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During operation, an internal combustion engine produces a lot of exhaust gases. These gases stem from the ignition of the fuel/air mixture in the cylinders. In order for an engine to run efficiently, and make the most power possible, these gases need to be removed from the cylinder as quickly as possible, and ejected from the engine and out the vehicle’s exhaust system. An exhaust manifold is a component which is connected to the cylinder head and which is responsible for gathering up exhaust gases and routing them to the exhaust pipe. Each cylinder has a tube which collects gas when the exhaust valve is opened, and these tubes join together at the base of the manifold. Since the gas being released by the exhaust valve is under pressure, it creates what is called the exhaust pulse. Essentially, the low pressure towards the rear of the exhaust system works to pull the high pressure gas out of the cylinder, which allows for fresh oxygen to enter more quickly. This results in more power being produced. Exhaust manifolds are designed in a manner that increases the flow of gases out of the cylinders by carefully manipulating this pressure differential. Exhaust headers are a type of manifold which attempts to create an even greater exhaust gas velocity by varying the length of the manifold tubes. By fine-tuning the diameter and size of each tube, and reducing gas expansion, the headers can pull a larger volume of gas by creating a more effective exhaust pulse.

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The Following brands are available based on your search.

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    ACDelco
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    Davico Converters
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    Dorman
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Best Selling Genuine Replacement Exhaust Manifolds

  • Constantly Updated Inventory of Replacement Exhaust Manifold Parts
  • We stock Discount Exhaust Manifold OEM Parts

We stock Exhaust Manifold parts for most makes, including Acura, BMW, Buick, Cadillac, Chevrolet, Chrysler, Dodge, Eagle, Ford, Freightliner, GMC, Geo, Honda, Hummer, Hyundai, Infiniti, International, Isuzu, Jeep, Kenworth, Kia, Lexus, Lincoln, Mack, Mazda, Mercedes Benz, Mercury, Mitsubishi, Nissan, Oldsmobile, Plymouth, Pontiac, Ram, Saab, Saturn, Scion, Sterling Truck, Suzuki, Toyota, Volkswagen, Volvo, Western Star.


Dorman
2003 Oldsmobile Alero Exhaust Manifold 4 Cyl 2.2L Dorman

P311-0A6147A    674-870  New

101469 , 90537679 , SK674870

Qty:
185.95
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: 10
    • Material: Cast Iron
    • Mounting Hardware Included: Yes
    • Port Shape: Oval
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2003 - Oldsmobile Alero L 4 Cyl 2.2L 134 2198
Dorman
2001 Saturn L100 Exhaust Manifold Dorman

P311-0A6147A    674-870  New

Qty:
185.95
Dorman Exhaust Manifold
  • ; wo/California Emissions
  • 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: 10
    • Material: Cast Iron
    • Mounting Hardware Included: Yes
    • Port Shape: Oval
Brand: Dorman
Additional Fitment Information:
Vehicle Transmission
2001 - Saturn L100 Automatic
Dorman
2006 Chevrolet Cobalt Exhaust Manifold 4 Cyl 2.2L Dorman

P311-0A6147A    674-870  New

Qty:
185.95
Dorman Exhaust Manifold
  • ; wo/Super Ultra Low Emissions Vehicle (SULEV)
  • 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: 10
    • Material: Cast Iron
    • Mounting Hardware Included: Yes
    • Port Shape: Oval
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2006 - Chevrolet Cobalt L 4 Cyl 2.2L 134 2198
Dorman
2003 Cadillac Escalade Exhaust Manifold Dorman

P311-3F45A04    W0133-1866523  New

Qty:
185.18
Dorman Exhaust Manifold
Brand: Dorman
Additional Fitment Information:
Vehicle
2003 - Cadillac Escalade
Dorman
2003 GMC Savana 2500 Exhaust Manifold 8 Cyl 6.0L Dorman

P311-3F45A04    W0133-1866523  New

Qty:
185.18
Dorman Exhaust Manifold
  • ; California - ULEV & Federal
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2003 - GMC Savana 2500 V 8 Cyl 6.0L 364 5967
Dorman
2004 GMC Savana 2500 Exhaust Manifold 8 Cyl 6.0L Dorman

P311-3F45A04    W0133-1866523  New

Qty:
185.18
Dorman Exhaust Manifold
  • ; California - ULEV
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2004 - GMC Savana 2500 V 8 Cyl 6.0L 364 5967
Dorman
2009 Chevrolet Silverado 3500 HD Exhaust Manifold 8 Cyl 6.0L Dorman

P311-3F45A04    W0133-1866523  New

Qty:
185.18
Dorman Exhaust Manifold
  • ; [Gmb208][Pos.1]
Brand: Dorman
Additional Fitment Information:
Vehicle Body Wheel FeedBase Block Engine CID CC
2009 - Chevrolet Silverado 3500 HD Standard Cab Pickup 133.0 V 8 Cyl 6.0L 364 5967
Dorman
2009 GMC Savana 3500 Exhaust Manifold Dorman

P311-3F45A04    W0133-1866523  New

Qty:
185.18
Dorman Exhaust Manifold
  • ; [Gmb140][Pos.1]
Brand: Dorman
Additional Fitment Information:
Vehicle Submodel
2009 - GMC Savana 3500 LS
Dorman
2009 Chevrolet Express 3500 Exhaust Manifold 8 Cyl 6.0L Dorman

P311-3F45A04    W0133-1866523  New

Qty:
185.18
Dorman Exhaust Manifold
  • ; [Gmb145][Pos.1]
Brand: Dorman
Additional Fitment Information:
Vehicle Submodel Wheel FeedBase Block Engine CID CC
2009 - Chevrolet Express 3500 Base 155.0 V 8 Cyl 6.0L 364 5967
Dorman
2009 Chevrolet Express 3500 Exhaust Manifold 8 Cyl 6.0L Dorman

P311-3F45A04    W0133-1866523  New

Qty:
185.18
Dorman Exhaust Manifold
  • ; [Gmb144][Pos.1]
Brand: Dorman
Additional Fitment Information:
Vehicle Wheel FeedBase Block Engine CID CC
2009 - Chevrolet Express 3500 139.0 V 8 Cyl 6.0L 364 5967
Dorman
2009 GMC Yukon XL 2500 Exhaust Manifold Dorman

P311-3F45A04    W0133-1866523  New

Qty:
185.18
Dorman Exhaust Manifold
  • ; [GMB0110][2]
Brand: Dorman
Additional Fitment Information:
Vehicle
2009 - GMC Yukon XL 2500
Dorman
2009 GMC Yukon XL 1500 Exhaust Manifold 8 Cyl 6.0L Dorman

P311-3F45A04    W0133-1866523  New

Qty:
185.18
Dorman Exhaust Manifold
  • ; [GMB0095][2]
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2009 - GMC Yukon XL 1500 V 8 Cyl 6.0L 364 5967
Dorman
2009 Ford Expedition Exhaust Manifold Dorman

P311-22419F0    W0133-2019911  New

Qty:
160.58
Dorman Exhaust Manifold
  • ; [Fmt232][Pos.1]
Brand: Dorman
Additional Fitment Information:
Vehicle Submodel
2009 - Ford Expedition EL Limited
Dorman
2009 Ford F-350 Super Duty Exhaust Manifold 8 Cyl 5.4L Dorman

P311-22419F0    W0133-2019911  New

Qty:
160.58
Dorman Exhaust Manifold
  • ; Exc.Wide Body, From 10/20/08, [Fmt149a][Pos.15]
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2009 - Ford F-350 Super Duty V 8 Cyl 5.4L 330 -
Dorman
2009 Ford F-350 Super Duty Exhaust Manifold 8 Cyl 5.4L Dorman

P311-22419F0    W0133-2019911  New

Qty:
160.58
Dorman Exhaust Manifold
  • ; Wide Body, From 10/20/08, [Fmt149b][Pos.15]
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2009 - Ford F-350 Super Duty V 8 Cyl 5.4L 330 -
Dorman
2010 Ford F-350 Super Duty Exhaust Manifold 8 Cyl 5.4L Dorman

P311-22419F0    W0133-2019911  New

Qty:
160.58
Dorman Exhaust Manifold
  • ; Exc.Wide Body, [Fmt149a][Pos.15]
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2010 - Ford F-350 Super Duty V 8 Cyl 5.4L 330 -
Dorman
2010 Ford F-350 Super Duty Exhaust Manifold 8 Cyl 5.4L Dorman

P311-22419F0    W0133-2019911  New

Qty:
160.58
Dorman Exhaust Manifold
  • ; Wide Body, [Fmt149b][Pos.15]
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2010 - Ford F-350 Super Duty V 8 Cyl 5.4L 330 -
Dorman
2012 Lincoln Navigator Exhaust Manifold Dorman

P311-22419F0    W0133-2019911  New

Qty:
160.58
Dorman Exhaust Manifold
Brand: Dorman
Additional Fitment Information:
Vehicle
2012 - Lincoln Navigator
Dorman
2009 Ford F-150 Exhaust Manifold 8 Cyl 5.4L Dorman

P311-22419F0    W0133-2019911  New

Qty:
160.58
Dorman Exhaust Manifold
  • ; From 10/20/08, [FMT0035][2]
Brand: Dorman
Additional Fitment Information:
Vehicle Block Engine CID CC
2009 - Ford F-150 V 8 Cyl 5.4L 330 -
Dorman
2010 Ford F-150 Exhaust Manifold 8 Cyl 4.6L Dorman

P311-22419F0    W0133-2019911  New

Qty:
160.58
Dorman Exhaust Manifold
  • ; [FMT0035][2]
Brand: Dorman
Additional Fitment Information:
Vehicle Submodel Block Engine CID CC
2010 - Ford F-150 FX2 V 8 Cyl 4.6L 281 -