Dorman 03137 Exhaust Manifold Bolt and Spring - Front

Exhaust Manifold Bolt and Spring Kit

Dorman 03137 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 secure seal while allowing the needed movement between the exhaust pipe and muffler.

For front-position applications on vehicles such as the Chevrolet Caprice, Pontiac Firebird, and Oldsmobile Cutlass Supreme, this hardware supports a proper exhaust connection without unnecessary modification. The Dorman 03137 part number is also referenced by 031374 and 411405 for the same application.

Key Features

• Direct replacement for worn exhaust manifold bolt and spring hardware
• Specific fit for selected front exhaust applications
• Metal spring construction
• Standard replacement grade
• Helps maintain exhaust sealing while allowing joint movement
• Designed for rusted, damaged, or missing exhaust fastener service

Detailed Description

This exhaust manifold bolt and spring kit is engineered for vehicles that require a specific-fit exhaust fastener solution. The shoulder bolt and metal spring are used to secure the exhaust connection while accommodating movement between the exhaust pipe and muffler, which helps reduce the chance of exhaust leaks at the joint. It is a practical replacement for service work on older GM platforms, including Chevrolet Caprice, Pontiac Firebird, and Oldsmobile Cutlass Supreme applications. If you are searching for Dorman 03137 for a front exhaust repair, this part provides a straightforward OE-style service option.

Common Problems It Can Address

• Broken or rusted exhaust manifold bolt hardware
• Exhaust leaks at the pipe-to-muffler connection
• Loose or unstable front exhaust mounting points
• Noise caused by failing exhaust fasteners
• Service issues from damaged original spring hardware

Installation Notes and Tips

Verify year, make, model, and front-position fitment before installation. Clean the mating surfaces and inspect the surrounding exhaust components for corrosion, thread damage, or warped flanges before installing the new hardware. Because this is a specific-fit exhaust fastener, confirm the application against the vehicle listing for the exact front exhaust location.

Quality Assurance

Dorman manufactures this part as a standard replacement exhaust hardware solution for direct-fit service. The design focuses on restoring proper fastening and movement at the exhaust joint for the listed applications.