ARP Audi 5cyl Main Stud Kit

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