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GM 12646386
Timing Chain

1997-2023 GM

Customer Questions & Expert Answers (29)
GM 12646386 Timing Chain
GM 12646386 Timing Chain
GM 12646386 Timing Chain
GM 12646386 Timing Chain
GM 12646386 Timing Chain
GM 12646386 Timing Chain
GM 12646386 Timing Chain
GM 12646386 Timing Chain
GM 12646386 Timing Chain
GM 12646386 Timing Chain
  • Part Description
    Chain, Engine Timing
  • Replaced By
    12646387
  • Replaces
    12586482, 88958608, 12552954
  • Manufacturer
    General Motors
Make sure this part fits
$57.67 MSRP: $108.21
You Save: $50.54 (47%)
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  • 12646386 Timing Chain is Ref No. 25 in the diagram below

    2022 Chevy Express 3500 Timing Chain Diagram for 12646386
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 12646386

  • Vehicle Fitment

    Year Make Model Trim Engine
    2008-2009 Buick LaCrosseSuper8 Cyl 5.3 L GAS
    2004-2007 Buick RainierCXL, CXL Plus8 Cyl 5.3 L GAS
    2009-2019, 2004-2007 Cadillac CTSV8 Cyl 5.7 L GAS, 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L GAS
    2021-2023, 2002-2014 Cadillac EscaladeBase, Hybrid, Hybrid Platinum, Luxury, Platinum, Premium, Premium Luxury, Premium Luxury Platinum, Sport, Sport Platinum, V8 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, 8 Cyl 6.2 L GAS
    2021-2023, 2003-2014 Cadillac Escalade ESVBase, Luxury, Platinum, Premium, Premium Luxury, Premium Luxury Platinum, Sport, Sport Platinum, V8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
    2002-2013 Cadillac Escalade EXTBase, Luxury, Premium8 Cyl 6.0 L GAS, 8 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
    2010-2022, 1998-2002 Chevrolet CamaroLT1, SS, Z/28, Z28, Z28 SS, ZL18 Cyl 5.7 L GAS, 8 Cyl 6.2 L GAS, 8 Cyl 7.0 L GAS
    2011-2017 Chevrolet CapricePPV8 Cyl 6.0 L FLEX
    2009-2012 Chevrolet ColoradoLT8 Cyl 5.3 L GAS
    View More
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Is this 12646386 designed for my car? Posted by ChevyPartsDeal Specialist
    A:
    Please Select Your Vehicle model to see if part number 12646386 is suitable before ordering.
    Posted by ChevyPartsDeal Specialist
    Q:
    What is the next step after removing the right bank secondary camshaft drive chain shoe and guide for the 2008 Buick LaCrosse? Posted by Customer
    A:
    Remove the right bank secondary camshaft drive chain.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What components should be removed after releasing the tension for the 2007 Buick Rainier? Posted by Customer
    A:
    The top chain guide bolts, top chain guide, exhaust camshaft position actuator bolt and actuator, intake camshaft sprocket bolt and sprocket, timing chain, and crankshaft sprocket.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What should be removed after the spark plugs for the 2007 Cadillac CTS? Posted by Customer
    A:
    Remove the engine front cover.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What should be done with the CMP actuator solenoid valve for the 2010 Cadillac Escalade ESV? Posted by Customer
    A:
    Remove and discard the CMP actuator solenoid valve (234).
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What is the next step after aligning the sprocket marks for the 2002 Cadillac Escalade? Posted by Customer
    A:
    Install the camshaft sprocket and timing chain, and if necessary, rotate the camshaft or crankshaft sprockets to align the timing marks.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What position should the camshaft sprocket alignment mark be in before installation for the 2005 Cadillac Escalade EXT? Posted by Customer
    A:
    The camshaft sprocket alignment mark should be positioned at the 6 o'clock position.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What should be installed after the right bank secondary camshaft drive chain for the 2010 Chevrolet Camaro? Posted by Customer
    A:
    Install the right bank secondary camshaft drive chain guide, the right bank secondary camshaft drive chain shoe, and the right bank secondary camshaft drive chain tensioner.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What is the first step in the replacement process for the 2006 Chevrolet Corvette? Posted by Customer
    A:
    Begin by removing the oil pump.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    How do you install the crankshaft sprocket for the 2006 Chevrolet Express 1500? Posted by Customer
    A:
    Place the key into the crankshaft keyway, tapping it until both ends are seated, then install the crankshaft sprocket onto the front of the crankshaft.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What components need to be removed after releasing the tension for the 2009 Chevrolet Colorado? Posted by Customer
    A:
    Remove and discard the exhaust camshaft position actuator bolt and the actuator, followed by the intake camshaft sprocket bolt and the sprocket itself, then remove the timing chain and crankshaft sprocket.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    How should the crankshaft sprocket be secured for the 2009 Chevrolet Express 2500? Posted by Customer
    A:
    Use the J 41478 and J 41665 to install the crankshaft sprocket until it is fully seated against the crankshaft flange.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What is the final step after installing the camshaft sprocket and timing chain for the 2003 Chevrolet Express 3500? Posted by Customer
    A:
    Reinstall the oil pump.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What tools are needed to remove the crankshaft sprocket for the 2006 Chevrolet Impala? Posted by Customer
    A:
    J8433, J41816-2, and J41558.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    How do you install the crankshaft sprocket for the 2006 Chevrolet Monte Carlo? Posted by Customer
    A:
    Place the key into the crankshaft keyway, tap it until both ends are seated, then install the crankshaft sprocket onto the crankshaft, aligning the key with the sprocket keyway.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    How should the CKP sensor reluctor ring be installed for the 2008 Chevrolet Silverado 1500? Posted by Customer
    A:
    Ensure it is properly aligned to avoid component damage and to maintain OBD II system performance; the reluctor ring must face the engine front cover.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What should be done after removing the crankshaft sprocket for the 2005 Chevrolet SSR? Posted by Customer
    A:
    Clean and inspect the timing chain and sprockets before installation.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    How should the tensioner shoe be installed for the 2009 Chevrolet Trailblazer? Posted by Customer
    A:
    Install the tensioner shoe with the bolt tightened to 26 Nm (19 lb ft).
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What should be done if necessary after removing the crankshaft sprocket for the 2004 GMC Savana 1500? Posted by Customer
    A:
    Remove the crankshaft sprocket key and clean and inspect the timing chain and sprockets.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What should be done after installing the CMP actuator for the 2009 Chevrolet Tahoe? Posted by Customer
    A:
    Install a new CMP actuator valve (234), tightening it by hand until snug, then inspect the sprockets for proper alignment.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What position should the crankshaft sprocket alignment mark be in for the 2003 GMC Savana 2500? Posted by Customer
    A:
    The alignment mark should be at the 12 o'clock position.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    How do you release the tension on the timing chain for the 2010 GMC Canyon? Posted by Customer
    A:
    Release the tension on the timing chain by moving the tensioner shoe in and place a tee into the tensioner to hold the shoe in place.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What is the final step in ensuring proper alignment for the 2006 GMC Envoy? Posted by Customer
    A:
    Ensure the dark lines on the chain are aligned with the marks on the sprockets, install the top chain guide with threadlock on the bolt threads, and tighten the top chain guide bolts to 10 Nm (89 inch lbs.).
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    How do you ensure the crankshaft sprocket is fully seated for the 2007 GMC Savana 3500? Posted by Customer
    A:
    Use the J 41665 and J 41478 to install the crankshaft sprocket until it is fully seated against the crankshaft flange.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What is the first step to replace the camshaft timing chain and sprocket for the 2009 GMC Sierra 1500? Posted by Customer
    A:
    First, remove the oil pump and starter motor, ensuring to follow the necessary precautions regarding fasteners.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    Where should the alignment mark on the camshaft sprocket be positioned for the 2007 GMC Sierra 1500 Classic? Posted by Customer
    A:
    At the 6 o'clock position.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    How do you install the crankshaft sprocket for the 2007 GMC Sierra 3500 Classic? Posted by Customer
    A:
    Install the key into the crankshaft keyway, tap it into place, and install the crankshaft sprocket, aligning it with the keyway.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What should be done after installing the camshaft sprocket and timing chain for the 2008 GMC Yukon? Posted by Customer
    A:
    Inspect for proper alignment, remove the EN 46330, and tighten the camshaft sprocket bolt to 90 N.m (66 lb ft) on the first pass, then an additional 40 degrees using the J 45059.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    Q:
    What is the torque specification for tightening the camshaft sprocket bolts for the 2006 GMC Sierra 3500? Posted by Customer
    A:
    30 Nm (22 ft. lbs.).
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Timing Chain
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Timing Chain 12646386 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 12646386 Timing Chain is available in the market under the name GM Timing Chain. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 12646386 Timing Chain fits certain Chevrolet Colorado, Tahoe, Camaro models, as well as GMC Sierra 1500, Yukon, Canyon. Additionally, it is compatible with Cadillac Escalade, CTS, Escalade ESV and Buick LaCrosse, Rainier models.
The original GM component designated by Manufacturer Part Number 12646386 maintains top performance when functioning as the Chain, Engine Timing unit. The component 12646386 is constructed from durable material and its dimensions span 5.7 x 3.0 x 0.7 inches while weighing 0.80 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. The part 12646386 has available replacement options listed under 12646387 or 12586482, 88958608, 12552954. 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.
If you want to save money in the long run on maintenance and repairs, you should choose OEM products because they're of the top level of durability. Are you on the quest of finding GM parts? Our site is worth a visit. We stock an endless selection of high-quality GM components including things like ignition coils all the way through to fan shrouds and all at prices that can not be matched. You have nothing to worry about because all our OEM parts are covered with a manufacturer warranty, which guarantees superior quality and value.