Make sure this part fits

GM 20920637
Muffler & Pipe

2009-2013 GM

Customer Questions & Expert Answers (5)
GM 20920637 Muffler & Pipe
  • Part Description
    Muffler, Exhaust; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe
  • Replaces
    20898762, 25940543
  • 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 Number20920637
    Part DescriptionMuffler, Exhaust; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe
    Other NamesMuffler
    Item Dimensions129.4 x 32.3 x 14.9 inches
    Item Weight303.60 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces20898762, 25940543
    ManufacturerGeneral Motors
    SKU20920637
    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
    2009-2013 Chevrolet Silverado 1500LS, LT, LTZ, WT, XFE8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    2009-2013 GMC Sierra 1500SL, SLE, SLT, WT, XFE8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
  • Customer Questions & Expert Answers

    Q:
    Can you help me check if this 20920637 is the right part for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 20920637 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    What should be repeated for a 5.3L or 6.0L engine for the 2009 Chevrolet Silverado 1500? Posted by Customer
    A:
    Repeat the lubrication and removal process for the insulators (1, 2).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    What is the next step after removing the vent hose for the 2010 Chevrolet Silverado 1500? Posted by Customer
    A:
    Remove the rear shock absorber lower bolts and nuts, lower the rear axle if necessary, and then remove the exhaust muffler to exhaust manifold pipe nuts and loosen the exhaust muffler clamp.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    How should the muffler assembly be removed for the 2010 GMC Sierra 1500? Posted by Customer
    A:
    Pull the muffler assembly rearward until the flange clears the front frame crossmember, then remove it toward the front of the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    What should be installed under the rear axle if necessary for the 2009 GMC Sierra 1500? Posted by Customer
    A:
    Install adjustable jack stands under the rear axle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM 20920637, Excellent Performance and Perfect Fitment

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