Dorman 03412B Exhaust Manifold Hardware Kit - Left or Right

Exhaust Manifold Hardware for OE-Style Repair

Dorman 03412B is an exhaust manifold hardware kit built to match the original fastener style used to secure the exhaust manifold to the engine on specified vehicles. It uses quality metal construction and Grade 8 bolt strength for dependable service on repair jobs that need a direct-fit replacement.

Compatible With Chevrolet Express 1500, Express 2500, Express 3500, Tahoe, C1500, K1500, and related GMC and Cadillac applications across 1987-2002 model years, this kit supports left- and right-side manifold service where listed. The Dorman 03412B part number is also a direct reference for buyers searching OE-style exhaust manifold hardware.

Key Features

• Exhaust manifold hardware kit for manifold-to-engine fastening
• OE-style replacement for specified Chevrolet, GMC, and Cadillac vehicles
• Grade 8 bolt grade for added fastening strength
• Metal construction for standard replacement service
• 3/8-16 coarse thread size with 2.25 in. stud thread length
• Fits left and right positions where listed in the application data
• This part cross-references 9442012 for the same application

Detailed Description

Dorman 03412B is engineered as a standard replacement exhaust manifold hardware kit for vehicles that require the original-style fasteners at the exhaust manifold mounting point. The hardware is specified with a 3/8-16 thread size, coarse stud end thread type, and Grade 8 bolt grade, helping restore secure manifold attachment during exhaust repair or replacement work. The Dorman 03412B designation is useful when matching the correct exhaust manifold hardware for Chevrolet Express, GMC Savana, Tahoe, and other GM truck and van platforms.

Fits 1996-2002 Chevrolet Express 1500, left or right; Fits 1996-2002 Chevrolet Express 2500, left or right; Fits 1996-2002 Chevrolet Express 3500, left or right; Fits 1996-2002 GMC Savana 1500, left or right; Fits 1996-2002 GMC Savana 2500, left or right; Fits 1996-2002 GMC Savana 3500, left or right; Fits 1999-2000 Cadillac Escalade, left or right; Fits 1995-2000 Chevrolet Tahoe, left or right; Fits 1988-1999 Chevrolet C1500, left or right; Fits 1988-1999 Chevrolet K1500, left or right; Fits 1988-1999 GMC C1500, left or right; Fits 1988-1999 GMC K1500, left or right.

What This Part Helps Address

• Loose or missing exhaust manifold fasteners
• Manifold service after exhaust leak repair
• Replacement of worn original hardware during engine work
• Fastener mismatch on GM truck and van exhaust repairs
• Corrosion-related hardware failure at the manifold mounting point

Installation Notes and Tips

Verify thread size, stud length, and mounting position before installation. Clean the manifold and cylinder head mounting surfaces, inspect the threads for damage, and follow the vehicle service procedure for torque sequence and final tightening. This kit does not include springs, nuts, or washers.

Quality Assurance

Dorman manufactures this hardware as a standard replacement part made from quality materials for reliable performance. It is designed to match the original hardware requirements for the listed applications and support a proper exhaust manifold repair.