ARP BMW E46 M3/S54 12pt head stud kit

This ARP performance fastener, stud, bolt, tool, or assembly is the BMW E46 M3/S54 12pt head stud kit for 2001-2006 BMW M3. Confirm the exact engine or vehicle application, thread size, length, material, strength series, included quantity, installation lubricant, tightening sequence, and current ARP torque specification before ordering.

Key Features

• ARP2000 Alloy Studs: High tensile strength over 200,000 psi resists fatigue in performance engines.
• Studs forged from ARP2000 alloy with 220,000 psi tensile strength and 12pt chromoly nuts.
• 12-Point Nuts: Provide secure grip and accurate torque application without rounding.
• Rolled Threads: Increase thread shear strength for consistent clamping and reusability.
• Stud Layout: Matches OEM locations to reduce block distortion and thread wear.
• Extensive dyno testing validates clamp load retention.

Fitment

Specifications

What’s Included

One new ARP head stud & bolt kit in the exact configuration and quantity identified by this listing. Brackets, wiring, air lines, fittings, switches, fasteners, fitting kits, fluids, covers, and accessories are included only when expressly stated for this exact part.

About ARP

Automotive Racing Products manufactures high-performance studs, bolts, nuts, washers, wheel hardware, assembly tools, and installation lubricants for engine, drivetrain, chassis, and racing applications. Thread dimensions, material, preload method, lubricant, torque, and included quantity remain exact-part specific.

Important Disclosures

• California Proposition 65 warning applies. Review the current manufacturer warning before handling or installation.

Related Parts

• Shop all ARP products
• ARP BMW 2.3L (S14) 4cyl Head Stud Kit
• ARP BMW M50 2.5L 6-cylinder 12pt Head Stud Kit
• ARP BMW 2.3L (S14) 22mm UHL Flywheel Bolt Kit (Set of 8)

Frequently Asked Questions

How do I confirm the BMW E46 M3/S54 12pt head stud kit fits my application?
Match the exact engine family or vehicle, component location, thread diameter and pitch, under-head length, material, strength series, and every current ARP application note.

Can I reuse the factory torque value with this ARP hardware?
Not automatically. Use ARP’s current instructions for the exact part, material, lubricant, tightening sequence, and preload method. Factory torque values may be based on different hardware and friction.

What is included with this ARP kit?
Only the studs, bolts, nuts, washers, lubricant, and tools expressly listed for this exact part number are included. Verify the required quantity before disassembly.

Installation Instructions

1. Confirm ARP part number 201-4303, the complete application, and every required supporting component before beginning work.
2. Clean and inspect all mating threads and components, then verify thread engagement, length, washers, nuts, lubricant, and required preparation before assembly.
3. Follow ARP’s current tightening sequence, lubricant instructions, torque or stretch method, and any retorque procedure for this exact part.
4. Verify clearance, preload, fastener seating, and normal component operation before returning the vehicle or engine to service.