What material are these head bolts made from?

These head bolts are made from ARP's proprietary 8740 chromoly steel. This material is known for its strength and durability, offering better clamping force than standard factory bolts.

Do I need special tools to install these bolts?

The bolts themselves feature a 12-point head, which works with standard sockets. However, this kit does not include any installation tools, so you will need to have your own socket set and torque wrench.

Are these bolts suitable for engines with performance modifications?

Yes, these ARP head bolts are designed for engines running higher boost levels than stock. Their increased strength helps maintain proper cylinder head sealing under demanding conditions.

ARP

ARP Volkswagen/Audi 1.8L DOHC 20V Turbo Head Bolt Kit w/o Tool

Name: ARP Volkswagen/Audi 1.8L DOHC 20V Turbo Head Bolt Kit w/o Tool
Brand: ARP
Price: 164.06 USD
Availability: InStock

$164.06

ARP 1.8L DOHC 20V Turbo Head Bolt Kit for 1997-2006 Audi A4 and 2000-2001 VW Golf. Stronger than stock bolts for boosted engines.

Key Features

Direct fit — verified for 1997-2006 Audi A4, 2000-2006 Audi TT, and 2000-2001 Volkswagen Golf.
12-point fasteners — allows for easier installation with common sockets.
8740 chromoly steel construction — provides stronger clamping force than stock bolts.
Designed for 1.8L DOHC 20V Turbo engines — suitable for boosted applications.
Kit does not include installation tools.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Will this fit your vehicle?

Compatible with 35 vehicles

Need Help?

631-982-0042

Fast Shipping

Nationwide delivery

Secure Checkout

Safe & protected

Since 1957

Family-owned

Product Details

ARP 204-3901 head bolt kit uses 12-point fasteners made from ARP's proprietary 8740 chromoly steel. This kit is designed for the 1.8L DOHC 20V Turbo engine found in select Audi and Volkswagen models. If you're running more boost than stock, these bolts offer a stronger clamping force to keep your cylinder head sealed tight.