Dorman 03423 Exhaust Bolt

Exhaust Bolt for OE-Style Replacement

Dorman 03423 is a steel exhaust bolt built to match the fit and function of the original fastener on specified vehicles. It uses a coarse M10x1.5 thread, 10.9 bolt grade, and zinc plating for dependable service in exhaust hardware applications. This Dorman exhaust bolt is a practical replacement for worn, damaged, or corroded exhaust fasteners on Subaru, Toyota, BMW, and other listed vehicles.

Key Features

• Steel construction for strength in exhaust fastening applications
• M10x1.5 coarse thread for the specified OE-style fit
• 10.9 bolt grade for standard replacement use
• Zinc-plated finish for added corrosion resistance
• Natural finish with yellow color identification
• Integral washer outside diameter: 20.44 mm
• Package contents: 2 bolts and 2 nuts

Detailed Description

Built as a standard replacement, Dorman 03423 is engineered to restore secure exhaust attachment where the original bolt has stretched, seized, or broken. The 1.7-inch length and M10x1.5 thread diameter support a direct-fit repair on listed applications, while the steel 10.9-grade construction helps maintain clamping force under exhaust heat and vibration. This part is a strong choice for exhaust bolt replacement on vehicles such as Subaru WRX STI, Subaru WRX, Subaru Forester, Toyota Corolla, and Toyota Camry when the original hardware needs to be renewed. This part cross-references Monroe Shocks & Struts (e.g., 9151281035) for the same application.

Common Repair Uses

• Replacing rusted or seized exhaust fasteners
• Restoring a secure exhaust connection after bolt breakage
• Repairing exhaust leaks caused by loose hardware
• Renewing worn OE-style exhaust mounting hardware
• Addressing stripped or damaged thread engagement

Installation Notes and Tips

Verify thread size, length, and bolt grade against the original hardware before installation. Clean mating surfaces and inspect the exhaust flange or bracket for damage, corrosion, or distortion that could affect clamp load. For best results, follow the vehicle service procedure and torque specification for the specific application. Compatible vehicle coverage includes 2013-2021 Subaru WRX STI, 2012-2016 Subaru WRX, 2004-2013 Subaru Forester, 2000-2006 Toyota Camry, 2009-2013 Toyota Corolla, and other listed fitments.

Quality Assurance

Dorman designs this exhaust bolt to match original part fit and function on specified vehicles. It is manufactured from quality materials for reliable performance in standard replacement service.