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ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.
Maintain the integrity of your engine build with the ARP Replacement Nut designed specifically for the 204-4103 stud kit. When working with precision-engineered fasteners, it is essential to use components that meet the exact specifications of your original kit. These 12-point nuts are manufactured to the same rigorous standards as the studs themselves, ensuring optimal clamping force and long-term reliability for your cylinder head assembly.
Using improper hardware can lead to uneven torque, resulting in head gasket failure or stud fatigue. By sourcing original replacement parts, you ensure that your clamping force remains consistent across the entire cylinder head. The 12-point design allows for easier access in tight engine bays where standard hex nuts might be difficult to reach with a socket. Whether you are performing routine maintenance or recovering from a teardown, these nuts provide the peace of mind that your engine is secured with the best hardware in the industry. Don't compromise on your engine's performance or safety by using generic fasteners. Rely on the quality of authentic components to keep your vehicle running at peak performance. Explore our full range of engine hardware and performance upgrades available at GGCRACING.
| Brand | ARP |
|---|---|
| Manufacturer part number | AMN-ITS |
| GGC SKU | ARPAMN-ITS |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 1.3 × 0.5 × 0.5 in |
|---|---|
| Shipping weight | 0.07 lb |
Universal fit — check measurements. Compare the dimensions and specifications on this page with your application before you order.
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