Make sure this part fits

GM 12621258
Spark Plug

2007-2017 GM

Customer Questions & Expert Answers (9)
GM 12621258 Spark Plug
  • Part Description
    Spark Plug
  • Replaces
    12571164, 12563707, 12609877
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Vehicle Fitment

    Year Make Model Trim Engine
    2007-2014 Cadillac EscaladeBase, Hybrid, Hybrid Platinum, Luxury, Platinum, Premium8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
    2010-2014 Cadillac Escalade ESVBase, Luxury, Platinum, Premium8 Cyl 6.2 L FLEX
    2007-2013 Cadillac Escalade EXTBase, Luxury, Premium8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
    2007-2013 Chevrolet AvalancheBlack Diamond LS, Black Diamond LT, Black Diamond LTZ, LS, LT, LTZ8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
    2010-2015 Chevrolet CamaroSS8 Cyl 6.2 L GAS
    2011-2017 Chevrolet CapricePPV8 Cyl 6.0 L FLEX
    2009-2012 Chevrolet ColoradoLT8 Cyl 5.3 L GAS
    2009 Chevrolet ImpalaSS8 Cyl 5.3 L GAS
    2014-2017 Chevrolet SSBase8 Cyl 6.2 L GAS
    2009-2013 Chevrolet Silverado 1500Hybrid, LS, LT, LTZ, WT, XFE8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX
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    Warning: California's Proposition 65
  • Customer Questions & Expert Answers

    Q:
    Is this 12621258 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 12621258 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How should the spark plug wire be reinstalled for the 2009 Cadillac Escalade? Posted by Customer
    A:
    Reinstall the spark plug wire, ensuring proper installation by pushing sideways on each boot to check seating and reinstalling any loose boot.
    Posted by ChevyPartsGiant Specialist
    See vehicle specific detailed answers for this Spark Plug
    Q:
    What should you do before removing the spark plug for the 2007 Cadillac Escalade EXT? Posted by Customer
    A:
    Clean any dirt around the spark plug using a brush or compressed air.
    Posted by ChevyPartsGiant Specialist
    See vehicle specific detailed answers for this Spark Plug
    Q:
    Why is it important to use only the specified spark plugs for the 2010 Chevrolet Colorado? Posted by Customer
    A:
    Using plugs that are hotter or colder can severely damage the engine.
    Posted by ChevyPartsGiant Specialist
    See vehicle specific detailed answers for this Spark Plug
    Q:
    What should you do if you are reinstalling old spark plug wires for the 2010 Chevrolet Silverado 1500? Posted by Customer
    A:
    Apply dielectric grease GM P/N 12345579 (Canadian P/N 10953481) or an equivalent to the inside of the spark plug wire boots before installing the appropriate spark plug wire boot(s) back onto the spark plug.
    Posted by ChevyPartsGiant Specialist
    See vehicle specific detailed answers for this Spark Plug
    Q:
    What is the torque specification for tightening the spark plugs for the 2009 GMC Canyon? Posted by Customer
    A:
    Tighten them to 18 Nm (13 lb ft).
    Posted by ChevyPartsGiant Specialist
    See vehicle specific detailed answers for this Spark Plug
    Q:
    What is the next step after performing the High Voltage Disabling procedure for the 2009 Chevrolet Tahoe? Posted by Customer
    A:
    Perform the service disconnect, then remove the spark plug wire by twisting the boot a 1/2 turn and pulling only on the boot.
    Posted by ChevyPartsGiant Specialist
    See vehicle specific detailed answers for this Spark Plug
    Q:
    How should you organize multiple spark plugs being replaced for the 2009 GMC Sierra 1500? Posted by Customer
    A:
    Place each in a tray marked with the corresponding cylinder number.
    Posted by ChevyPartsGiant Specialist
    See vehicle specific detailed answers for this Spark Plug
    Q:
    What is the next step after performing the High Voltage Disabling procedure for the 2010 GMC Yukon? Posted by Customer
    A:
    Perform the service disconnect, then remove the spark plug wire by twisting the boot a 1/2 turn and pulling only on the boot.
    Posted by ChevyPartsGiant Specialist
    See vehicle specific detailed answers for this Spark Plug
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Spark Plug 12621258 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 12621258 Spark Plug is available in the market under the name GM Spark Plug. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 12621258 Spark Plug fits certain Chevrolet Colorado, Tahoe, Camaro models, as well as GMC Sierra 1500, Yukon, Canyon. Additionally, it is compatible with Cadillac Escalade, Escalade ESV, Escalade EXT and Pontiac G8 models.
The original GM component designated by manufacturer part number 12621258 maintains top performance when functioning as the Spark Plug unit. The component 12621258 is constructed from durable material and its dimensions span 6.9 x 3.7 x 1.1 inches while weighing 1.00 Pounds. The component is ready in New condition to ensure full compatibility with your vehicle system. The part 12621258 has available replacement options 12571164, 12563707, 12609877. 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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