Dorman - OE Solutions Exhaust Manifold P/N:674-434
Dorman 674-525 right exhaust manifold for the 1999-2001 GMC Sierra 1500 V8 4.8L or 5.3L, the 2001-2002 Sierra 1500 V8 6.0L and other vehicles collects exhaust gas from the cylinders and sends it on to the downpipe. This Dorman exhaust manifold is a repair kit made to replace the original manifold on the vehicles it fits.
A ticking noise on a cold start or an exhaust smell near the engine can mean a leaking manifold. Before replacing it, look it over with the engine off and cool for cracks, soot around the gaskets and broken studs, because a leak at the downpipe joint can sound much the same.
The 1999-2001 Chevrolet Silverado 2500 V8 5.3L, the 1999-2002 Silverado 2500 V8 6.0L and the 1999-2001 Silverado 1500 V8 4.8L or 5.3L take it as well, along with many other trucks, SUVs and vans. If your vehicle is not one of these, look it up in the "Vehicles it fits" section.
Fit and size
Build and materials
One right exhaust manifold, one manifold gasket, one flange gasket, three studs and three nuts. This listing is one right-side manifold; the right side takes one, and the left side is a separate part ordered on its own.
Interchange: 24056704530728229 · 101262 · 12562236 · 12562333 · 12564157 · 12564161 · 12605246
This part cross-references / interchanges with the following part numbers:
Does the Dorman 674-525 exhaust manifold fit the 1999-2001 GMC Sierra 1500 V8 4.8L or 5.3L?
Yes. Dorman 674-525 is the right-side exhaust manifold for the 1999-2001 GMC Sierra 1500 V8 4.8L or 5.3L and the 2001-2002 Sierra 1500 V8 6.0L. For any other vehicle, use the "Vehicles it fits" section.
Will a Dorman 674 exhaust manifold fit the 1999-2001 Chevrolet Silverado 1500 V8 4.8L or 5.3L?
Yes. The Dorman 674-525 right exhaust manifold fits the 1999-2001 Chevrolet Silverado 1500 V8 4.8L or 5.3L, and it is the right-side part only.
Does the Dorman manifold come with gaskets and studs?
Yes. The kit holds the right exhaust manifold, one manifold gasket, one flange gasket, three studs and three nuts.
Is the Dorman OE Solutions exhaust manifold made of cast iron?
Yes. This right exhaust manifold is cast iron with round ports, sold in the standard replacement grade.
What does a leaking exhaust manifold sound like?
A leaking manifold can cause a ticking or tapping that is loudest on a cold start and may quiet as the metal warms up. A shop can confirm where the leak is.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.