The intake manifold channels the air needed for combustion into the cylinder head intake ports. The air enters from a central point, a carburetor, or on fuel injected engines a throttle body, and then travels through individual passages called runners to the cylinder head(s). Depending on the vehicle model, the intake manifold can be mounted either on top of the engine between the cylinder banks, or at the side of the engine, attached to the cylinder head.

Featured Products

  • Dorman® Intake Manifold
    (2 reviews)
    # sp4077
    Intake Manifold by Dorman®. More like a complete service kit than a single part. Dorman’s Intake Manifold includes all the essential components for a full repair. Since this part is a direct replacement, the exact fit adds...
    $48.84 - $403.49
  • Dorman® Intake Manifold Runner Control
    (0 reviews)
    # sp6813
    Intake Manifold Runner Control by Dorman®. Save time, money and labor with Dorman's Intake Manifold Runner Control Valve. Now you can replace only the part, instead of the entire Intake Manifold. Replacement restores fuel...
    $32.85 - $195.95
  • Victor Reinz® Intake Manifold Gasket Set
    (0 reviews)
    # sp5685
    Intake Manifold Gasket Set by Victor Reinz®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only to find high...
    $2.40 - $120.43
  • Auto 7® Intake Manifold Gasket
    (0 reviews)
    # sp4901
    Intake Manifold Gasket by Auto 7®. Heat and dirt are your engine's greatest enemies. Let your engine breathe clean, fresh air and protect it from the destructive effects of dirt and dust. Auto 7 has the quality parts to repair your...
    $0.80 - $17.70
  • Bosch® Intake Manifold Temperature Sensor
    (0 reviews)
    # sp5641
    Has your intake manifold temperature sensor failed? Choose a Bosch replacement intake manifold temperature sensor that is synonymous with premium quality, exceptional reliability, and a long service life.
    $16.08 - $81.71
  • Victor Reinz® Intake Manifold End Seal
    (0 reviews)
    # sp5686
    Intake Manifold End Seal by Victor Reinz®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only to find high...
    $5.60 - $8.08
  • Victor Reinz® Intake Manifold Isolator Grommet Set
    (0 reviews)
    # sp5684
    Intake Manifold Isolator Grommet Set by Victor Reinz®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only to...
    $13.38
  • URO Parts® Intake Manifold Cover with Valve
    (0 reviews)
    # sp12615
    Intake Manifold Cover with Valve by URO Parts®. Replace your worn out Air Intake part with this superior air intake part component designed by URO to restore your vehicle's factory performance. Manufactured to meet the highest OE...
    $40.30 - $47.97
  • Dorman® Intake Manifold Isolator Bolt
    (0 reviews)
    # sp6812
    Intake Manifold Isolator Bolt by Dorman®. Dorman’s Engine Intake Manifold Isolator Bolts are suitable for a range of Ford applications. They are recommended for replacement when servicing the manifold. We also offer a variety of...
    $26.81
  • Fel-Pro® Intake Manifold Bolt Set
    (0 reviews)
    # sp4522
    Intake Manifold Bolt Set by Fel-Pro®. If you are looking for quality sealing solutions, Fel-Pro offers you various replacement products from seals and bolts to O-Rings and dowel pins. Engineered using the latest technologies and...
    $23.68 - $33.14
  • Victor Reinz® Intake Manifold Bolt Set
    (0 reviews)
    # sp5709
    Intake Manifold Bolt Set by Victor Reinz®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only to find high...
    $23.17 - $32.58
  • URO Parts® Intake Manifold Actuator
    (0 reviews)
    # sp12614
    Intake Manifold Actuator by URO Parts. A common failure inherent to the intake manifold of Mercedes 272 & 273 engines is for breakage of the actuating mechanisms on the intake swirl flap system. These flaps are designed to create...
    $140.64 - $181.91
  • Dorman® Intake Manifold Vacuum Retainer Bushing
    (0 reviews)
    # sp6814
    Intake Manifold Vacuum Retainer Bushing by Dorman®. Dorman’s Engine Intake Manifold Vacuum Retainer Bushing is suitable for a range of applications. It holds vacuum lines in place, preventing them from chafing or rubbing against...
    $5.44
  • URO Parts® Valley Pan Cover
    (0 reviews)
    # sp12619
    Valley Pan Cover by URO Parts®. The ÜRO Parts re-engineered intake valley pan gasket for BMW V8 applications features several improvements to remedy the failure prone OE design. Several years of testing and failure analysis have...
    $0.00
  • URO Parts® Air Intake Hose
    (0 reviews)
    # sp12755
    Air Intake Hose by URO Parts®. Replace your worn out Air Intake part with this superior air intake part component designed by URO to restore your vehicle's factory performance. Manufactured to meet the highest OE standards, this...
    $16.45
  • URO Parts® Intake Manifold Runner Control Valve
    (0 reviews)
    # sp12618
    Intake Manifold Runner Control Valve by URO Parts®. Replace your worn out Air Intake part with this superior air intake part component designed by URO to restore your vehicle's factory performance. Manufactured to meet the highest...
    $168.76
  • URO Parts® Intake Manifold Gasket Clamp
    (0 reviews)
    # sp12617
    Intake Manifold Gasket Clamp by URO Parts®. Replace your worn out Air Intake part with this superior air intake part component designed by URO to restore your vehicle's factory performance. Manufactured to meet the highest OE...
    $3.27 - $53.65
  • URO Parts® Air Intake Manifold Sleeve
    (0 reviews)
    # sp12757
    Air Intake Manifold Sleeve by URO Parts®. Replace your worn out Air Intake part with this superior air intake part component designed by URO to restore your vehicle's factory performance. Manufactured to meet the highest OE...
    $23.11
  • URO Parts® Air Intake Manifold Hose
    (0 reviews)
    # sp12756
    Air Intake Manifold Hose by URO Parts®. Replace your worn out Air Intake part with this superior air intake part component designed by URO to restore your vehicle's factory performance. Manufactured to meet the highest OE...
    $9.12


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On carbureted engines and fuel injected engines with Throttle Body Injection (TBI, also called single point injection), the intake air mixes with fuel as it enters the intake manifold. On multiport fuel injected engines, fuel is introduced to the intake air stream by individual fuel injectors located at the ends of the intake manifold runners. Newer engines with Gasoline Direct Injection (GDI) inject fuel right into the combustion chambers, so the intake manifold delivers only clean air to the cylinders on these engines. Cast iron or aluminum used to be the materials of choice for intake manifolds, but today most manifolds are made of plastic (technically a composite blend). Plastic is much lighter, so it helps in the quest for greater fuel efficiency, and it dissipates heat better than metal, so the intake air charge stays cooler for better combustion.

Many intake manifolds have an upper and lower half. The two halves and the intake manifold to cylinder head(s) junction are sealed with gaskets and secured with bolts. The carburetor or throttle body are attached to the intake manifold in the same manner. The integrity of the seal at these junctures is critical and all surfaces must be clean and smooth when new gaskets are installed to prevent air leaks that could cause a lean air/fuel mixture, rough idle, and poor performance. On many V engine designs the intake manifold also serves as the valley pan, and the ends of the manifold are sealed to the cylinder block. Care must be used here when gaskets are installed or oil leaks could result.

Some intake manifolds have coolant passages and incorporate the mount for the thermostat. On older V engines with carburetors or TBI, an exhaust crossover passage was cast into the intake manifold to heat the manifold and improve fuel vaporization when the engine is cold. Modern fuel injected engines are computer controlled and the computer depends on inputs from many sensors to regulate engine operation. An Engine Coolant Temperature (ECT) sensor may be mounted in an intake manifold coolant passage to provide a coolant temperature signal to the computer, and the air temperature in the intake manifold may be signaled to the computer by an Air Charge Temperature (ACT) sensor mounted in an intake manifold runner.

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Guides & Articles

  • Auto Repair Parts
    An intake manifold is an integrated assembly that sits atop the engine, consisting of a series of tubes which distribute fresh outside air to each and every cylinder. On V-shaped engine blocks, an intake manifold typically sits between the two cylinder banks while inline engines may feature a manifold to the side of the cylinder head. Intake manifolds serve as a mounting point for carburetors, throttle body assemblies, fuel injectors, thermostats, and more depending on vehicle manufacturer engineering preferences. Intake manifolds may also serve to route coolant through dedicated channels in order to remove heat from the engine. Because of their location and functionality, intake manifold assemblies are under constant stress from engine vacuum pressure as well as direct heat from coolant, cylinder combustion gasses, and the cylinder heads to which they are mounted.

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Intake Manifolds & Components Reviews

Average rating:  4.5  4.7 - 13 reviews
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5 of 5
Lincoln Town Car / Ford Crown Victoria
Our limo company as Town cars in its fleet. We have purchased Dorman® 615-175 - Upper Intake Manifold for one of our vehicles and it worked out 100%. The quality of this item has proven to be extremely reliable. We have purchased from CARiD this particular product before and never had any issues with the unit or their service. In one of our Town cars we put 185.000 miles with Dorman® 615-175 - Upper Intake Manifold and we don't see any issues, so far so good. We currently have 3 Dormans in our vehicles. This is the only manifold that would go into our cars when needed. Hope our experience will help you with your decision. Thank you CARiD. Chariot limousine service.
TPosted by Tomer (North Hollywood, CA) /
2005 Lincoln Town Car
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