ARP Flywheel Bolts
2005–2010 Scion tC / 2008–2015 Scion xB (xB2) 2AZ-FE Engine
103-2801
Overview:
The ARP Flywheel Bolts Kit is engineered specifically for the 2005–2010 Scion tC and 2008–2015 Scion xB (xB2) models equipped with the 2AZ-FE engine and manual transmission. These bolts are critical components that secure the flywheel or flexplate to the crankshaft, ensuring reliable power transfer and drivetrain integrity. Designed for both street enthusiasts and racers, ARP flywheel bolts provide enhanced strength and durability over OEM hardware, reducing the risk of bolt failure under high stress conditions.
Whether you are upgrading your clutch system, performing engine maintenance, or building a performance-oriented vehicle, these ARP bolts offer peace of mind with their superior construction and proven reliability.
Key Features:
ARP flywheel bolts are crafted with precision and engineered for high-performance applications. Key features include:
- Manufactured from aerospace-grade alloy steel for exceptional strength
- Heat-treated prior to thread rolling and machining to maximize durability
- Exclusive flat, 12-point head design for improved torque application and reduced rounding
- Larger shank diameter than stock bolts for increased shear strength and better flywheel register
- Available in High Performance series rated at 170,000 psi tensile strength
- Premium Pro Series option with 190,000 psi tensile strength, originally developed for NASCAR competition
- Includes washers and nuts where applicable for complete installation
- Designed specifically for manual transmission applications with 2AZ-FE engines
Construction & Design:
ARP flywheel bolts are forged from aerospace-quality alloy steel, ensuring a superior strength-to-weight ratio compared to standard OEM fasteners. The bolts undergo a rigorous heat treatment process before thread rolling and machining, which enhances their tensile strength and fatigue resistance. The unique 12-point head design allows for better engagement with tools, minimizing the risk of rounding and enabling precise torque application during installation.
The increased shank diameter improves the bolt’s shear strength and enhances the flywheel’s register fitment, which contributes to overall drivetrain stability and longevity. These design elements make ARP flywheel bolts an ideal upgrade for performance and reliability in demanding driving conditions.
Installation & Fitment:
Installation of the ARP Flywheel Bolts Kit is straightforward for anyone familiar with clutch or flywheel service on the specified Scion models. These bolts are direct replacements for the factory hardware and require no modifications to the flywheel or crankshaft. It is essential to use the correct torque specifications and follow ARP’s recommended installation procedures to ensure optimal performance and safety.
Note that this kit is intended for manual transmission applications only and is compatible exclusively with the 2AZ-FE engine found in the Scion tC (2005–2010) and Scion xB (2008–2015, xB2 generation).
What's Included:
- ARP Flywheel Bolts (quantity as required for flywheel/flexplate)
- Washers and nuts where applicable
- Installation instructions and torque specifications
Ideal For:
- Scion tC and xB owners upgrading or maintaining their manual transmission drivetrain
- Performance enthusiasts seeking stronger, more reliable flywheel fasteners
- Racers and track day drivers requiring hardware that withstands high RPM and torque loads
- Technicians and mechanics performing clutch or flywheel replacements on 2AZ-FE equipped Scions
