ARP 204-5404 Main Stud Kit for 1981-1992 Cylinder Models

Regular price: $143.95
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Sale price: $143.95

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In Stock: 12

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Product Specification:

SKU:ARP204-5404

MPN: 204-5404

UPC: 672036031558

Weight: 2.0 lb

Inventory: 12

Type: Main Stud & Bolt Kits

Vehicle Fitment

1981-1992 Audi 4000/5000/80/90/100/200/Coupe (including Quattro variants, 5-cyl engines)

Features

8740 chrome-moly steel studs for high durability
Heat-treated in-house to ~190,000-200,000 psi tensile strength
Precision J-form threads rolled post-heat treatment
Helps eliminate main cap walk and fretting
Protects engine block threads during rebuilds
Includes hardened parallel-ground washers
Includes high-strength hex nuts
Provides precise torque retention for high-stress engines

Specifications

Main Bolt Style: 2-bolt stud kit
Socket Sizes: 12 mm 12-point for stud, 4 mm Allen for installation
Material: 8740 chrome-moly steel
Tensile Strength: ~190,000-200,000 psi
Finish: Black oxide (per CNC-Motorsports listing)

Included Components

12x studs
12x hardened washers
12x high-strength nuts

Product Description

The ARP 204-5404 Main Stud Kit is a high-performance fastener solution tailored for both classic and modern Audi 5-cylinder engines. It offers superb durability and reliability for legacy applications from 1981 to 1992 - including models like the 4000, 5000, 80, 90, 100, 200, and Coupe (with Quattro variants) - as well as modern turbocharged performance vehicles, specifically the and RS3 equipped with the 2.5L L5 Turbo engines and AWD configuration.

Constructed from robust 8740 chrome-moly steel and heat-treated to around 190,000-200,000 psi tensile strength, this kit delivers precision-engineered J-form threads and includes hardened washers and nuts for superior clamping function. Whether addressing main cap walk in older mechanical builds or maintaining structural integrity in high-output modern turbo engines, the kit ensures consistent torque control and long-term performance across different engine configurations.