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πŸš— dorman 674-391 driver side exhaust manifold: perfect fit for chevrolet / gmc models logo

πŸš— Dorman 674-391 Driver Side Exhaust Manifold: Perfect Fit for Chevrolet / GMC Models Review

3

Β·

Average

Revainrating 3.5 out of 5Β Β 
RatingΒ 
3.3
🌫️ Exhaust & Emissions, πŸ› οΈ Replacement Parts

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Description of πŸš— Dorman 674-391 Driver Side Exhaust Manifold: Perfect Fit for Chevrolet / GMC Models

Ideal replacement - this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles. Reliable construction - durable materials resist warping, cracking and leaking for long-lasting performance. Complete repair - includes all necessary gaskets and downpipe hardware. Trustworthy design - built by industry leader in aftermarket manifolds. Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool.

Reviews

Global ratings 3
  • 5
    1
  • 4
    1
  • 3
    0
  • 2
    0
  • 1
    1

Type of review

Revainrating 4 out of 5

Fits Trucks. Works great with Manifolds

Fits Trucks. The fitting supplied with the egr is different from the OEM so you must use this manifold with it. I mostly ordered for the faucet because the dealer wants more than this whole manifold just for that faucet. I went ahead and used the entire manifold and it worked fine. It worked because when I took my old one off it was still cracked so the fit was different.

Pros
  • Exhaust and Emissions
Cons
  • Almost OK

Revainrating 5 out of 5

Replica - Manifold

Bought and installed in early August 2021 for a GMC dump truck. It was a perfect copy of the old one. The old piece broke in half, most likely after the steel protection fell off and there was nothing to protect it from the elements; Water wets the collector and causes cracks. At least I think that's what happened with this one and the location of the distributor. Again, this is a replica, not an original part of the car. I still recommend it. 5 stars (🌟🌟🌟🌟🌟)

Pros
  • Manifold
Cons
  • Everything OK

Revainrating 1 out of 5

Crack and crack again.

I bought a pair of these manifolds to replace manifolds on Suburbans that were leaking badly. The driver's side cracked in the step of #5-7 skids. Revain contacted and was asked to return the part. When removed, it broke into two pieces. I got a replacement from Revain and installed it. Now torn in the same place. No more warranty as the replacement does not extend the warranty. In addition, the driver's side heat shield is knocked out because it touches the base of the engine mount under load.

Pros
  • Manifolds and Parts
Cons
  • Out of fashion