Dorman 03423 Exhaust Bolt

Durable Dorman Exhaust Bolt for BMW, Toyota, Subaru, and More

The Dorman 03423 exhaust bolt is engineered to provide reliable fastening for exhaust systems on a variety of vehicles including BMW 328i, Toyota Camry, and Subaru WRX models. Constructed from steel with a zinc plating finish, this bolt offers corrosion resistance and strength for long-lasting performance.

• Made from high-strength steel with zinc plating for corrosion resistance
• Coarse thread type with M10x1.5 thread diameter for secure fitment
• 1.7 inch length and 20.44 mm integral washer outside diameter
• Grade 10.9 bolt grade ensuring durability under exhaust system conditions
• Includes 2 bolts and 2 nuts for complete fastening needs
• Natural finish with yellow color for easy identification

Technical Details and Compatibility

The Dorman 03423 exhaust bolt features a coarse thread type with an M10x1.5 thread diameter, designed to fit exhaust components requiring a 1.7 inch length bolt. The integral washer outside diameter measures 20.44 mm, providing a stable fastening surface. With a bolt grade of 10.9, this fastener meets the strength requirements for exhaust hardware applications. The zinc plating finish helps resist rust and corrosion, extending the life of the bolt in harsh undercar conditions.

This exhaust bolt is compatible with a wide range of vehicles including BMW models such as the 323Ci, 323i, 328Ci, 328i, and 528i; Toyota models like the Camry, Corolla, Celica, and 4Runner; Subaru models including the WRX, WRX STI, Forester, and Outback; as well as Chevrolet, Geo, Lexus, Pontiac, Scion, and others. The part number 03423 ensures you receive the correct replacement hardware for your exhaust system.

Common Applications and Problem Solving

• Replacement of worn or rusted exhaust bolts on BMW 328i and Toyota Camry exhaust systems
• Securing exhaust flanges and manifolds to prevent leaks and rattling
• Restoring proper exhaust system alignment on Subaru WRX and Lexus ES300
• Addressing hardware failures caused by corrosion or vibration damage
• Ensuring safe and secure exhaust component attachment on Pontiac and Scion models

Installation Notes and Tips

• Verify thread size and length compatibility with your vehicle’s exhaust system before installation
• Use appropriate torque specifications to avoid over-tightening or stripping threads
• Apply anti-seize compound if reinstalling in high-heat areas to facilitate future removal
• Inspect mating surfaces for damage or corrosion prior to installation
• Replace nuts included in the package to ensure secure fastening

Quality Assurance and Warranty

Dorman exhaust bolts are manufactured to meet industry standards for strength and durability. The 03423 part is a standard replacement grade fastener designed to provide reliable service in exhaust system applications. While specific warranty details may vary, Dorman products typically come with a limited warranty against defects in material and workmanship to ensure customer confidence in product quality.