ARP M8 ID .575 OD Black Washers (10/pkg)

This ARP performance fastener, stud, bolt, tool, or assembly is the M8 ID .575 OD Black Washers (10/pkg). Confirm the exact engine or vehicle application, thread size, length, material, strength series, included quantity, installation lubricant, tightening sequence, and current ARP torque specification before ordering.

Key Features

• Precise Dimensions: M8 inner diameter and.575 inch outer diameter fit ARP stud kits perfectly for accurate seating and load transfer.
• High-Strength Steel: ARP proprietary alloy withstands 200,000 PSI tensile loads without deformation.
• Black Oxide Finish: Resists corrosion and galling in high-heat high-vibration engine environments.
• Matched Set of 10: Provides complete quantity for single-cylinder head or main girdle applications.
• Yes these match ARP kits 204-1606 and 208-4301 for all B16 B18 variants including Type R providing exact ID OD for proper washer stack height.
• Forged from ARP 8740 chrome moly steel with black oxide coating for corrosion resistance and reduced friction during assembly.

Fitment

Specifications

What’s Included

One new ARP hardware kits – other in the exact configuration and quantity identified by this listing. Brackets, wiring, air lines, fittings, switches, fasteners, fitting kits, fluids, covers, and accessories are included only when expressly stated for this exact part.

About ARP

Automotive Racing Products manufactures high-performance studs, bolts, nuts, washers, wheel hardware, assembly tools, and installation lubricants for engine, drivetrain, chassis, and racing applications. Thread dimensions, material, preload method, lubricant, torque, and included quantity remain exact-part specific.

Important Disclosures

• California Proposition 65 warning applies. Review the current manufacturer warning before handling or installation.

Related Parts

• Shop all ARP products
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• ARP 01-10 6.6L GM Duramax Diesel Flexplate Bolt Kit

Frequently Asked Questions

How do I confirm the M8 ID .575 OD Black Washers (10/pkg) fits my application?
Match the exact engine family or vehicle, component location, thread diameter and pitch, under-head length, material, strength series, and every current ARP application note.

Can I reuse the factory torque value with this ARP hardware?
Not automatically. Use ARP’s current instructions for the exact part, material, lubricant, tightening sequence, and preload method. Factory torque values may be based on different hardware and friction.

What is included with this ARP kit?
Only the studs, bolts, nuts, washers, lubricant, and tools expressly listed for this exact part number are included. Verify the required quantity before disassembly.

Installation Instructions

1. Confirm ARP part number 200-8643, the complete application, and every required supporting component before beginning work.
2. Clean and inspect all mating threads and components, then verify thread engagement, length, washers, nuts, lubricant, and required preparation before assembly.
3. Follow ARP’s current tightening sequence, lubricant instructions, torque or stretch method, and any retorque procedure for this exact part.
4. Verify clearance, preload, fastener seating, and normal component operation before returning the vehicle or engine to service.