Our aftermarket manifolds are some of the highest quality replacements on the market!

If your vehicle's exhaust is getting loud and the exhaust noise is coming from under the hood or engine then you may need to fix a cracked exhaust manifold. Replacing a broken manifold is easiest with a direct replacement manifold that will fit correctly and bolt up to you original engine and exhaust system. This manifold is a direct fitting replacement.

This cast iron manifold has been designed to eliminate the faults of the original GM design.

 

Specifications

  • Passenger side
  • 3 bolt flange
  • Heat shield included
  • Includes Gaskets and Hardware
  • Direct replacement
  • Replaces original manifolds that are cracked from thermal expansion and contraction
  • Corrosion resistant
  • Strengthened and redesigned in the vulnerable areas of failure

Now you can buy a high quality exhaust manifold that is built to strict quality control standards for a fraction of the dealer price. REPLACE your broken, warped, or cracked one now with this great fitting, alternative.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

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Vehicle Fit

  • 1987 Chevy Blazer Full Size Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987-1991 Chevy Blazer Full Size Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1987 Chevy R1500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987 Chevy R1500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1987 Chevy R2500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987 Chevy R2500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1988 Chevy R2500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1989 Chevy R2500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1987 Chevy R3500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987 Chevy R3500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1988 Chevy R3500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1989-1991 Chevy R3500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1987 Chevy Suburban R10 Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987 Chevy Suburban R10 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1988 Chevy Suburban R10 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1989-1991 Chevy Suburban R1500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 Chevy Suburban R20 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1988 Chevy Suburban R20 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1989-1991 Chevy Suburban R2500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 Chevy Suburban V10 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1988 Chevy Suburban V10 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1989-1991 Chevy Suburban V1500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 Chevy Suburban V20 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1988 Chevy Suburban V20 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1989-1991 Chevy Suburban V2500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 Chevy V1500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1987 Chevy V1500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987 Chevy V2500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987 Chevy V2500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1988 Chevy V2500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1989 Chevy V2500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1987 Chevy V3500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1987 Chevy V3500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1988 Chevy V3500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1989-1991 Chevy V3500 Truck Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1987 GMC Jimmy Full Size Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987-1991 GMC Jimmy Full Size Exhaust Manifold V8 5.7L 350ci Passenger Side Dorman 674-158
  • 1987 GMC R1500 Truck Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC R1500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987 GMC R2500 Truck Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC R2500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1988 GMC R2500 Truck Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC R3500 Truck Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC R3500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1988 GMC R3500 Truck Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1989-1991 GMC R3500 Truck Exhaust Manifold Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC Suburban R1500 Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987 GMC Suburban R1500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1988 GMC Suburban R1500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1989-1991 GMC Suburban R1500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC Suburban R2500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1988 GMC Suburban R2500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1989-1991 GMC Suburban R2500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC Suburban V1500 Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987 GMC Suburban V1500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1988 GMC Suburban V1500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1989-1991 GMC Suburban V1500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC Suburban V2500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1988 GMC Suburban V2500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1989-1991 GMC Suburban V2500 Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC V1500 Truck Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC V1500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1987 GMC V2500 Truck Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC V2500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1988 GMC V2500 Truck Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC V3500 Truck Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1987 GMC V3500 Truck Exhaust Manifold V8 5.0L 305ci Passenger Side Dorman 674-158
  • 1988 GMC V3500 Truck Exhaust Manifold 350ci Passenger Side V8 5.7L Dorman 674-158
  • 1989-1991 GMC V3500 Truck Exhaust Manifold Passenger Side V8 5.7L Dorman 674-158

This part replaces:

  • Hollander 327-1350R
  • Dorman 674-158
Only 2 left in stock
Part #: 1AEEM00050


Dorman
Brand #: 674-158