Dorman 03134 Exhaust Manifold Bolt and Spring - Front

Exhaust Manifold Bolt and Spring Kit

Dorman 03134 is a direct replacement exhaust manifold bolt and spring kit for specific GM applications. It is built to replace rusted or damaged exhaust fasteners and help maintain a tight seal while still allowing movement between the exhaust pipe and muffler.

For vehicles such as the Buick Regal, Pontiac Grand Prix, and Chevrolet Monte Carlo, this hardware supports a proper exhaust connection at the front of the system. The Dorman 03134 part number is a practical choice when original fasteners are worn, seized, or no longer holding the joint securely.

• Direct replacement for specific exhaust manifold bolt and spring applications
• Helps prevent exhaust leaks at the connection point
• Allows movement between the exhaust pipe and muffler
• Standard replacement grade for routine exhaust service
• Bolt grade 8 with metal spring construction
• Specific fit for confirmed vehicle applications

Detailed Product Overview

This exhaust manifold bolt and spring kit is designed around the original hardware layout used on a wide range of rear-wheel-drive GM cars and coupes from 1978-1987. It is a direct-fit replacement for front-position applications on models including the Buick Century, Oldsmobile Cutlass Supreme, Pontiac Firebird, and Chevrolet Caprice. The shoulder bolt and conical spring help maintain clamping force while accommodating normal exhaust movement, which is important for sealing and durability at the manifold connection. This part cross-references 031344 and 25501711 for the same application.

Common Problems It Can Address

• Broken or rusted exhaust manifold fasteners
• Exhaust leaks at the manifold-to-pipe connection
• Loose or weakened exhaust joint retention
• Noise from a leaking front exhaust connection
• Service issues caused by seized original hardware

Installation Notes and Tips

Install on the confirmed front-position application only. Inspect the mating surfaces, threads, and surrounding exhaust components before assembly, and replace any damaged hardware or sealing surfaces as needed. Because exhaust fasteners are exposed to heat and corrosion, cleaning the threads and verifying proper alignment before tightening can help achieve a secure repair. Confirm vehicle fitment by year, make, and model before ordering.

Quality Assurance

Dorman manufactures this part as a standard replacement exhaust hardware solution for specific applications. It is engineered to match the original fit and function required for service on compatible Buick, Oldsmobile, Pontiac, Chevrolet, and Cadillac models listed in the fitment data.