ARP Caterpillar C15 12Pt Head Stud Kit

This ARP performance fastener, stud, bolt, tool, or assembly is the Caterpillar C15 12Pt Head Stud Kit. 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

• ARP2000 Alloy Construction: Forged studs rated at 220,000 PSI tensile strength and 135,000 PSI yield strength resist fatigue in high-compression diesel applications.
• Hardened Steel Washers: 24 included washers distribute load evenly to prevent head gasket distortion.
• Complete Kit Contents: Includes 12 studs (1/2″-13 x 10.750″), 12 nuts, and 24 washers for one cylinder head.
• Heat-treated ARP2000 alloy steel with 220,000 PSI tensile strength for superior load handling over OEM bolts.
• 12-Point Nuts: Provide precise torque application and eliminate socket slippage during installation on C15 cylinder heads.
• Black Oxide Finish: Shields studs from corrosion in harsh engine bay environments.

Fitment

Specifications

What’s Included

One new ARP head stud & bolt kit 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.

Related Parts

• Shop all ARP products
• ARP 01-10 6.6L GM Duramax Diesel Head Stud Kit
• ARP 02-06 Mini Cooper Head Bolt Kit
• ARP 02-06 Mini Cooper S Head Stud Kit

Frequently Asked Questions

How do I confirm the Caterpillar C15 12Pt Head Stud Kit 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 238-4201, 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.