ARP 400-3225 5/16-24 x 3.250 Stainless Steel 12-Point Water Pump Pulley Stud Kit

The ARP 400-3225 is a high-quality stainless steel stud kit designed for water pump pulley and fan spacer applications. This precision-engineered fastener solution provides superior clamping force and corrosion resistance for demanding automotive and racing environments.

Key Specifications:

• Thread size: 5/16-24
• Overall length: 3.250 inches
• 12-point head design for improved grip and reduced rounding
• Includes 2.000-inch fan spacer capability
• Premium stainless steel construction for maximum durability
• Corrosion-resistant finish ideal for high-heat engine bay environments

ARP (Automotive Racing Products) is renowned for manufacturing the highest quality fasteners in the industry. These studs are manufactured from premium stainless steel alloy and heat-treated to exacting standards to ensure consistent strength and reliability. The 12-point head design allows for precise torque application and works with standard 12-point sockets, providing better contact and reducing the risk of fastener damage during installation.

This stud kit is specifically designed for applications requiring water pump pulley mounting with an extended fan spacer, making it ideal for custom cooling system setups, serpentine belt conversions, and engine builds where precise accessory spacing is critical.