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GM 21999771
Outlet Duct

2006-2009 Cadillac STS

Customer Questions & Expert Answers (5)
GM 21999771 Outlet Duct
GM 21999771 Outlet Duct
  • Part Description
    Duct, Air Cleaner And Silencer
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Vehicle Fitment

    Year Make Model Trim Engine
    2006-2009 Cadillac STSV8 Cyl 4.4 L GAS
    Warning: California's Proposition 65
  • Customer Questions & Expert Answers

    Q:
    Can you help me check if this 21999771 is the right part for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 21999771 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    What is the torque specification for tightening the air cleaner duct clamps for the 2009 Cadillac STS? Posted by Customer
    A:
    Tighten the air cleaner duct clamps to 4 Nm (35 lb in).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Air Hose
    Q:
    What is the final step after installation for the 2008 Cadillac STS? Posted by Customer
    A:
    Reinstall the front compartment sight shields as needed.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Air Hose
    Q:
    How do you install the new air cleaner duct for the 2006 Cadillac STS? Posted by Customer
    A:
    Position the new air cleaner duct and tighten the clamps at the supercharger inlet duct and air cleaner housing cover to 3 N.m (27 lb in).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Air Hose
    Q:
    What should be done after removing the sight shields for the 2007 Cadillac STS? Posted by Customer
    A:
    Detach the positive crankcase ventilation (PCV) hose from the air cleaner duct resonator and loosen the air cleaner duct clamps before removing the air cleaner duct.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Air Hose
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Outlet Duct 21999771 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 21999771 Outlet Duct is available in the market under the name GM Air Intake Coupling, Air Hose. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 21999771 Outlet Duct fits certain Cadillac STS models.
The original GM component designated by manufacturer part number 21999771 maintains top performance when functioning as the Duct, Air Cleaner And Silencer unit. The component 21999771 is constructed from durable material and its dimensions span 11.2 x 9.6 x 5.4 inches while weighing 1.40 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. The part 21999771 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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