SKU: 301-8318
ARP M12x1.25 8740 Black Oxide 12-pt Nut Kit for Honda S2000 Subaru WRX VW Audi 1.8T Mitsubishi Eclipse
ARP M12x1.25 8740 Black Oxide 12-pt Nut Kit delivers reliable fastening for engine builds in Honda S2000 F20C F22C, Subaru Impreza WRX STI EJ20 EJ25, VW Golf Jetta Beetle Audi A4 1.8T, and Mitsubishi Eclipse Talon 4G63 engines. Forged from 8740 chrome moly steel rated at 180,000 PSI tensile strength, this 10-piece kit secures ARP rod bolts and head studs under high-stress racing conditions. The 12-point design and black oxide finish ensure precise torque application and corrosion resistance for consistent performance.
Key Features
- 8740 Chrome Moly Steel: Provides 180,000 PSI tensile strength to withstand extreme torque and vibration in performance engines.
- Black Oxide Finish: Guards against rust and corrosion for durability in harsh engine bay environments.
- 12-Point Head Design: Enables secure wrench grip to prevent rounding and stripping during installation and maintenance.
- Thick Wall Construction: Boosts rigidity and strength for heavy-duty applications like turbocharged setups.
- M12 x 1.25 Threads: Perfect match for ARP high-performance rod bolts, main studs, and head studs in import engines.
Product Notes
- Confirm thread pitch matches your ARP bolts before installation.
- Apply ARP Ultra-Torque lubricant to achieve accurate clamp load.
- Kit contains 10 nuts suitable for most rod or main stud sets.
Installation Notes
- Professional installation recommended.
- Torque nuts to ARP specifications using a calibrated torque wrench in stages.
- Designed for use with ARP rod bolts, head studs, and main studs only.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2000-2009 | Honda | S2000 | F20C F22C |
| 1999-2007 | Subaru | Impreza | WRX STI EJ20 EJ25 |
| 1999-2006 | Volkswagen | Golf Jetta New Beetle | 1.8T |
| 1997-2005 | Audi | A4 A6 | 1.8T |
| 1989-1999 | Mitsubishi | Eclipse | GS GSX 4G63 |
| 1989-1999 | Eagle | Talon | Tsi 4G63 |
| 1989-1994 | Plymouth | Laser | RS TSi 4G63 |
Why Choose ARP?
- Trusted by racing teams worldwide for critical engine fasteners.
- Manufactured from premium forgings with rigorous quality control.
- Precision CNC machined for exact fit and repeatable performance.
Frequently Asked Questions
- Q: Which engines is this nut kit compatible with?
A: Designed for ARP M12x1.25 bolts in Honda S2000 F-series, Subaru EJ20 EJ25, VW Audi 1.8T, and Mitsubishi Eagle Plymouth 4G63 engines. - Q: What material and strength rating do these nuts have?
A: Made from 8740 chrome moly steel with black oxide coating and 180,000 PSI tensile strength for high-horsepower builds. - Q: What is the recommended installation process?
A: Clean threads, apply ARP lubricant, torque in sequence to specified values, and recheck after heat cycles.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact protective box
- Weight: 0.05 lbs
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