ARP 1.8T Main Bearing Stud Kit – 209-5401

Made in USA – Premium Quality for High-Performance and Racing Engines

The ARP main bearing studs for 1.8T 20V engines are the preferred choice among professional engine builders worldwide. Manufactured from high-strength 8740 chromoly steel alloy with a tensile strength of 190,000 psi, these studs deliver superior durability and consistent clamping force—far exceeding standard fasteners.

Product Features:

• Compatible with all 1.8T 20V engines (see compatibility list below)
• Precisely manufactured, heat-treated, centerless ground, and rolled for uniform strength
• Optimized load distribution and long-lasting reliability
• Stud design allows for easier installation of cylinder heads and gaskets
• Ideal for tuning, turbocharged setups, high-boost, and motorsport applications

Available Option:

• High Boost Version: +79.00€ (dimensions and appearance may vary slightly depending on engine)

Included in the Kit:

• 10x ARP main bearing studs
• 10x ARP 12-point nuts
• 1x ARP Moly Assembly Lube (part no. 204-4103)
• Installation instructions available as a downloadable datasheet

Installation Tips:

1. Thread studs into engine block by hand only
2. Lightly coat nuts with the included assembly lube before installation
3. Tighten nuts in stages according to ARP's torque specifications:
   • Step 1: 40 Nm
   • Step 2: 60 Nm
   • Step 3: 81 Nm

Compatible Vehicles & Engine Codes:

Volkswagen

• Golf IV GTI (AGU, ARZ, AUM, AUQ, AWP)
• Passat B5 (AEB, ATW, AUG)
• Jetta IV GLI (AWP)
• Beetle Turbo S (AWU, AWP)

Audi

• A3 8L (AGU, ARZ, AUM)
• S3 8L (BAM, AMK, APY)
• TT 8N (ATC, AWP, AMU, BAM)
• A4 B5 (AEB, APU)
• A6 C5 (APU, ANB)

SEAT

• Leon 1M (ARX, APP, BAM)
• Ibiza Cupra (AYP, BJX)
• Alhambra (AJH, AWC)

Škoda

• Octavia I (AGU, ARX, AUM, AUQ)
• Superb I (AEB, AWT)

This ARP stud kit is the perfect upgrade for enthusiasts seeking to maximize the performance, strength, and reliability of their 1.8T engine. Designed for high-boost applications, motorsport use, and serious tuning projects, it offers unmatched quality and peace of mind.