Dorman 674-164 Exhaust Manifold

OE-Style Exhaust Manifold Replacement

Dorman 674-164 is a cast iron exhaust manifold built to match the original fit and function on specified vehicles. It includes the gasket, flange, studs, nuts, and heat shield needed for a complete exhaust manifold repair on select Toyota Corolla, Toyota Celica, Geo Prizm, and Chevrolet Nova applications.

• Cast iron construction for durable exhaust service
• Natural finish
• Round port shape
• Heat shield included
• Gasket or seal included
• Mounting hardware included
• Package contents: exhaust manifold, manifold gasket and flange, studs, and nuts

Fitment Details

Compatible with 1988 Chevrolet Nova, wo/California Emissions. Fits 1988-1997 Toyota Corolla, wo/California Emissions. Fits 1990-1993 Toyota Celica, California Emissions. Fits 1996 Toyota Celica, from 3/96. Fits 1997 Toyota Celica. Fits 1989-1992 Geo Prizm. Fits 1993-1995 Geo Prizm, wo/California Emissions. Fits 1996-1997 Geo Prizm.

This part cross-references ATP 101105 for the same application. Dorman 674-164 also cross-references 94856515 for the same application.

What It Helps Repair

• Exhaust leaks at the manifold
• Cracked or warped original manifold housings
• Failed manifold gasket sealing surfaces
• Broken or missing manifold mounting hardware
• Heat-related exhaust noise near the engine

Installation Notes

Verify emissions configuration before ordering, since coverage differs for California and non-California applications. Confirm the manifold port shape, mounting points, and vehicle build date before installation, especially on 1996 Toyota Celica models built from 3/96. Use the included gasket and hardware during assembly and inspect the mating surfaces for damage before tightening.

Quality Assurance

Dorman engineers this exhaust manifold to match the fit and function of the original part on listed vehicles. The cast iron construction, included heat shield, and supplied sealing hardware support a complete repair on the specified applications.