SKU: 204-3902 | UPC: 672036036270
ARP Head Stud Kit with Tool – Volkswagen Golf / Jetta 1.8L Turbo 20-Valve
The ARP Head Stud Kit with Tool is a premium high-strength fastener upgrade for the Volkswagen Golf and Jetta equipped with the 1.8L Turbo 20-valve engine. Manufactured from ARP’s proprietary 8740 chromoly steel and heat-treated to 200,000+ psi tensile strength, these studs provide significantly greater clamping force and reliability than factory head bolts. This is especially critical for boosted applications where cylinder pressures are high.
The kit includes precision-machined 12-point nuts and parallel-ground washers for accurate torque application and even load distribution. A custom ARP installation tool is also included to simplify the process and ensure proper alignment during cylinder head installation. Ideal for stock rebuilds, performance builds, or any 1.8T engine where maximum head gasket sealing and long-term durability are required.
Key Features
- High-Strength 8740 Chromoly Steel – Heat-treated for superior tensile strength and fatigue resistance
- 200,000+ PSI Rating – Dramatically stronger than factory head bolts
- Precise Clamping Force – Maintains head gasket seal under high boost and cylinder pressure
- Includes Installation Tool – Makes cylinder head installation faster and more accurate
- 12-Point Nuts & Washers – Parallel-ground for even load distribution and easier torquing
| Spec | Detail |
|---|---|
| Part Number | 204-3902 |
| Brand | ARP |
| Type | Head Stud Kit with Tool |
| Compatibility | Volkswagen Golf / Jetta 1.8L Turbo 20-Valve |
| Material | 8740 Chromoly Steel |
| Tensile Strength | 200,000+ PSI |
| Country of Origin | United States |
| Warranty | ARP Limited Warranty |
Whats Included
- Complete set of ARP Head Studs
- 12-Point Nuts and Parallel-Ground Washers
- ARP Installation Tool
- Installation instructions and torque specifications
Product Notes
- Designed specifically for the Volkswagen 1.8L Turbo 20-valve engine
- Ideal upgrade for stock rebuilds or high-boost performance builds
- Professional installation with proper torque sequence and stretch measurement recommended
Installation Notes
- Requires cylinder head removal for installation
- Use the included ARP tool for accurate stud alignment
- Follow ARP torque specifications and stretch method for best results
- Estimated time: Varies by engine – typically performed during head gasket service
Why Choose ARP Head Stud Kits?
- Industry leader in high-performance fasteners with unmatched quality and strength
- Used by professional engine builders and top racing teams worldwide
- Manufactured in the USA with rigorous quality control standards
Frequently Asked Questions
- Q: Does this kit fit my 1.8T Volkswagen Golf or Jetta?
A: Yes, it is designed specifically for the 1.8L Turbo 20-valve engine found in Golf and Jetta models. - Q: Why upgrade to ARP head studs?
A: Factory head bolts can stretch or fail under boost; ARP studs provide much higher clamping force and reliability. - Q: Is the installation tool included?
A: Yes, the kit includes the ARP installation tool to simplify the process.
Shipping & Handling
- Method: Ground UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Secure ARP retail packaging
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