What makes these ARP rod bolts stronger than stock?

ARP uses 8740 chrome moly steel for these bolts, which has a higher tensile strength than the material typically used for stock bolts. They are also heat-treated and tempered to ensure they can handle increased stress.

Do I need to buy anything else to install these rod bolts?

This kit includes the rod bolts, the necessary nuts, and a tube of ARP Ultra-Torque Fastener Lubricant. You will need to refer to the manufacturer's service manual for specific installation procedures and torque specifications.

Are these bolts suitable for a stock engine?

While these bolts are stronger than stock, they are most beneficial in engines that have been modified for higher performance or are regularly operated at higher RPMs. For a stock, daily-driven vehicle, stock bolts may be sufficient unless they show signs of wear.

ARP

ARP Porsche 986/987/996/997 M9 Rod Bolt Kit

Name: ARP Porsche 986/987/996/997 M9 Rod Bolt Kit
Brand: ARP
Price: 192.87 USD
Availability: InStock

$192.87

ARP Porsche 986/987/996/997 M9 Rod Bolt Kit for 1997-2011 Porsche 911, Boxster, and Cayman. Stronger than stock bolts for high-performance engines.

Key Features

Direct fit — verified for 1997-2011 Porsche 911, 1997-2011 Porsche Boxster, and 2006-2010 Porsche Cayman.
Stronger than stock — made from ARP's 8740 chrome moly steel with a tensile strength of 200,000 psi.
Improved reliability — heat-treated and tempered for consistent performance under stress.
Includes necessary hardware — comes with the required nuts and lube.
Engineered for performance — suitable for modified or high-RPM engines.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Fits these vehicles

Porsche 911 1997-2011
Porsche Boxster 1997-2011
Porsche Cayman 2006-2010

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Product Details

ARP makes this rod bolt kit for the Porsche M9 engine found in 1997-2011 Porsche 911, Boxster, and Cayman models. These bolts are a stronger replacement for your stock connecting rod bolts, which is important if you're building a higher-performance engine or if your original bolts are worn.

ARP uses high-strength 8740 chrome moly steel for these bolts. They are heat-treated and then tempered to achieve a tensile strength of 200,000 psi. This makes them well-suited for engines that see higher RPMs or increased cylinder pressures.