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GM 12556039
Exhaust Manifold

2001-2002 GM

Customer Questions & Expert Answers (8)
GM 12556039 Exhaust Manifold
  • Part Description
    Manifold, Engine Exhaust Manifold
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12556039
    Part DescriptionManifold, Engine Exhaust Manifold
    Item Dimensions20.7 x 8.8 x 4.1 inches
    Item Weight15.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12556039
    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
    2001-2002 Chevrolet Express 2500Base, LS8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS
    2001-2002 Chevrolet Express 3500Base, LS8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS
    2001-2002 GMC Savana 2500Base, SLT8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L GAS
    2001-2002 GMC Savana 3500Base, SLT8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L GAS
  • Customer Questions & Expert Answers

    Q:
    Is this 12556039 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 12556039 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How do you remove the exhaust manifold for the 2002 Chevrolet Express 2500? Posted by Customer
    A:
    Remove the exhaust manifold bolts through the wheelhouse and take out the exhaust manifold along with the exhaust manifold gaskets and spark plug wire shields from the engine.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    How should the new components be prepared for installation for the 2002 Chevrolet Express 2500? Posted by Customer
    A:
    Sub-assemble the NEW gaskets, spark plug wire shields, and bolts to the exhaust manifold, ensuring the bolts are held in place by the tabs on the gaskets.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What is the first step in the installation process for the 2001 Chevrolet Express 3500? Posted by Customer
    A:
    Begin by installing the exhaust manifold.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What is the next step after securing the spark plug wire support for the 2001 GMC Savana 2500? Posted by Customer
    A:
    Install the EGR valve inlet pipe to the exhaust manifold, tightening the nut to 30 Nm (22 ft. lbs.), followed by the catalytic converter assembly, the fender wheelhouse extension, and the left front tire.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What should be done before removing the exhaust manifold for the 2001 GMC Savana 3500? Posted by Customer
    A:
    Remove the spark plugs.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What should be removed before taking out the exhaust manifold for the 2002 GMC Savana 3500? Posted by Customer
    A:
    Remove the spark plugs.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Manifold
    Q:
    What should be done after the Oil level indicator tube for the 2002 GMC Savana 3500? Posted by Customer
    A:
    Follow by installing the exhaust pipe to the exhaust manifold.
    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 12556039, Excellent Performance and Perfect Fitment

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