Dorman 674-391 left exhaust manifold for the 1996-2000 Chevrolet C2500 V8 7.4L and other vehicles carries exhaust gas from the cylinders to the downpipe. This Dorman exhaust manifold is built to fit and work like the original manifold on specified vehicles.
- Cast iron construction that resists warping, cracking and leaking
- Includes all necessary gaskets and downpipe hardware for a complete repair
- Part of the Dorman OE Solutions exhaust manifold line
- Standard replacement grade
Quick facts
- Part: Dorman 674-391 exhaust manifold
- Fits: the 1996-2000 Chevrolet C2500 V8 7.4L and other vehicles
- Position: Left
- Material: Cast Iron
- Condition: New
A leaking or cracked manifold can show up as a ticking or puffing noise from the engine or an exhaust smell. Look it over with the engine off and cool for cracks, soot at the joints or broken studs, because other exhaust parts can give similar signs. If a failed manifold is the cause, this one replaces it.
Fits
Besides the 1996-2000 Chevrolet C2500 V8 7.4L, this left-side manifold is a direct-fit replacement for the 1996-2000 Chevrolet C3500 V8 7.4L and the 1996-2000 Chevrolet C3500HD V8 7.4L, along with other Chevrolet and GMC models.
Specifications
Fit and size
- Position: Left
- Quantity per vehicle: 1 for this side
- Port shape: Square
Build and materials
- Material: Cast iron
- Condition: New
- Country of origin: China
In the box
One exhaust manifold, one manifold gasket, 3 studs and 3 nuts. The kit also includes a heat shield. This listing is one left manifold; that side takes one, and the right side is a separate part.
Interchange: 116337441992427413 · 101179 · 10230859 · 12553149 · SK674391
This part cross-references / interchanges with the following part numbers:
116337441992427413, 101179, 10230859, 12553149, SK674391
Frequently Asked Questions
Is the Dorman 674 exhaust manifold right for the 1996-2000 Chevrolet C3500 V8 7.4L?
Yes. Dorman 674-391 is listed for the 1996-2000 Chevrolet C3500 V8 7.4L and many other Chevrolet and GMC models. If your truck isn't named here, find it in the "Vehicles it fits" section.
Do the studs and nuts come with this Dorman manifold?
Yes. The kit has 3 studs, 3 nuts and one manifold gasket with the manifold. A heat shield is listed as included too.
Which side of the engine does this exhaust manifold go on?
This listing is the left manifold, and that side takes one. The right side is a separate part, so order it on its own.
How can I tell if this left exhaust manifold is leaking?
A ticking or puffing noise, an exhaust smell or soot around the joints can point to a leak. Look with the engine off and cool; a shop can test anything beyond that.
Does Dorman 674-391 replace number 10230859?
Yes. 10230859 is listed as an interchange number for Dorman 674-391, along with 12553149 and 101179.
