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

ARP
ARP204-3901
672036036263
Head Stud & Bolt Kits
8 Units In Stock - Ships Next Business Day
$ 165.38
$ 165.38

SKU: 204-3901 | UPC: 672036036263

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

ARP 204-3901 head stud kit upgrades stock head bolts on VW and Audi 1.8L 20V turbo engines for dependable sealing under boost. Engineered with ARP2000 alloy studs, this kit fits B5 A4, Mk1 TT, and 1.8T Golf/Jetta models from 1997-2006. Stud design and precision threads ensure even clamp load to prevent head gasket failures in tuned applications.

Key Features

  • Genuine ARP Fasteners: ARP2000 material provides high tensile strength up to 220,000 psi for extreme boost and power levels
  • Stud Design: Eliminates thread wear on block, allows accurate torque and easier head removal during service
  • Rolled Threads: Increase fatigue strength by 350% over cut threads for repeatable accuracy and secure hold
  • Matched Hardware: Includes 12-point nuts, hardened parallel washers for direct bolt-on assembly
  • Versatile Use: Handles street daily drivers to 500+ whp track builds with consistent performance

Product Notes

  • MPN 204-3901 from ARP, category Engine Components Head Stud & Bolt Kits
  • Lubricate with ARP Ultra-Torque for precise torque values up to 70 ft-lbs hot
  • Ships in protective box, weight 2.1 lbs, dimensions 12 x 6 x 1.5 inches

Installation Notes

  • Professional installation recommended.
  • Clean cylinder head and block threads thoroughly before install
  • Torque in ARP-specified sequence: 22 ft-lbs initial, +90 degrees, +90 degrees final. recheck after 500 miles

This Part Fits

Year Make Model Submodel
1997-2005 Audi A4 Base
2003-2006 Audi A4 Cabriolet
1999-2005 Audi A4 Quattro Avant
1997-2005 Audi A4 Quattro Base
2000-2006 Audi TT Base
2000-2006 Audi TT Quattro Base
1998-2001 Audi A6 Base
2000-2004 Volkswagen Beetle GLS
2000-2001 Volkswagen Golf GLS
2000-2001 Volkswagen Golf GTI GLS
1999-2005 Volkswagen Jetta GLS
2000-2005 Volkswagen Passat GLS

Why Choose ARP?

  • ARP fasteners power NHRA Top Fuel and Formula 1 engines worldwide
  • Every kit tested for fatigue and tensile strength beyond OEM limits
  • Precision CNC machining ensures perfect fit on 1.8T DOHC heads

Frequently Asked Questions

  • Q: Does this kit fit all 1.8T engines in B5 A4 or MK4 Golf?
    A: Yes, covers AWP/AWD/AWV engine codes in 1997-2006 Audi A4/TT and 1999-2005 VW Golf/Jetta/Beetle/Passat 1.8L turbo models
  • Q: What material are the studs made from?
    A: Forged ARP2000 chrome moly alloy with rolled threads for 200,000+ psi tensile strength and corrosion resistance
  • Q: Is a torque tool required for installation?
    A: No tool included. use ARP Ultra-Torque lube and angle-torque method per included guide for best results

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Secure foam-lined box, 12 x 6 x 1.5 inches
  • Weight: 2.1 lbs

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