ARP main stud kit for the Audi inline-five, replacing the factory main cap bolts with heat-treated studs for consistent clamping load and improved bottom-end strength under boost or high RPM. Studs thread into the block and torque against ARP nuts, giving a more accurate and repeatable clamp than stretch bolts. Kit includes the main studs, nuts, washers, and ARP Ultra-Torque assembly lube.
| Type | Main stud kit |
| Scope | Main studs |
| Included | Studs, nuts, washers, ARP assembly lube |
| Fitment | Audi 5-cylinder (4000/5000/80/90/100/200/Coupe/Quattro, 1981-1992) |
| Part Number | 204-5404 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 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 |
| 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 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
