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GM 12578646
Heat Shield

2007-2012 GM

Customer Questions & Expert Answers (10)
GM 12578646 Heat Shield
GM 12578646 Heat Shield
  • Part Description
    Shield-Exhaust Manifold Heat; Exhaust Heat Shield
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Vehicle Fitment

    Year Make Model Trim Engine
    2007-2012 Chevrolet ColoradoLS, LT, WT4 Cyl 2.9 L GAS
    2007-2012 GMC CanyonSL, SLE, SLT, WT4 Cyl 2.9 L GAS
    Warning: California's Proposition 65
  • Customer Questions & Expert Answers

    Q:
    Is this 12578646 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 12578646 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    What is the next step after installing the new heat shield for the 2008 Chevrolet Colorado? Posted by Customer
    A:
    Reinstall the HO2S onto the exhaust manifold.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Heat Shield
    Q:
    What should be done if it is equipped with M30 for the 2010 Chevrolet Colorado? Posted by Customer
    A:
    Take off the transmission filler tube bracket nut from the A.I.R. adapter and set it aside.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Heat Shield
    Q:
    How do you secure the heat shield back in place for the 2007 Chevrolet Colorado? Posted by Customer
    A:
    Install the 5 nuts to secure it.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Heat Shield
    Q:
    What should be removed to take off the heat shield for the 2009 Chevrolet Colorado? Posted by Customer
    A:
    Remove the 3 nuts securing the heat shield to the floor panel.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Heat Shield
    Q:
    How should the heat shield nuts be installed for the 2007 Chevrolet Colorado? Posted by Customer
    A:
    Install the nuts and tighten them to 10 N.m (89 lb in).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Heat Shield
    Q:
    What is the first step to replace the exhaust pipe heat shield for the 2010 Chevrolet Colorado? Posted by Customer
    A:
    Raise and support the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Heat Shield
    Q:
    How do you remove the old catalytic converter heat shield for the 2010 GMC Canyon? Posted by Customer
    A:
    Remove the 5 nuts securing the heat shield to the floor panel and then take off the heat shield from the floor panel.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Heat Shield
    Q:
    What is the first step to replace the exhaust muffler heat shield for the 2007 GMC Canyon? Posted by Customer
    A:
    First, raise and support the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Heat Shield
    Q:
    What should be done after removing the heat shield for the 2009 GMC Canyon? Posted by Customer
    A:
    Position the new heat shield onto the exhaust manifold and apply anti-seize GM P/N 12371386 (Canadian P/N 993128) to the heat shield nuts.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Heat Shield
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Heat Shield 12578646 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 12578646 Heat Shield is available in the market under the name GM Exhaust Heat Shield. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 12578646 Heat Shield fits certain Chevrolet Colorado models, as well as GMC Canyon models.
The original GM component designated by manufacturer part number 12578646 maintains top performance when functioning as the Shield-Exhaust Manifold Heat; Exhaust Heat Shield unit. The component 12578646 is constructed from durable material and its dimensions span 21.3 x 16.2 x 5.3 inches while weighing 2.20 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Shield, Exhaust Manifold. The part 12578646 has available replacement options. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
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