🚗 Upgrade Your Ride with Confidence!
The Dorman 674-937 Exhaust Manifold Kit is a precision-engineered replacement designed to match the fit and function of stock manifolds on select vehicles. It includes all necessary gaskets and hardware, ensuring a complete repair. Built from durable materials, this kit resists warping, cracking, and leaking, providing long-lasting performance. Trust in a product from an industry leader in aftermarket parts, and easily confirm compatibility with your vehicle.
UPC | 019495438113 |
Global Trade Identification Number | 00019495438113 |
Model | Dorman 674-937: Exhaust Manifold Kit - Includes Required Gaskets And Hardware |
Item Weight | 12.8 pounds |
Product Dimensions | 19.4 x 11.1 x 5.1 inches |
Country of Origin | China |
Item model number | 674-937 |
Exterior | Machined |
Manufacturer Part Number | 674-937 |
OEM Part Number | 101551; 663432; 12615133; 12630741; 12643496 |
Hollander Number | 327-221 |
C**S
Perfect Fit 2011 Buick Regal 2.4L
Some reviewers mentioned fitment issues however I did not have any fitment issues and it lined right up with the studs. I did however have to drop the exhaust a few inches by loosening the sub-frame bolts and having a friend use a pry bar to push the exhaust lower, so that the manifold would clear the studs on the catalytic converter, while removing and installing the exhaust manifold. I did have to replace the O2 sensor since my car had 85k and the sensor was damaged. The old manifold was able to be removed without removing the old O2 sensor. My old exhaust manifold failed and had a crack down the middle of it which appears to be a common issue. The new part came with new nuts for the catalytic converter flange as well as the metal ring gasket, and new bolts for the exhaust heat shield. Be aware the flange between the manifold and the catalytic converter is a triangle but one side is longer than the rest and can only go on one way. I used the gasket that came with this kit and so far no leaks. I did order replacement studs however none of them broke so I reused the ones still installed in the cylinder head. Overall seems like a solid product. I will update if it fails again.
T**I
Great part for a great price
Amazon is the way to go if you want affordable and durable parts for an old car. This went on a 2010 Chevy Malibu perfectly!
R**P
the part fits just right
Great for the money
E**
Exact fit
I liked the fact that it was an exact fit for the 2.4 in the buick lacrosse. Absolutely no problems with the install.
J**Y
Fits 2011 malibu, 2.4 ecotec
Was missing the extra bolts shown in the description but everything else was included(gaskets). So far it's working great.
A**T
2012 Chevy Malibu LTZ 2.4 Ecotec
Fit like OEM. Only comes with flange gasket. You will need manifold gaskets. Be sure to clean the oil off of it before running your motor.
S**N
Exhausted manifold
Bought the manifold came the next day as promised “prime member” came in two boxes. Amazon on top and another .. IT WAS A Perfect fit . comes with seal and nuts . Easy fix . Worth the money! Shops will over charge you for something so easy
S**.
Happy that a complete kit is made for this very common problem!
Manifold required the same O.E.. secondary air injection rail repair as the factory installed one didn't get which is why all of them crack. Guess when you order a half million rails that turn out to be defective, you bend the manifolds and pry the rails in to place. Shame it only takes 5 mins with a torch and jig to align it, an grinding a radius and camfer on the lower inside of both rail mounts. Great product, I recommend not to grind the manifold to make your rail fit, use the old gasket for the jig, and correct the rail!!!
J**
Worked great
No problems. Good fit. Saved 800 dollarsJust remember to remove 3 cat studs. Not just nuts.
P**N
Need to alter to fit
Good price and it came with gasket and seal for catalytic converter. To buy from an auto store was $100 more. A muffler shop charged $550 to do the job. So it’s better to buy part online. I did have to grind the bottom tabs on manifold and also one side to get it to fit properly.This manifold was more robust than the factory manifold hence the need to grind to fit.
T**R
It works
2010 malibu 2.0LGood price and wverything included in a kit. I was nervous to buy because of claims of having to grind the casting to make it fit. Its true you do have to grind a bit on the bottom on driver side of the casting. But its really no big deal and easyto do. But dorman should have had this fixed in their production its unacceptable in my opinion. But regardless for the price it otherwise fits great and performs like new, and for the cost and getting the whole kit I would recommend it
S**N
shipping is always a week late
product fit great but the shipping was a week longer than they said
K**E
great value
was uncertain about the folit when I ordered but ended up being the perfect fit
Trustpilot
3 weeks ago
2 months ago