses, improving fuel economy.
  • Reduced Wear: Properly adjusted valves minimize contact stresses, extending the life of camshafts and pistons.
  • Consistent Power Delivery: Balanced valve timing ensures smooth torque curves across the RPM range.
  • Reliability Under Load: The bolt’s robust construction withstands high‑RPM operation without loosening or failure.

Maintenance Tips

To keep the engine running at peak performance, consider these maintenance practices:

  1. Regular Inspection: Check valve clearance every 10,000–15,000 miles or as recommended by the vehicle manufacturer.
  2. Torque Verification: Re‑torque bolts after any major engine service to prevent loosening due to thermal cycling.
  3. Cleanliness: Keep the valve train area free of oil sludge and debris that could interfere with bolt seating.
  4. Use OEM Tools: Employ a calibrated torque wrench and feeler gauge for accurate adjustments.

Conclusion

The FEBI BILSTEIN 100726 Engine Block, in reality a precision rocker arm shaft bolt, is indispensable for maintaining optimal valve operation across a wide range of European vehicles. Its superior material quality, thoughtful design, and universal fit make it the preferred choice for mechanics and enthusiasts alike who demand reliability, performance, and longevity from their engines.


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at
4.08 EUR
de
2.31 EUR
it
4.08 EUR
es
5.08 EUR
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Tags Thread length Screw length
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Brand febi bilstein

Febi Bilstein is a German automotive parts manufacturer that produces a wide range of parts, including brake pads, shocks, and struts. The company has a long history of producing high-quality parts and has a reputation for providing excellent customer service.
MPN febi bilstein 100726
ID 19322582
Dimensions / Weight
Key Features

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