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SKU: 201-5401 | UPC: 672036042196
ARP 2007-2015 MINI Cooper S R56/R55/R57 & BMW 1 Series N12/N14/N16/N18 1.6L Main Stud Kit
This ARP main stud kit replaces OEM main bolts on BMW N12/N14/N16/N18 1.6L turbo engines in 2007-2015 MINI Cooper S models and select BMW 1 Series vehicles. The studs deliver consistent clamping force to secure main caps under high boost and RPM. Ideal for rebuilt engines or forced induction setups needing stable block integrity.
Key Features
- ARP2000 alloy steel: 220,000 psi tensile strength handles extreme cylinder pressures in performance applications
- Rolled threads: Increases fatigue resistance and ensures precise torque loading without thread galling
- Complete kit contents: Includes 10 main studs, parallel ground washers, and heavy-duty 12-point nuts for full assembly
- Radius fillet design: Reduces stress concentrations at the stud-to-housing transition for longer service life
- Black oxide coating: Protects against corrosion in oily engine environments
Product Notes
- Confirm engine code N12/N14/N16/N18 matches your vehicle prior to purchase
- Use ARP Ultra-Torque or moly assembly lube on threads and under nut faces
- Packaged in a sturdy box for protection during transit
Installation Notes
- Professional installation recommended.
- Clean main cap and block threads thoroughly before assembly
- Torque studs in sequence to ARP specs: 75 ft-lbs initial plus 110 degree angle with ARP lube
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2010 | MINI | Cooper S | R56 1.6L Turbo N12 |
| 2011-2013 | MINI | Cooper S | R56 LCI 1.6L Turbo N14/N18 |
| 2008-2013 | MINI | Clubman S | R55 1.6L Turbo N14 |
| 2009-2015 | MINI | Cooper S Convertible | R57 1.6L Turbo N12/N14/N18 |
| 2008-2013 | BMW | 1 Series | E81/E82/E87/E88 116i/118i 1.6L N14/N16 |
Why Choose ARP?
- ARP fasteners power wins in NHRA, NASCAR, and Formula Drift racing
- Every kit undergoes rigorous testing for consistent performance
- Precision CNC machining ensures perfect fit in OEM block designs
Frequently Asked Questions
-
Q: Will this kit fit a 2012 MINI Cooper S R56?
A: Yes, it fits 2011-2013 R56 Cooper S models with the N14 1.6L turbocharged engine -
Q: What material and strength rating do the studs have?
A: Constructed from ARP2000 proprietary alloy with a minimum 220,000 psi tensile strength and 155,000 psi yield -
Q: What warranty coverage is provided?
A: ARP provides a limited lifetime warranty against defects in materials and workmanship when installed and maintained properly
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective cardboard box 7 x 5 x 1.5 inches
- Weight: 1.80 lbs
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