Unbeatable Strength. Unrivaled Durability. Unzerstörbar.

When it comes to your Audi’s performance, settling for anything less than perfection is simply not an option. Introducing the Unzerstörbar Crank Pulley Bolts, specifically engineered for the Audi EA837 engine. Crafted from high-quality steel, these bolts offer a level of strength and reliability that your stock bolts simply can’t match. With our Unzerstörbar (indestructible) guarantee, you’ll experience superior durability and a rock-solid fit, mile after mile.

Key Features:

• Grade 14.9 Industrial Toughness: Designed from ultra-grade high-strength steel, these bolts are significantly stronger than traditional steel, ensuring they withstand the most demanding conditions without fail.
• Tested to Specification: For a bolt to be rated as a 14.9 grade bolt, they must meet a minimum tensile strength of 1440MPa (208854.3 PSI).  These bolts have been tested and lab verified to 1520 MPA (220457.4 PSI), which is directly comparable to ARP hardware.
• Precision Engineered: Tailored specifically for the Audi EA837 engine, these bolts offer a precise fit and exceptional performance, eliminating the risk of breakage or failure under high stress. These bolts feature a 10mm socket head that has been machined to fit within the tolerances of the crank pulley.
• Corrosion-Resistant: Thanks to the black oxide's resistance to rust and corrosion, these bolts remain rock-solid, even in the harshest driving conditions—no more worrying about oxidation and wear.
• Unzerstörbar Durability: These bolts are made to endure the heat, torque, and vibration your Audi can throw at them. Whether you're on the autobahn or carving through twisty mountain roads, they’re built to last.
• Easy Installation: With a direct fit and straightforward installation process, upgrading your Audi's crank pulley bolts to the Unzerstörbar Crank Bolts is quick and hassle-free.
• Vorsprung Logo

Why Choose Unzerstörbar Crank Bolts?

• Unmatched Strength: Unlike weaker OEM bolts that are prone to snapping under pressure, the Unzerstörbar Crank Bolts will hold up, ensuring your engine runs smoothly without the worry of sudden failure.
• Built for Performance: Whether you're racing, track days, or just pushing your Audi to the limit, these bolts are ready for action.
• Perfect Fit for Audi EA837: Designed specifically for this engine, every bolt is crafted with precision for an exact fit—no modifications required.

Upgrade your Audi EA837 with Unzerstörbar Crank Bolts and experience a new level of performance, durability, and peace of mind. With these bolts under the hood, you’re ready for whatever your driving adventures throw at you.

Get ready to go further, faster, and stronger—because with Unzerstörbar, your engine is unstoppable.

Torque: 40 Nm plus blue thread locker (included).

25MM - OEM Length

30MM - Fluidampr and CTS Turbo

35mm - JHM

SKU: VA-UCPB-025, VA-UCB-030

Part Number Interchange:

• N 910 059 02

What’s Included:

• 8 Bolts (M8)