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GM 21998156
Motor Mount, Driver Side

2003-2014 GM

Customer Questions & Expert Answers (42)
GM 21998156 Motor Mount, Driver Side
GM 21998156 Motor Mount, Driver Side
GM 21998156 Motor Mount, Driver Side
GM 21998156 Motor Mount, Driver Side
GM 21998156 Motor Mount, Driver Side
GM 21998156 Motor Mount, Driver Side
GM 21998156 Motor Mount, Driver Side
  • Part Description
    Mount Assembly-Engine; Engine Mount Bracket
  • Position
    Driver Side
  • Replaces
    25743245
  • 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
  • 2003 GMC Savana 3500 Motor Mount, Driver Side Diagram for 21998156
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 21998156

  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number21998156
    Part DescriptionMount Assembly-Engine; Engine Mount Bracket
    Other NamesFront Mount; Mount, Engine Mount Dampening; Mount, Engine Mounting
    Item Dimensions8.1 x 7.1 x 7.1 inches
    Item Weight4.00 Pounds
    PositionDriver Side
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces25743245
    ManufacturerGeneral Motors
    SKU21998156
    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
    2003-2014 Chevrolet Express 1500Base, LS, LT8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    2003-2014 Chevrolet Express 2500Base, LS, LT8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    2003-2014 Chevrolet Express 3500Base, LS, LT8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    2003-2014 GMC Savana 1500Base, LS, LT, SLE8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    2003-2014 GMC Savana 2500Base, LS, LT, SLE8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    2003-2014 GMC Savana 3500Base, LS, LT, SLE8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS

  • Customer Questions & Expert Answers

    Q:
    Can you help me check if this 21998156 is the right part for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 21998156 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    What is the first step to replace the transmission mount on a 4L60-E/4L65-E/4L70-E automatic transmission for the 2009 Chevrolet Express 2500? Posted by Customer
    A:
    First, raise and support the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What should be done last before lowering the 2006 Chevrolet Express 1500? Posted by Customer
    A:
    Reinstall the right side exhaust manifold and the starter.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What should be used to support the transmission for the 2007 Chevrolet Express 2500? Posted by Customer
    A:
    A transmission jack.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What should be done after securing the new engine mount for the 2008 Chevrolet Express 2500? Posted by Customer
    A:
    Lower the engine and then attach the engine mount to the frame mounting bolts, tightening them to 60 N.m (44 lb ft).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What is the next step after installing the bolts for the 2006 Chevrolet Express 1500? Posted by Customer
    A:
    Install the mounting bolts for RWD vehicles, also tightened to 50 Nm (37 ft. lbs.).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    How do you access the engine mount to the frame mounting bolts for the 2009 Chevrolet Express 2500? Posted by Customer
    A:
    Access them through the wheel well, ensuring not to use a jack under the oil pan, any sheet metal, or crankshaft balancer to avoid damage.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What should be used to support the transmission for the 2008 Chevrolet Express 2500? Posted by Customer
    A:
    A transmission jack.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What is the torque specification for the engine mount to engine mount bracket bolts for the 2007 Chevrolet Express 3500? Posted by Customer
    A:
    Tighten these bolts to 60 N.m (44 lb ft) before lowering the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount Bracket
    Q:
    What is the next step after raising the engine for the 2008 Chevrolet Express 2500? Posted by Customer
    A:
    Remove the engine mount bracket mounting nuts and take the engine mount bracket out of the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount Bracket
    Q:
    What is the torque specification for securing the engine mount to the engine mounting bolts during installation for the 2003 Chevrolet Express 3500? Posted by Customer
    A:
    50 Nm (37 ft. lbs.).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What should be done after installing the 4WD mounting bolts for the 2005 Chevrolet Express 2500? Posted by Customer
    A:
    Install the mounting bolts for RWD vehicles, also tightening them to 50 Nm (37 ft. lbs.).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What is the first step to replace the right engine mount for the 2005 Chevrolet Express 2500? Posted by Customer
    A:
    Raise and support the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What is the next step after removing the bolts for the 2010 Chevrolet Express 3500? Posted by Customer
    A:
    Take out the transmission mount from the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What is the next step after removing the engine mount to the engine mounting bolts for the 2007 Chevrolet Express 3500? Posted by Customer
    A:
    Take the engine mount out of the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What additional step is needed for the 2005 Chevrolet Express 3500? Posted by Customer
    A:
    Remove the front propeller shaft.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What is the first step for installation for the 2008 Chevrolet Express 3500? Posted by Customer
    A:
    Place the engine mount back into the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What is the next step for 4WD for the 2008 Chevrolet Express 3500? Posted by Customer
    A:
    Remove the bolts for 4WD vehicles and then remove the transmission mount from the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What should be done after tightening the mounting bolts for the 2004 Chevrolet Express 1500? Posted by Customer
    A:
    Reinstall the transmission support, remove the transmission jack, and lower the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What is the first step for installation of the new engine mount for the 2009 Chevrolet Express 3500? Posted by Customer
    A:
    Place the new engine mount into the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What additional step is needed for the 2004 Chevrolet Express 1500? Posted by Customer
    A:
    Remove the front propeller shaft.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What should be done after tightening the mounting bolts for the 2003 Chevrolet Express 3500? Posted by Customer
    A:
    Reinstall the transmission support, remove the transmission jack, and finally lower the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What should be avoided when raising the engine for the 2010 Chevrolet Express 2500? Posted by Customer
    A:
    Do not use a jack under the oil pan, sheet metal, or crankshaft balancer to avoid damage.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What should be removed to access the engine mount bracket for the 2008 Chevrolet Express 3500? Posted by Customer
    A:
    Remove the engine mount to engine mount bracket bolts.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount Bracket
    Q:
    What is the final step in the installation process for the 2009 Chevrolet Express 3500? Posted by Customer
    A:
    Reinstall the transmission support crossmember, remove the transmission jack, and lower the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    How much should the engine be raised for the 2010 Chevrolet Express 3500? Posted by Customer
    A:
    Raise the engine only enough to allow for the removal of the engine mount.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    How do you install the new transmission mount for the 2010 GMC Savana 3500? Posted by Customer
    A:
    Position the new transmission mount and install the mounting bolts for 4WD vehicles, tightening them to 50 Nm (37 lb ft).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What should be avoided when using a jack for the 2009 GMC Savana 1500? Posted by Customer
    A:
    Do not use a jack under the oil pan, any sheet metal, or crankshaft balancer to avoid damage.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount Bracket
    Q:
    What is the next step after installing the rear engine mount for the 2003 GMC Savana 3500? Posted by Customer
    A:
    Install the front engine mount to the engine mounting bolts through the wheelwell and tighten the engine mount to engine mounting bolts to 50 Nm (37 ft. lbs.).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    How should the engine mount bracket be installed for the 2007 GMC Savana 2500? Posted by Customer
    A:
    Position the engine mount bracket back onto the vehicle and install the retaining nuts.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount Bracket
    Q:
    What should be removed next for the 2005 GMC Savana 2500? Posted by Customer
    A:
    Remove the transmission support and the mounting bolts.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What is the next step after raising the engine for the 2005 GMC Savana 2500? Posted by Customer
    A:
    Remove the engine mount to the engine mounting bolts and take the engine mount out of the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What is the next step after tightening the bolts for the 2003 GMC Savana 3500? Posted by Customer
    A:
    Install the mounting bolts for RWD vehicles and tighten those to the same specification.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What additional step is needed for the 2003 GMC Savana 2500? Posted by Customer
    A:
    Remove the front propeller shaft.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What components need to be removed before taking out the engine mount for the 2003 GMC Savana 2500? Posted by Customer
    A:
    The starter and the right side exhaust manifold.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What should be avoided when using a jack for the 2009 GMC Savana 3500? Posted by Customer
    A:
    Do not use a jack under the oil pan, any sheet metal, or crankshaft balancer to avoid damage.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount Bracket
    Q:
    What is the next step after raising the engine for the 2004 GMC Savana 3500? Posted by Customer
    A:
    Remove the engine mount to the engine mounting bolts and take the engine mount out of the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    How do you install the new transmission mount for the 2009 GMC Savana 1500? Posted by Customer
    A:
    Position the new transmission mount and install the mounting bolts for 4WD vehicles, tightening them to 50 Nm (37 lb ft).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    How should the new transmission mount be installed for the 2007 GMC Savana 3500? Posted by Customer
    A:
    Position the new transmission mount and install the mounting bolts for 4WD vehicles, tightening them to 50 N.m (37 lb ft).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What is the next step after removing the transmission mount for the 2006 GMC Savana 3500? Posted by Customer
    A:
    Install the new transmission mount.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Motor And Transmission Mount
    Q:
    What is the first step to replace the left engine mount for the 2007 GMC Savana 2500? Posted by Customer
    A:
    Raise and support the vehicle, then remove the tire and wheel.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    Q:
    What are the final steps for the 2006 GMC Savana 3500? Posted by Customer
    A:
    Reinstall the front propeller shaft, followed by the tire and wheel, and finally lower the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Engine Mount
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM 21998156, Excellent Performance and Perfect Fitment

To ensure reliability, purchase GM part # 21998156 Motor Mount, Driver Side. It is sometimes referred to as GM Engine Mount, GM Motor And Transmission Mount, GM Engine Mount Bracket. 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.

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