Click to zoom in
SKU: 204-5404 | UPC: 672036031558
ARP Audi 5cyl Main Stud Kit 1981-1992 Audi Models
The ARP Audi 5cyl Main Stud Kit upgrades main bearing fasteners on 5-cylinder Audi engines. It fits 1981-1992 models including 5000, 80, 90, 100, 200, Coupe, and Quattro variants. This kit delivers consistent clamping load to maintain bearing alignment during high-rpm operation and boosted power levels.
Key Features
- ARP2000 Alloy Construction: Forged from high-tensile strength steel rated at 220,000 psi for reliable performance under extreme stress.
- Rolled Threads: Increases fatigue resistance by up to 700% over cut threads found in stock hardware.
- Complete Kit Contents: 12 M10x1.5x178mm studs, 10 M10x1.5x195mm studs, 22 hardened washers, 22 steel 12-point nuts.
- Black Oxide Finish: Protects against corrosion and galling during repeated installations.
- Precise Dimensions: Direct replacement for OEM mains with lengths matched to Audi 5cyl block design.
Product Notes
- Use ARP Ultra-Torque assembly lubricant on threads and under nut faces for accurate torque.
- Inspect main caps and block threads prior to installation.
- Packaged in ARP box measuring 12 x 8 x 2 inches.
Installation Notes
- Professional installation recommended.
- Clean and chase block threads with ARP thread chaser tool.
- Torque nuts to 68-75 ft-lbs in sequence using ARP lube. kit includes torque specs.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1984-1985 | Audi | 4000 Quattro | S |
| 1981-1983 | Audi | 5000 | Base |
| 1986-1988 | Audi | 5000 | CS |
| 1985 | Audi | 5000 | CS Turbo |
| 1981-1988 | Audi | 5000 | S |
| 1981-1985 | Audi | 5000 | S Turbo |
| 1986-1988 | Audi | 5000 Quattro | CS |
| 1987-1988 | Audi | 5000 Quattro | S |
| 1991-1992 | Audi | 80 | Base |
| 1988-1992 | Audi | 80 Quattro | Base |
| 1988-1991 | Audi | 90 | Base |
| 1990-1991 | Audi | 90 Quattro | 20v |
| 1988-1989 | Audi | 90 Quattro | Base |
| 1981-1985 | Audi | Coupe | Base |
| 1986-1987 | Audi | Coupe | GT |
| 1990-1991 | Audi | Coupe Quattro | 20v |
| 1983-1985 | Audi | Quattro | Base |
| 1989-1991 | Audi | 100 | Base |
| 1989 | Audi | 100 | E |
| 1989-1991 | Audi | 100 Quattro | Base |
| 1989-1991 | Audi | 200 | Base |
| 1991 | Audi | 200 Quattro | 20v |
| 1991 | Audi | 200 Quattro | 20v Avant |
| 1991 | Audi | 200 Quattro | Avant |
| 1989-1991 | Audi | 200 Quattro | Base |
| 1986-1987 | Audi | 4000 Quattro | CS |
Why Choose ARP?
- ARP fasteners power wins in NHRA, NASCAR, and endurance racing.
- Every part manufactured to exacting standards in Southern California.
- Proven design handles 2x OEM clamping force without failure.
Frequently Asked Questions
-
Q: Will this kit fit 1986 Audi 5000 Quattro CS?
A: Yes, confirmed fit for 1986-1988 Audi 5000 Quattro CS and all listed 5cyl models with matching main cap design. -
Q: What material and finish do the studs have?
A: Made from ARP2000 alloy steel with rolled threads and black oxide coating for strength and rust protection. -
Q: Does ARP provide a warranty or torque instructions?
A: Lifetime warranty against breakage when installed per instructions. full torque specs and lube recommendations included with kit.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: ARP branded box 12 x 8 x 2 inches
- Weight: 2.1 lbs
ARP Head Studs
ARP head stud kits for internal engine builds are stocked at Black Ops Auto Works. Shop ARP head stud and bolt kits, main stud kits, and rod bolt kits engineered for HEMI, Ford Modular and Coyote, GM LS, Subaru EJ, Honda K and B series, VW/Audi turbo four cylinders, Porsche, BMC, and Renault engines, along with the Ultra-Torque assembly lubricant every kit depends on. Every product is filterable by year, make, model, and engine platform so the correct fastener kit ships the first time. Black Ops Auto Works carries 812 ARP Head Studs SKUs across 8740 chromoly and ARP2000 alloy options. What This Collection Covers ARP head studs replace factory head bolts with precision-machined threaded studs that thread into the block and allow the nut to be torqued concentrically on a stationary fastener, producing more even and repeatable clamping force across the entire head gasket surface than a factory head bolt design. This collection focuses on the internal engine fasteners that hold the ...
View ARP Head Studs Products
Head Components
Cylinder head components and engine internals for performance builds and OE service are stocked at Black Ops Auto Works. Shop complete cylinder heads, head gaskets, head stud and bolt kits, rocker arms, lifters, camshaft and lifter kits, rotating assemblies, and main stud and bolt kits for LS, LT, HEMI 5.7/6.1/6.4, Coyote, Cummins, Powerstroke, VW/Audi turbo, Subaru, Nissan, and import platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 972 Head Components SKUs across component type, engine platform, and bore or gasket specification. What This Collection Covers Head Components groups together the parts that live at and around the cylinder head, the area of the engine most affected by heat, combustion pressure, and clamping load. This includes complete heads, head gaskets, head studs and bolts, rocker arms, lifters, camshaft and lifter kits, main stud and bolt kits, and ro...
View Head Components Products
Main Stud & Bolt Kits
Main stud kits, main bolt kits and engine bottom end fasteners for performance engine builds are stocked at Black Ops Auto Works. Shop ARP main studs, main cap bolts, block bolts, main cap hardware, fastener lubricant and build hardware for LS, Coyote, Hemi, K20, K24, 2JZ, RB, EJ, SBC, BBC, 4B11 and modular Ford engine combinations. Every product is filterable by engine family, year, make, model and application so the correct main cap configuration, thread pitch, fastener length and oil pan clearance can be confirmed before ordering. Black Ops Auto Works carries 84 main stud and bolt kit SKUs for street, boosted, stroker and competition engine builds. What This Main Stud & Bolt Kits Collection Covers Main studs and bolts secure the main caps that support the crankshaft. They are critical engine fasteners because cap movement or inconsistent clamp load can affect bearing clearance, crankshaft alignment and durability under high cylinder pressure or rpm. Stud Kits and Main Bol...
View Main Stud & Bolt Kits Products