ARP BMW E46 M3/S54 Main Stud Kit

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