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GM 12574406
Exhaust Manifold, Driver Side

2003-2007 GM

Customer Questions & Expert Answers (14)
GM 12574406 Exhaust Manifold, Driver Side
GM 12574406 Exhaust Manifold, Driver Side
  • Part Description
    Manifold, Engine Exhaust Manifold
  • Position
    Driver Side
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12574406
    Part DescriptionManifold, Engine Exhaust Manifold
    Item Dimensions24.7 x 9.6 x 8.0 inches
    Item Weight12.00 Pounds
    PositionDriver Side
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12574406
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Trim Engine
    2003-2007 Chevrolet Express 1500Base, LS, LT6 Cyl 4.3 L GAS
    2003-2006 Chevrolet Express 2500Base, LS6 Cyl 4.3 L GAS
    2003-2007 Chevrolet Silverado 1500Base, LS, LT, WT6 Cyl 4.3 L GAS
    2007 Chevrolet Silverado 1500 ClassicLS, WT6 Cyl 4.3 L GAS
    2003-2007 GMC Savana 1500Base, LS, LT, SLE6 Cyl 4.3 L GAS
    2003-2006 GMC Savana 2500Base, SLE6 Cyl 4.3 L GAS
    2003-2007 GMC Sierra 1500Base, SL, SLE, SLT, WT6 Cyl 4.3 L GAS
    2007 GMC Sierra 1500 ClassicSL, WT6 Cyl 4.3 L GAS
  • Customer Questions & Expert Answers

    Q:
    Is this 12574406 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 12574406 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    What should be done after disconnecting the ECT sensor for the 2005 Chevrolet Silverado 1500? Posted by Customer
    A:
    Remove the bolts/stud for the exhaust manifold and spark plug wire shields, then take off the shields and discard the exhaust manifold gaskets.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    Why is it important to use a new gasket when servicing the exhaust manifold for the 2006 Chevrolet Express 1500? Posted by Customer
    A:
    Reusing the exhaust manifold-to-cylinder head gaskets can lead to improper sealing and affect on-board diagnostics (OBD) II system performance.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What is the torque specification for tightening the exhaust manifold bolts and nuts for the 2006 Chevrolet Express 1500? Posted by Customer
    A:
    Tighten the exhaust manifold bolts and nuts to 38 Nm (28 ft. lbs.) in the proper sequence.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What components should be removed after disconnecting the spark plug wires for the 2005 Chevrolet Express 2500? Posted by Customer
    A:
    The bolts and the spark plug wire support.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What should be removed after disconnecting the ECT sensor for the 2006 Chevrolet Silverado 1500? Posted by Customer
    A:
    Remove the bolts/stud securing the exhaust manifold and spark plug wire shields, then take off the shields and discard the exhaust manifold gaskets.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    Where should the wire harness be positioned for the 2004 Chevrolet Silverado 1500? Posted by Customer
    A:
    Position the wire harness on top of the engine.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What is the procedure for removing the exhaust manifold for the 2007 Chevrolet Silverado 1500 Classic? Posted by Customer
    A:
    Remove the exhaust manifold and spark plug wire shields bolts/stud, then take off the exhaust manifold and plug wire shields, discarding the old exhaust manifold gaskets.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What needs to be removed before taking off the exhaust manifold for the 2005 GMC Savana 2500? Posted by Customer
    A:
    Remove the spark plug wires.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What is the final torque specification for the bolts for the 2005 GMC Sierra 1500? Posted by Customer
    A:
    A final pass to 25 Nm (18 ft. lbs.).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What is the next step after removing the pipe nuts for the 2007 GMC Sierra 1500 Classic? Posted by Customer
    A:
    Lower the vehicle and loosen the air cleaner outlet duct clamp at the mass airflow (MAF)/intake air temperature (IAT) sensor.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What should be done with the air cleaner outlet duct for the 2006 GMC Sierra 1500? Posted by Customer
    A:
    Pivot it upward until the hinge clip releases from the throttle body, then remove the oil level indicator tube.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What should be done to the exhaust manifold gasket at the rear of the left cylinder head for the 2005 GMC Sierra 1500? Posted by Customer
    A:
    Bend over the exposed edge of the exhaust manifold gasket with a flat punch.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What should be done after lowering for the 2007 GMC Sierra 1500? Posted by Customer
    A:
    Take off the exhaust manifold heat shield bolts and shield, followed by removing the spark plugs.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM 12574406, Excellent Performance and Perfect Fitment

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