Dorman 674-231 left exhaust manifold for the 1987 Chevrolet Blazer V8 5.0L, the 1987-1991 Blazer V8 5.7L and other vehicles collects exhaust gas from the cylinders and passes it to the downpipe. This Dorman exhaust manifold is a kit with its gasket and downpipe hardware, engineered to fit and work like the stock manifold on the vehicles it covers.
- Dorman OE Solutions exhaust manifold in a standard replacement grade
- Cast iron construction with square ports
- Durable materials that resist warping, cracking and leaking
- Kit includes the manifold gasket, flange and downpipe hardware
Quick facts
- Part: Dorman 674-231 exhaust manifold
- Fits: 1987 Chevrolet Blazer V8 5.0L, the 1987-1991 Blazer V8 5.7L and other vehicles
- Position: Left
- Material: Cast iron
- Condition: New
A ticking sound that is louder on a cold start, soot streaks at the joints or a visible crack can be signs of an exhaust leak. Before you replace this manifold, rule out a loose downpipe joint or a worn gasket, which can make a similar ticking sound. A shop can confirm a leak with the engine running.
Fits
The vehicles it fits include the 1987 GMC Jimmy V8 5.0L, the 1987-1991 Jimmy V8 5.7L and the 1989-1991 Chevrolet R3500 V8 5.7L. If your truck is not named here, find your year and engine in the "Vehicles it fits" section. This listing is one left-side manifold, and the right side is a separate part.
Specifications
Fit and size
- Position: Left
- Quantity per application: 1
- Port shape: Square
Build and materials
- Material: Cast iron
- Grade: Standard replacement
- Gasket and mounting hardware: Included
- Condition: New
- Country of origin: China
In the box
One left exhaust manifold with one manifold gasket, one flange, three studs, three nuts, three springs and three washers. Each fitted vehicle takes one manifold on this side. A heat shield is not included, so plan on new fasteners if you reinstall one.
Interchange: 116337441992427411 · 101096 · 14093653
This part cross-references / interchanges with the following part numbers:
116337441992427411, 101096, 14093653
Frequently Asked Questions
Does the Dorman 674 exhaust manifold fit the 1987-1991 Chevrolet Blazer V8 5.7L?
Yes. Dorman 674-231 is a left exhaust manifold for the 1987-1991 Chevrolet Blazer V8 5.7L and the 1987 Blazer V8 5.0L. Other trucks are in the "Vehicles it fits" section.
Does this Dorman manifold come with gaskets and studs?
Yes. Dorman 674-231 includes one manifold gasket, one flange, three studs, three nuts, three springs and three washers. A heat shield is not included.
Is this left exhaust manifold cast iron, and what shape are its ports?
Yes. This manifold is cast iron with square ports, in a standard replacement grade.
How can I tell if a left exhaust manifold is leaking?
A ticking exhaust sound that is louder on a cold start, or soot streaks around the joints, can be signs of a leak. With the engine off and cool, look for cracks; a shop can confirm it.
Does 14093653 interchange with the Dorman 674-231 manifold?
Yes. 14093653 is on the interchange list for Dorman 674-231, along with 101096 and 116337441992427411.
