Product Details
Overview
ARP Acura B18A1/B1 main stud kidt (ARP Part #208-5404) is a precision-engineered fastener from ARP, the world leader in high-performance fasteners for the automotive industry.
Main cap studs are critical for bottom-end strength in high-performance engines. These ARP studs handle the tremendous loads placed on the crankshaft and main bearings, preventing cap walk and ensuring proper bearing clearances under extreme conditions.
Every ARP fastener is precision CNC-machined from premium raw materials. The manufacturing process includes:
- Cold-forging for superior grain structure
- Precision thread rolling (not cutting) for maximum strength
- Heat treatment to exact specifications
- Magnetic particle inspection for quality assurance
Applications: Ideal for high-performance street engines, racing applications, turbocharged and supercharged builds, and any application where fastener reliability is critical.
Trust ARP - the choice of professional engine builders and motorsport teams worldwide. When engine reliability matters, choose ARP.



