Dorman 03428 Exhaust Manifold Nut

Durable Brass Exhaust Manifold Nuts for Buick, Cadillac, Chevrolet

The Dorman 03428 exhaust manifold nut is engineered to provide reliable fastening for exhaust components on select Buick, Cadillac, and Chevrolet models. Crafted from heat-hardened brass, this hex nut offers corrosion resistance and strength needed in high-temperature exhaust environments.

• Material: Heat-hardened brass for durability and corrosion resistance
• Thread Direction: Clockwise with fine thread pitch of 1.25
• Hex Size: 10 mm for secure wrench engagement
• Inside Diameter: 6.8 mm with internal thread location
• Locking feature with ball seat type to prevent loosening
• Shouldered end design for precise fit and alignment
• Compatible with metric fastener standards
• Package includes 8 hex nuts

Technical Details of Dorman Exhaust Manifold Nut 03428

This exhaust manifold nut features a fine thread type with a pitch of 1.25, designed to provide a tight and secure fit on exhaust studs. The nut’s height measures 22 mm with a depth of 16 mm, ensuring adequate thread engagement. The brass finish not only enhances corrosion resistance but also withstands the heat generated by exhaust systems. The hexagonal shape with a 10 mm size allows for easy installation and removal using standard tools. The locking mechanism combined with a ball seat type helps maintain a secure connection under vibration and thermal cycling.

Compatible Vehicles and Applications

The Dorman 03428 exhaust manifold nut is compatible with various Buick, Cadillac, and Chevrolet models, including the Cruze, Cruze Limited, ELR, Encore, Sonic, and Trax. It is specifically designed for exhaust hardware fastening, ensuring proper sealing and retention of exhaust manifolds and related components.

• Secures exhaust manifold to prevent leaks and exhaust gas escape
• Replaces worn or damaged nuts to restore exhaust system integrity
• Prevents loosening caused by engine vibration and heat expansion
• Helps maintain proper exhaust manifold alignment and sealing
• Supports exhaust system repairs and maintenance

Installation Notes and Tips

When installing the Dorman 03428 exhaust manifold nut, ensure threads on both the stud and nut are clean and free of debris. Use a torque wrench to tighten the nut to the manufacturer’s specified torque to avoid over-tightening or thread damage. The clockwise thread direction and fine thread pitch require careful alignment during installation. Since the nut does not include an attached washer, verify that the mating surface is clean and flat for optimal sealing. Replacement in sets of eight is recommended to maintain uniform fastening across the exhaust manifold.

Quality Assurance and Warranty

Dorman exhaust manifold nuts are manufactured to meet or exceed OEM specifications for fit, form, and function. The heat-hardened brass construction ensures durability in demanding exhaust environments. While this product is exempt from FQA compliance, it undergoes rigorous quality control to ensure consistent performance. Warranty coverage details can be obtained from the product documentation or manufacturer.