Make sure this part fits

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
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12578646
    Part DescriptionShield-Exhaust Manifold Heat; Exhaust Heat Shield
    Other NamesShield, Exhaust Manifold
    Item Dimensions21.3 x 16.2 x 5.3 inches
    Item Weight2.20 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12578646
    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
    2007-2012 Chevrolet ColoradoLS, LT, WT4 Cyl 2.9 L GAS
    2007-2012 GMC CanyonSL, SLE, SLT, WT4 Cyl 2.9 L GAS
  • 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 12578646, Excellent Performance and Perfect Fitment

To ensure reliability, purchase GM part # 12578646 Heat Shield. It is sometimes referred to as GM Exhaust Heat Shield. Choosing OEM parts is the optimal decision for guaranteeing superior quality and perfect performance. These components undergo stringent quality checks and are carefully constructed to comply with GM's factory specifications, ensuring a smooth installation process.

ChevyPartsGiant.com is a leading supplier of genuine GM parts such as GM 12578646 Heat Shield. Our website boasts an extensive inventory of OEM GM parts, available at highly competitive prices in the market. Should you require any new genuine GM parts, rest assured we will deliver them swiftly and efficiently to your doorstep. Furthermore, all our parts come with the assurance of a manufacturer's warranty. For detailed Chevy parts information, click here.
Choose ChevyPartsGiant for discounted prices, exceptional service and fast delivery