Dorman 674-550 Exhaust Manifold - Left

Brand Dorman 674-550
Position Left
Color Natural
Gasket Or Seal Included Yes
Grade Type Regular
Heat Shield Included No
Material Cast Iron
Mounting Hardware Included Yes
Package Contents Exhaust Manifold; 1 Manifold Gasket and 1 Flange; 2 Bolts; 2 Studs; 4 Nuts; 2 Springs
Port Shape Round
Fits Chevrolet, Pontiac, and GMC · 37 vehicles

OE-style replacement. Precision-engineered to match original fit and function.

Cast iron construction. Durable material built for dependable exhaust sealing.

Complete repair kit. Includes gaskets and downpipe hardware for installation.

Cross-references ATP 101148 and 10044869 for the same application. See all 2.

$125.59Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.

Dorman 674-550 Exhaust Manifold

This Dorman exhaust manifold is engineered to match the fit and function of the original part on specified vehicles. Built from cast iron with a natural finish, it is a direct repair option for left-side exhaust service on select Chevrolet and GMC applications, including Chevrolet S10 and Camaro models.

Key Features

  • Cast iron construction for durable exhaust service
  • Natural finish with round port shape
  • Direct-fit replacement for the left side
  • Includes gasket and downpipe hardware for a complete repair
  • Designed to restore proper exhaust routing on specified vehicles
  • Part number 674-550 for easy identification

Detailed Description

The Dorman 674-550 exhaust manifold is built to replace the original manifold on select Chevrolet S10, Camaro, Pontiac Firebird, GMC S15, S10 Blazer, and S15 Jimmy vehicles. Its cast iron design supports long-term exhaust service, while the OE-style fit helps simplify replacement on the left side. This part cross-references ATP 101148 for the same application. For buyers searching for a left exhaust manifold for 1985-1993 Chevrolet Camaro or 1986-1993 Chevrolet S10, part number 674-550 provides a direct repair solution with the necessary sealing and downpipe components included in the package contents.

What It Helps Fix

  • Cracked or warped exhaust manifold housing
  • Exhaust leaks at the manifold-to-cylinder-head sealing surface
  • Broken or missing manifold mounting points
  • Leaking flange connection at the downpipe interface
  • Noisy exhaust operation caused by manifold failure

Installation Notes

Install on the left side only for the listed applications. Verify port shape, mounting points, and flange alignment before assembly. Clean the mating surfaces thoroughly and follow factory torque specifications during installation. The included gasket and downpipe hardware support a complete repair, and the part number 674-550 should be matched to the vehicle application before installation.

Quality Assurance

Dorman manufactures this manifold to match original fit and function on specified vehicles. The cast iron construction and application-specific design support consistent replacement performance for Chevrolet and GMC exhaust repairs.

This part fits 37 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeLitersCylindersPositionNotes
1993ChevroletS10RWD2.8LV6Left
1992ChevroletCamaro3.1LV6Left
1992ChevroletS102.8LV6Left
1992PontiacFirebird3.1LV6Left
1991ChevroletCamaro3.1LV6Left
1991ChevroletS10RWD2.8LV6Left
1991PontiacFirebird3.1LV6Left
1990ChevroletCamaro3.1LV6Left
1990ChevroletS102.8LV6Left
1990GMCS152.8LV6Left
1990PontiacFirebird3.1LV6Left
1989ChevroletCamaro2.8LV6Left
1989ChevroletS102.8LV6Left
1989ChevroletS10 Blazer2.8LV6Left
1989GMCS152.8LV6Left
1989GMCS15 Jimmy2.8LV6Left
1989PontiacFirebird2.8LV6Left
1988ChevroletCamaro2.8LV6Left
1988ChevroletS102.8LV6Left
1988ChevroletS10 Blazer2.8LV6Left
1988GMCS152.8LV6Left
1988GMCS15 Jimmy2.8LV6Left
1988PontiacFirebird2.8LV6Left
1987ChevroletCamaro2.8LV6Left
1987ChevroletS102.8LV6Left
1987ChevroletS10 Blazer2.8LV6Left
1987GMCS152.8LV6Left
1987GMCS15 Jimmy2.8LV6Left
1987PontiacFirebird2.8LV6Left
1986ChevroletCamaro2.8LV6Left
1986ChevroletS102.8LV6Left
1986ChevroletS10 Blazer2.8LV6Left
1986GMCS152.8LV6Left
1986GMCS15 Jimmy2.8LV6Left
1986PontiacFirebird2.8LV6Left
1985ChevroletCamaro2.8LV6Left
1985PontiacFirebird2.8LV6Left
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ATP — 10114810044869