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SKU: 201-5002 | UPC: 672036032647
ARP BMW E46 M3/S54 Main Stud Kit 2001-2006 M3, 2001-2002 Z3 M, 2006-2008 Z4 M
ARP 201-5002 Main Stud Kit secures the main bearings in BMW S54 3.2L engines with ARP2000 alloy studs and 12-point nuts for consistent clamp load under high stress. Designed specifically for 2001-2006 BMW E46 M3, 2001-2002 Z3 M Coupe/Roadster, and 2006-2008 Z4 M Coupe/Roadster, this kit prevents thread wear and maintains torque accuracy during aggressive driving or racing. Built to handle street, track, and drag demands with long-lasting durability.
Key Features
- ARP2000 Alloy Construction: Provides high tensile strength up to 220,000 psi for secure hold in boosted or high-RPM S54 applications
- Stud Design: Minimizes cylinder block thread damage while allowing precise installation and removal compared to bolts
- Precision-Rolled Threads: Ensures maximum thread engagement and repeatable torque values for even load distribution
- Included Hardware: Comes with matched washers, 12-point nuts, and ARP Ultra-Torque lubricant for complete kit readiness
- Versatile Application: Proven performance across daily driving, autocross, and full-race builds on S54-equipped BMWs
Product Notes
- Inspect main cap girdle and block threads for damage before installation to ensure optimal performance
- Torque to ARP specifications after engine break-in and re-check periodically for high-mileage engines
- Packaged in protective ARP box to prevent shipping damage
Installation Notes
- Professional installation recommended.
- Use ARP Ultra-Torque on threads and under nut faces, follow ARP torque sequence starting at 85 ft-lbs in 3 steps
- Compatible with OEM main caps. no machining required for direct replacement
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2006 | BMW | M3 | Base |
| 2001-2002 | BMW | Z3 | M Coupe |
| 2001-2002 | BMW | Z3 | M Roadster |
| 2006-2008 | BMW | Z4 | M Coupe |
| 2006-2008 | BMW | Z4 | M Roadster |
Why Choose ARP?
- Industry leader in racing fasteners used in NHRA, NASCAR, and Formula Drift
- ARP2000 material exceeds OEM strength for extreme power levels over 500hp
- CNC-machined for exact fit and tolerances in BMW S54 engine blocks
Frequently Asked Questions
-
Q: Will this kit fit my 2006 BMW E46 M3 with S54 engine?
A: Yes, ARP 201-5002 is direct fit for all 2001-2006 E46 M3 Base models equipped with the S54 3.2L inline-6. -
Q: What material are the studs made from?
A: Constructed from proprietary ARP2000 chrome moly alloy with rolled threads for 220,000 psi tensile strength and black oxide finish for corrosion resistance. -
Q: Does ARP offer a warranty on this kit?
A: ARP provides a limited lifetime warranty against material and manufacturing defects when installed and torqued per instructions.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: ARP branded box measuring 12 x 8 x 2 inches
- Weight: 2 lbs
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