SKU: 300-8327 | UPC: 672036020354
ARP M12 X 1.25 12pt Nut Kit 300-8327 for Honda/Acura B-Series 1988-2001
ARP M12 x 1.25 12-point nut kit provides reliable head stud fastening for Honda and Acura B-Series engines in high-performance applications. It fits cylinder heads on Civic Si Integra GSR and Del Sol VTEC models from 1988 to 2001. These nuts work with ARP head studs to maintain torque under boost and high RPM for consistent sealing.
Key Features
- 12-Point Head Design: Fits thin-wall impact sockets for access in tight engine bays during cylinder head installs
- 8740 Chromoly Steel Construction: Heat-treated to 200000 psi tensile strength for durability under extreme cylinder pressures
- Black Oxide Finish: Provides corrosion resistance in harsh engine environments including oil and coolant exposure
- Precise M12 x 1.25 Threads: Ensures perfect match with ARP B-series head studs for leak-free head gasket sealing
- Kit of 10 Nuts: Complete set for one cylinder head assembly saving time on performance rebuilds
Product Notes
- Use ARP Ultra-Torque assembly lube on threads for accurate torque values
- Torque to ARP specifications using calibrated torque wrench
- Small lightweight package ships via standard ground carrier
Installation Notes
- Professional installation recommended.
- Clean studs thoroughly before nut installation to prevent thread galling
- Compatible with ARP head stud kits 201-4305 and 201-4306
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1990-2001 | Acura | Integra | GS LS RS GSR Type R |
| 1992-1995 | Honda | Civic | Si |
| 1993-1997 | Honda | Del Sol | Si VTEC |
| 1999-2000 | Honda | Civic | Si |
Why Choose ARP?
- ARP fasteners power NHRA Pro Stock and Formula 1 engines worldwide
- Every nut exceeds SAE specs for strength and fatigue resistance
- CNC-machined threads guarantee consistent clamping force
Frequently Asked Questions
- Q: Will this nut kit fit B18C1 GSR engines?
A: Yes fits 1994-2001 Acura Integra GSR B18C1 and B18C5 Type R with ARP head studs 201-4305 - Q: What material are these nuts made from?
A: Forged 8740 chromoly steel heat-treated for 200000 psi tensile strength and black oxide coated - Q: What is the ARP warranty on these nuts?
A: Lifetime warranty against failure when installed and torqued per ARP instructions
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact cardboard box 3 x 3 x 1 inches
- Weight: 0.10 lbs
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