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ARP Porsche 3.0L/3.3L Crankcase Thru Bolt Kit

ARP
ARP204-5405
672036035457
Bolts
3 Units In Stock - Ships Next Business Day
$ 1,246.56
$ 1,246.56

SKU: 204-5405   |   UPC: 672036035457


ARP Crankcase Through Bolt Kit – Porsche 3.0L & 3.3L Engines

The ARP Crankcase Through Bolt Kit is a premium high-strength fastener upgrade for Porsche 3.0L and 3.3L air-cooled engines. Engineered from ARP’s proprietary high-strength material, these through bolts provide superior clamping force and reliability compared to factory hardware. They are ideal for stock rebuilds, high-performance builds, or race applications where maximum crankcase integrity is essential.

The kit includes all necessary bolts, washers, and nuts for a complete crankcase assembly, ensuring even load distribution and preventing leaks or failures under high stress. ARP’s precision manufacturing and heat-treated construction make this the preferred choice for enthusiasts and professional builders working on classic 911, 930, and other 3.0L/3.3L Porsche models.

Key Features

  • High-Strength ARP Material – Superior tensile strength and fatigue resistance
  • Complete Crankcase Kit – Includes all through bolts, washers, and nuts for full assembly
  • Precision Manufactured – Exact fit and consistent clamping force
  • Heat-Treated Construction – Maximum durability under high RPM and boost
  • Direct Replacement – Designed for Porsche 3.0L and 3.3L air-cooled engines
Spec Detail
Part Number 204-5405
Brand ARP
Type Crankcase Through Bolt Kit
Compatibility Porsche 3.0L & 3.3L air-cooled engines
Material High-Strength ARP Proprietary Alloy
Country of Origin United States
Warranty ARP Limited Warranty

Whats Included

  • Complete set of crankcase through bolts
  • Corresponding washers and nuts
  • Installation instructions

Product Notes

  • Designed for Porsche 3.0L and 3.3L air-cooled engines (including 911 SC, Carrera 3.2, 930 Turbo, etc.)
  • Provides significantly stronger clamping force than stock hardware
  • Professional engine builder installation recommended with proper torque sequence

Installation Notes

  • Requires full crankcase disassembly for installation
  • Follow ARP torque specifications and sequence for proper assembly
  • Professional engine builder installation is highly recommended

This Part Fits

Year Range Make Model Engine Notes
Various (air-cooled era) Porsche 911 / 930 Turbo / SC / Carrera 3.2 3.0L & 3.3L Crankcase Through Bolt Kit

Why Choose ARP Crankcase Through Bolt Kits?

  • Industry-leading strength and reliability for high-performance engines
  • Precision-manufactured in the USA with ARP’s proprietary materials
  • Proven in professional racing and high-horsepower street builds

Frequently Asked Questions

  • Q: Does this kit fit my 1980 Porsche 911 3.0L?
    A: Yes, compatible with Porsche 3.0L and 3.3L air-cooled engines across the applicable years.
  • Q: Are these bolts stronger than stock?
    A: Yes, ARP through bolts provide significantly higher tensile strength and clamping force.
  • Q: Is professional installation required?
    A: Yes, crankcase assembly requires precise torque procedures and should be performed by an experienced engine builder.

Shipping & Handling

  • Method: Ground UPS or FedEx
  • Availability: In stock – ships same or next business day
  • Packaging: Secure ARP retail packaging

Request For Information

Have questions about ARP Porsche 3.0L/3.3L Crankcase Thru Bolt Kit? Fill out the form below and we'll get back to you by the next business day.
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