Dorman Products 911-978 Secondary Air Injection Check Valve

Secondary A.I.R. Combination Valve

Fits: 2001-2006 BMW X5

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Secondary Air Injection Check Valve

  • Quality-tested to ensure trouble-free installation and durability
  • A necessary replacement item for passing inspection in certain states
  • Direct replacement for a proper fit every time
  • Durable metal construction helps to withstand extreme temperatures

  • California Proposition 65: WARNING: Cancer and Reproductive Harm -
  • Color/Finish: Gray
  • Inlet Size (in): 0.83 In.
  • Location: Rear
  • Material: Cast Aluminum
  • Maximum Pressure Rating (psi): 50 PSI
  • Outlet Size (in): 0.83 In.
  • Package Contents: 1 Secondary Air Injection Control Valve; 1 Gasket
  • Valve Type: Reed Valve
  • Working Temperature Range: -40C To 125C

This item may interchange to the following part numbers from other brands. This is provided for reference only and does not guarantee that the part your are buying is identical to the part numbers from the brands listed below. To confirm that this part fits your vehicle, enter your vehicles Year, Make, Model, Trim and Engine in the Compatibility Table.

  • BMW 11727540471
The A.I.R. Check Valve is an emission control device that allows air into the exhaust system to help burn pollutants before they reach the atmosphere. Dorman's A.I.R Check Valve is constructed to withstand the extreme heat of the exhaust manifold and function properly every time.

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