ARP 7/16 ID 13/16 OD Black Washer

The ARP 7/16 ID 13/16 OD Black Washer is a premium high-strength washer designed for use with ARP fasteners in automotive, motorsport, and high-performance applications. Manufactured from hardened alloy steel and finished with a black oxide coating, this washer ensures even load distribution, prevents bolt or nut pull-through, and protects critical surfaces under high torque conditions.

Ideal for use with head studs, rod bolts, flywheel bolts, and other ARP fasteners, these washers help maintain consistent clamping force and improve the durability and reliability of your engine assembly.

Features

• Inner Diameter (ID): 7/16″
• Outer Diameter (OD): 13/16″
• Material: Hardened alloy steel for high strength
• Finish: Black oxide for corrosion resistance
• Designed for use with ARP high-performance fasteners
• Precision machined for consistent fit and load distribution

Benefits

• Distributes clamping force evenly to prevent damage to components
• Increases reliability of high-torque assemblies
• Works with a wide range of ARP bolts and studs
• Corrosion-resistant black oxide finish extends service life
• Ideal for engine rebuilds, racing, and performance applications

Typical Applications

• Head stud kits
• Rod bolt kits
• Flywheel bolt kits
• Turbocharger or high-performance engine assemblies

Tip: Always use washers recommended by the fastener manufacturer to ensure proper torque and clamping.