Exhaust Manifold Dorman 674-517 - 1AEEM00334

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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 design. Designed for use on Heavy Duty trucks with less emissions controls.



  • Fits Right Hand or Passenger Side of Engine
  • Direct replacement
  • Replaces original manifolds that are cracked from thermal expansion and contraction
  • Strengthened and redesigned in the vulnerable areas of failure
  • Replaces OE Part # 10166144

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Nickel (Metallic), which is known to the State of California to cause cancer. For more information, go to

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.

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Year Make Model Description
1991-1996Chevy G30 Chevy G30 Exhaust Manifold V8 5.7L Passenger Side Dorman 674-517
1991-1995Chevy P30 Chevy P30 Exhaust Manifold V8 5.7L Passenger Side Dorman 674-517
1991-1996GMC G3500 GMC G3500 Exhaust Manifold V8 5.7L Passenger Side Dorman 674-517
1991-1995GMC G3500 GMC G3500 Exhaust Manifold V8 5.7L Passenger Side Dorman 674-517
Part #: 1AEEM00334

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Brand #: 674-517