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An Exact-Length Replacement When You Only Need One Stud
This is an individual ARP replacement stud measuring 1.500in overall length (OAL) with a 3/8in broached center section, sold as a single piece rather than a complete kit. It is built for engine builders and fabricators who need to replace one damaged or lost stud from an existing ARP kit, or who are assembling a custom fastener set and need an exact-length component.
Key Features
- Manufactured from ARP 8740 chromoly steel for consistent strength across ARP's standard stud and bolt kits.
- Broached (knurled) center section creates a secure interference fit when pressed into a threaded boss.
- Precise 1.500in overall length for exact replacement without re-measuring or trimming.
- Sold individually so a single damaged stud does not require purchasing an entire replacement kit.
Fitment
Universal component. This is a length and thread-specific replacement stud intended to match an existing ARP kit or custom fastener application rather than a single named vehicle. Confirm thread size, broach diameter, and overall length against your existing ARP kit documentation before ordering.
Specifications
| Detail | Value |
|---|---|
| Brand | ARP |
| Thread Size | 3/8in |
| Overall Length (OAL) | 1.500in |
| Center Section | Broached (knurled) |
| Material | 8740 chromoly steel |
| Sold As | Individual stud |
What's Included
- One ARP 3/8in x 1.500in OAL broached replacement stud
About ARP
ARP (Automotive Racing Products) manufactures premium fasteners for engine builders, from individual replacement studs to complete head, main, and rod stud kits used across street and racing applications.
FAQ
What does OAL mean on this listing?
Overall Length. This stud measures 1.500in from end to end.
What is a broached stud?
A broached stud has a knurled center section that creates an interference fit when pressed into a threaded boss, helping prevent the stud from backing out during nut removal.
Is this sold as a single stud or a full kit?
This is an individual replacement stud, sold one per unit, not a complete kit with washers and nuts.
What material is this stud made from?
ARP 8740 chromoly steel, the same material used across ARP's standard-strength stud and bolt kits.
Will this fit my specific engine?
This is a length and thread-specific universal replacement part rather than a vehicle-specific component. Confirm the exact thread size, broach diameter, and overall length needed against your existing ARP kit before ordering.
Does this include a nut and washer?
No, this listing is for the stud only.
What is this typically used for?
Replacing a single damaged or lost stud from an ARP head, main, or rod stud kit without buying an entire replacement kit.
Can this be used to build a custom fastener set?
Yes, individual studs like this one are commonly used by engine builders assembling custom fastener sets to an exact length and thread specification.
Installation Instructions
- Confirm the thread size, broach diameter, and overall length match the application before installation.
- Clean the threaded boss and remove any old thread-locking compound or debris.
- Apply ARP thread sealant to the broached end per ARP's general installation guidance for the specific kit being serviced.
- Thread the stud into the boss by hand until snug, using a stud installation tool if needed for the broached section.
- Torque the nut or fastener per the torque specification for the specific kit and application being serviced.
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