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Shop By Brand

The Following brands are available based on your search.

  • ACDelco
    ACDelco
  • ATP
    ATP
  • Davico Converters
    Davico Converters
  • Dorman
    Dorman
  • Genuine
    Genuine

Best Selling Genuine Buick Exhaust Manifolds

  • We Stock the following top leading brands, including Dorman, ATP, Genuine, ACDelco
  • Constantly Updated Inventory of Buick Replacement Exhaust Manifold Parts

We stock Exhaust Manifold parts for most Buick models, including Allure, Century, Enclave, Encore, LaCrosse, LeSabre, Lucerne, Park Avenue, Rainier, Regal, Rendezvous, Riviera, Roadmaster, Skylark, Somerset, Somerset Regal, Terraza, Verano.


Dorman
1978 Buick LeSabre Exhaust Manifold - Right 8 Cyl 5.0L Dorman

P311-356B36B    674-202  New

346222 , SK674202 , 101084

Qty:
112.95
Dorman Exhaust Manifold Right
  • Product Attributes:
    • Color: Natural
    • Flange Bolt Hole Quantity: 0
    • Flange Stud Hole Quantity: 3
    • Grade Type: Regular
    • Heat Shield Included: No
    • Manifold Bolt Hole Quantity: 6
    • Material: Cast Iron
    • Mounting Hardware Included: Yes
    • Port Shape: Square
Brand: Dorman
Position: Right
Additional Fitment Information:
Vehicle Position Block Engine CID CC
1978 - Buick LeSabre Right V 8 Cyl 5.0L 305 -
Dorman
1997 Buick Regal Exhaust Manifold - Rear Dorman

P311-58F841F    674-541  New

24503918 , 24507481 , 101274

Qty:
149.95
Dorman Exhaust Manifold Rear
  • Product Attributes:
    • Color: Natural
    • Flange Bolt Hole Quantity: 0
    • Flange Stud Hole Quantity: 2
    • Grade Type: Regular
    • Heat Shield Included: No
    • Manifold Bolt Hole Quantity: 7
    • Mounting Hardware Included: Yes
    • Port Shape: Round
Brand: Dorman
Position: Rear
Additional Fitment Information:
Vehicle Position
1997 - Buick Regal Rear
Dorman
1998 Buick Century Exhaust Manifold - Rear Dorman

P311-37B983C    674-567  New

24506309 , 101288 , SK674567

Qty:
139.95
Dorman Exhaust Manifold Rear
  • Product Attributes:
    • Color: Natural
    • Flange Bolt Hole Quantity: 0
    • Flange Stud Hole Quantity: 2
    • Grade Type: Regular
    • Heat Shield Included: Yes
    • Manifold Bolt Hole Quantity: 6
    • Material: Cast Iron
    • Mounting Hardware Included: Yes
    • Port Shape: Irregular
Brand: Dorman
Position: Rear
Additional Fitment Information:
Vehicle Position
1998 - Buick Century Rear
Dorman
1978 Buick Century Exhaust Manifold - Right 8 Cyl 5.0L Dorman

P311-4CB1F99    674-653  New

101156 , 14014500

Qty:
175.95
Dorman Exhaust Manifold Right
  • Product Attributes:
    • Color: Natural
    • Flange Bolt Hole Quantity: 0
    • Flange Stud Hole Quantity: 2
    • Grade Type: Regular
    • Heat Shield Included: Yes
    • Manifold Bolt Hole Quantity: 6
    • Material: Cast Iron
    • Mounting Hardware Included: Yes
    • Port Shape: Square
Brand: Dorman
Position: Right
Additional Fitment Information:
Vehicle Position Block Engine CID CC
1978 - Buick Century Right V 8 Cyl 5.0L 305 -
Dorman
2005 Buick Rainier Exhaust Manifold 6 Cyl 4.2L Dorman

P311-5AD43CB    674-777  New

8888905600 , 88890560 , SK674777 , 674777 , 101403

Qty:
125.74
Dorman Exhaust Manifold
  • Product Attributes:
    • Color: Natural
    • Flange Bolt Hole Quantity: 0
    • Flange Stud Hole Quantity: 3
    • Grade Type: Regular
    • Heat Shield Included: Yes
    • Manifold Bolt Hole Quantity: 11
    • Material: Cast Iron
    • Mounting Hardware Included: Yes
    • Port Shape: Oval
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2005 - Buick Rainier L 6 Cyl 4.2L 256 -
Dorman
1987 Buick Century Exhaust Manifold 4 Cyl 2.5L Dorman

P311-06B3727    674-101  New

10044374 , 10041215 , 101077

Qty:
97.23
Dorman Exhaust Manifold
  • Product Attributes:
    • Color: Natural
    • Flange Bolt Hole Quantity: 2
    • Flange Stud Hole Quantity: 0
    • Grade Type: Regular
    • Heat Shield Included: Yes
    • Manifold Bolt Hole Quantity: 7
    • Material: Cast Iron
    • Mounting Hardware Included: Yes
    • Port Shape: Square
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
1987 - Buick Century L 4 Cyl 2.5L 151 2474
Dorman
1996 Buick Roadmaster Exhaust Manifold - Right Dorman

P311-30E3D44    674-206  New

101085 , 12556731 , 12524289

Qty:
67.48
Dorman Exhaust Manifold Right
  • Product Attributes:
    • Color: Natural
    • Flange Bolt Hole Quantity: 0
    • Flange Stud Hole Quantity: 3
    • Grade Type: Regular
    • Heat Shield Included: Yes
    • Manifold Bolt Hole Quantity: 6
    • Material: Cast Iron
    • Mounting Hardware Included: Yes
    • Port Shape: Irregular
Brand: Dorman
Position: Right
Additional Fitment Information:
Vehicle Position
1996 - Buick Roadmaster Right
Dorman
1995 Buick Regal Exhaust Manifold - Rear 6 Cyl 3.1L Dorman

P311-171E33C    674-269  New

101129 , 10244605 , 10182322 , SK674269

Qty:
108.95
Dorman Exhaust Manifold Rear
  • Product Attributes:
    • Color: Natural
    • Flange Bolt Hole Quantity: 2
    • Flange Stud Hole Quantity: 0
    • Grade Type: Regular
    • Heat Shield Included: No
    • Manifold Bolt Hole Quantity: 6
    • Material: Cast Iron
    • Mounting Hardware Included: Yes
    • Port Shape: Irregular
Brand: Dorman
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
1995 - Buick Regal Rear V 6 Cyl 3.1L 189 -
Dorman
1998 Buick Century Exhaust Manifold - Front Dorman

P311-0CCC403    674-544  New

101275 , SK674544 , 10182321

Qty:
96.80
Dorman Exhaust Manifold Front
  • Product Attributes:
    • Color: Natural
    • Flange Bolt Hole Quantity: 0
    • Flange Stud Hole Quantity: 3
    • Grade Type: Regular
    • Heat Shield Included: Yes
    • Manifold Bolt Hole Quantity: 6
    • Material: Cast Iron
    • Mounting Hardware Included: Yes
    • Port Shape: Irregular
Brand: Dorman
Position: Front
Additional Fitment Information:
Vehicle Position
1998 - Buick Century Front
ATP
1977 Buick Regal Exhaust Manifold - Right 8 Cyl 5.7L ATP

P311-06EED48    101084  New

674202 , 101084 , 6002419 , 327815R , 22521449 , M327183 , 148815

Qty:
140.77
ATP Exhaust Manifold Right
  • ATP Exhaust Manifold
  • ; Includes: (1) Manifold & Flange Gasket, (3) Studs, (3) Nuts, (3) Washers w/o Heat Stove; with Heat Shield
  • Product Attributes:
    • LineCode: Atp2
  • ATP exhaust manifolds transport burnt exhaust gasses from the engine to the exhaust system. Over time exhaust manifolds can crack or warp releasing hot exhaust gas into the engine compartment. These gases can find their way into the passenger cabin creating a dangerous situation. The best way to repair the broken manifold is to replace it with a new one. ATP Exhaust manifolds are designed to fit and function like the original part restoring the exhaust system by eliminating the dangerous leaks.
Brand: ATP
Position: Right
Additional Fitment Information:
Vehicle Position Block Engine CID CC
1977 - Buick Regal Right V 8 Cyl 5.7L 350 -
Dorman
2015 Buick Enclave Exhaust Manifold Dorman

P311-518EBCD    W0133-1865795  New

Qty:
131.12
Dorman Exhaust Manifold
Brand: Dorman
Additional Fitment Information:
Vehicle
2015 - Buick Enclave
Genuine
2013 Buick Enclave Exhaust Manifold Genuine

P311-10BE74A    W0133-1865795  New

Qty:
143.97
Genuine Exhaust Manifold
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Genuine
Additional Fitment Information:
Vehicle
2013 - Buick Enclave
Dorman
2010 Buick Enclave Exhaust Manifold Dorman

P311-518EBCD    W0133-1865795  New

Qty:
131.12
Dorman Exhaust Manifold
  • ; [GMA0135][3]
Brand: Dorman
Additional Fitment Information:
Vehicle
2010 - Buick Enclave
Genuine
2010 Buick Enclave Exhaust Manifold Genuine

P311-10BE74A    W0133-1865795  New

Qty:
143.97
Genuine Exhaust Manifold
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • ; [GMA0135][3]
Brand: Genuine
Additional Fitment Information:
Vehicle
2010 - Buick Enclave
Genuine
2015 Buick Enclave Exhaust Manifold Genuine

P311-47CBAEF    W0133-1866079  New

Qty:
166.60
Genuine Exhaust Manifold
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Genuine
Additional Fitment Information:
Vehicle
2015 - Buick Enclave
Genuine
2010 Buick Enclave Exhaust Manifold Genuine

P311-47CBAEF    W0133-1866079  New

Qty:
166.60
Genuine Exhaust Manifold
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • ; [GMA0135][3]
Brand: Genuine
Additional Fitment Information:
Vehicle
2010 - Buick Enclave
Dorman
2005 Buick Rainier Exhaust Manifold 6 Cyl 4.2L Dorman

P311-23ADAB0    W0133-1693691  New

Qty:
216.79
Dorman Exhaust Manifold
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2005 - Buick Rainier L 6 Cyl 4.2L 256 -
ACDelco
2007 Buick Rainier Exhaust Manifold - Right 8 Cyl 5.3L ACDelco - Exhaust Manifold

P311-0F78EA9    12600527  New

Qty:
96.01
ACDelco Exhaust Manifold Right
  • Exhaust Manifold
Brand: ACDelco
Position: Right
Additional Fitment Information:
Vehicle Engine Designation Engine VIN Position Block Engine
2007 - Buick Rainier LH6 M Right V 8 Cyl 5.3L
ACDelco
2014 Buick Enclave Exhaust Manifold - Left 6 Cyl 3.6L ACDelco - Exhaust Manifold

P311-0C4DE03    12571100  New

Qty:
117.46
ACDelco Exhaust Manifold Left
  • Exhaust Manifold
Brand: ACDelco
Position: Left
Additional Fitment Information:
Vehicle Engine Designation Engine VIN Position Block Engine
2014 - Buick Enclave LLT D Left V 6 Cyl 3.6L

Latest Car Advice

CarJunky AutoAdvice

03 Century codes 0134 and 0135

Showing 8 out of 8 Posts
Question From comnavguy on 03 Century codes 0134 and 0135

This 03 Buick Century with the 3400 engine and 136,000 miles has shown codes 0134 and 0135. A new catalytic converter was installed several months ago.

Today we replaced the O2 sensor 1/1 - the sensor on the exhaust manifold in front of the cat converter and erased the codes. The car was driven less than 5 miles and the MIL light came back on.

What can be the problem?

Response From Hammer Time

Did both codes come back?

Response From comnavguy

Both codes did come back. We learned that the heater ckt on the O2 sensor is blowing a fuse. Do you have a wiring diagram for that circuit? I checked the Haynes manual, but could find nothing there.

Response From Hammer Time

You have a 3.1 not a 3.4

Response From comnavguy

You are truly a gentleman and scholar. Thank you for the schematic. I knew it was a 3100 even as I was typing 3400. One day I'll get my stuff together, and when I do I hope I'll be able to liff it up.

Thanks again. You're a lifesaver.

When I find the short, I'll post my fix.

Response From Hammer Time

There aren't many places it can short. My money is on the sensor itself.

Response From comnavguy Top Rated Answer

Your bet is exactly right. The front sensor, the one in front of the catalytic converter, (bank 1/1) had an intermittent short on the heater. Tap on it and the fuse blew. Sometimes when we measured it for continuity, it checked OK.

In addition to the codes, during idle, the RPM would oscillate and on acceleration from stop, there was a slight hesitation or stumble. NOW, it's purring like a kitten.

Once again, like Mighty Mouse you saved the day.

Thanks.

Response From Hammer Time

Haha ........ Now you're showing your age.

Or you watch a lot of Nickelodeon .........LOL

2005 Buick Century codes p1404 and p520

Showing 4 out of 4 Posts
Question From robertmt on 2005 Buick Century codes p1404 and p520

Please be patient while I explain what I have done with this vehicle. I got a service engine light about a month ago which pointed to the EGR valve. I changed the valve and the light went off for a time. Then I get the light again, I have a code p0171 suggesting O2 sensor. I changed the O2 sensor on the exhaust manifold to no avail. Ordered and replaced the downstream O2 sensor near the Cat and all codes were gone. Success! For a day.

I then find that the water pump is leaking so to gain easy access to the pump, I reposition a large wiring harness and pushed it up toward the windshield while I replaced the pump. After that, everything is fine again, and today we have a strong smell of fuel from under the hood, along with codes P1404 AND P0520. It seemed I may have disturbed some connections somewhere, since these two codes do not seem to be related, but cannot find anything out of place.

After the fuel odor dissipates, the engine runs great, no hesitation, no stalling no shaking. Just the engine light on!

Thanks in advance for any ideas!

Response From Hammer Time

Then I get the light again, I have a code p0171 suggesting O2 sensor. I changed the O2 sensor on the exhaust manifold to no avail. Ordered and replaced the downstream O2 sensor near the Cat and all codes were gone. Success! For a day.

You're dreaming if you're expecting a downsteam sensor to resolve a P0171. It has absolutely nothing to do with that sensor. It's a lean code.

The P1404 could be due to carbon chunks being broken off and getting caught in the valve.

The P0520 is a problem with the oil pressure sensor circuit.

Response From robertmt

Well that was my understanding too, but out of desperation I changed the downstream O2 sensor and the light went off!

Thanks for the reply.

Response From Hammer Time Top Rated Answer

Changing the sensor didn't cause the light to go out. That sensor has one purpose and one purpose only and that is to monitor the efficiency of the Catalyst. It has no relationship to fuel mixture.