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GM 15798956
Muffler

2001-2007 GM

Customer Questions & Expert Answers (10)
GM 15798956 Muffler
  • Part Description
    Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W
  • Replaces
    15147364, 15199833, 15070412, 15113075
  • 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 Number15798956
    Part DescriptionMuffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W
    Other NamesMuffler, Exhaust
    Item Dimensions136.5 x 32.3 x 17.3 inches
    Item Weight75.20 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces15147364, 15199833, 15070412, 15113075
    ManufacturerGeneral Motors
    SKU15798956
    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
    2001-2002 Chevrolet Silverado 1500 HDLS, LT8 Cyl 6.0 L GAS
    2001-2002 Chevrolet Silverado 2500Base, LS, LT8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
    2005-2006, 2001-2002 Chevrolet Silverado 2500 HDBase, LS, LT, WT8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
    2007 Chevrolet Silverado 2500 HD ClassicLS, LT, WT8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
    2005-2006, 2001-2002 Chevrolet Silverado 3500Base, LS, LT, WT8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
    2007 Chevrolet Silverado 3500 ClassicLS, LT, WT8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
    2001-2002 GMC Sierra 1500C3, Denali8 Cyl 6.0 L GAS
    2001-2002 GMC Sierra 1500 HDSLE, SLT8 Cyl 6.0 L GAS
    2001-2002 GMC Sierra 2500Base, SL, SLE, SLT8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
    2005-2006, 2001-2002 GMC Sierra 2500 HDBase, SL, SLE, SLT, WT8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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  • Customer Questions & Expert Answers

    Q:
    Is this 15798956 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 15798956 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    What is the procedure if the muffler is not being replaced as an assembly for the 2006 Chevrolet Silverado 3500? Posted by Customer
    A:
    Replace the band clamp by marking its position on the intermediate exhaust pipe, grinding the weld to remove it, and installing a new band clamp.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    What steps should be performed for a 10.5 inch ring gear for the 2007 Chevrolet Silverado 3500 Classic? Posted by Customer
    A:
    Perform the same steps as for the 8.6 or 9.5 inch ring gear.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    What are the torque specifications for the exhaust muffler nuts or exhaust pipe clamp for the 2007 Chevrolet Silverado 3500 Classic? Posted by Customer
    A:
    Tighten the exhaust muffler nuts to 40 Nm (30 ft. lbs.) or install a new exhaust pipe clamp and tighten to 44 Nm (33 ft. lbs.).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Pipe
    Q:
    What is the next step after positioning the exhaust pipe to the turbocharger for the 2006 Chevrolet Silverado 3500? Posted by Customer
    A:
    Position the exhaust pipe with a NEW gasket to the exhaust manifold, aligning the tab to face outward, and loosely install the bolts.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Pipe
    Q:
    What should be done after installing the exhaust manifold pipe for the 2007 GMC Sierra 3500 Classic? Posted by Customer
    A:
    Reinstall any necessary exhaust muffler insulators, then raise the transmission slightly with the jack.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Pipe
    Q:
    What is the next step after addressing the vent hose for the 2007 GMC Sierra 3500 Classic? Posted by Customer
    A:
    Remove the lower bolts and nuts of the rear shock absorber, then lower the rear axle using the adjustable jack stands.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    What should be done after supporting the transmission for the 2005 GMC Sierra 3500? Posted by Customer
    A:
    Remove the transmission mount to transmission support nuts, raise the transmission off the support, and take out the transmission support crossmember bolts and the crossmember itself.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Pipe
    Q:
    What should be done for the 6.6L engine regarding the exhaust muffler for the 2005 GMC Sierra 3500? Posted by Customer
    A:
    Remove the exhaust muffler nuts and support the muffler.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    What should be done during the installation of the new muffler assembly for the 2007 GMC Sierra 3500 Classic? Posted by Customer
    A:
    Lubricate the 4 insulators again, position and install the muffler assembly with assistance, and reinstall the insulators (1-4).
    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 15798956, Excellent Performance and Perfect Fitment

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