Make sure this part fits

GM 15798951
Muffler

2001-2007 GM

Customer Questions & Expert Answers (9)
GM 15798951 Muffler
  • Part Description
    Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W
  • Replaces
    15077789, 15757987
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Vehicle Fitment

    Year Make Model Trim Engine
    2001-2002 Chevrolet Silverado 2500 HDBase, LS, LT8 Cyl 8.1 L GAS
    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 2500 HDBase, SL, SLE, SLT8 Cyl 8.1 L GAS
    2006, 2001-2002 GMC Sierra 3500Base, SL, SLE, SLT, WT8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
    2007 GMC Sierra 3500 ClassicSL, SLE, SLT, WT8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
    Warning: California's Proposition 65
  • Customer Questions & Expert Answers

    Q:
    Is this 15798951 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 15798951 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    What should be done for an 8.6 or 9.5 inch ring gear for the 2006 Chevrolet Silverado 3500? Posted by Customer
    A:
    Install the rear axle vent hose and connect the vent hose swivel clip.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    What is the first step to replace the right exhaust pipe on a 6.6L (LLY) engine for the 2006 Chevrolet Silverado 3500? Posted by Customer
    A:
    First, remove the turbocharger exhaust pipe and then the exhaust pipe bolts in the proper sequence.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Pipe
    Q:
    What needs to be done depending on the side being replaced for the 2007 Chevrolet Silverado 3500 Classic? Posted by Customer
    A:
    Either remove the exhaust muffler nuts or loosen the exhaust pipe clamp.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Pipe
    Q:
    What should be done if applicable when removing the muffler for the 2007 Chevrolet Silverado 3500 Classic? Posted by Customer
    A:
    Remove the exhaust manifold pipe gasket and gently pry up the catalytic converter coupling clip to disengage the locator button.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    What components need to be removed to take out the muffler for the 2007 GMC Sierra 3500 Classic? Posted by Customer
    A:
    Remove the exhaust muffler to exhaust manifold pipe nuts, loosen the exhaust muffler clamp, and take out the heated oxygen sensor (HO2S).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    What is the installation process for the 6.6L engine after replacing the muffler for the 2006 GMC Sierra 3500? Posted by Customer
    A:
    Install the insulators to the muffler hangers with lubricant, install a new exhaust muffler gasket, slide the muffler forward to connect it to the exhaust muffler pipe, and install the insulators to the frame hangers.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    How should the catalytic converter to muffler nuts be secured for the 2007 GMC Sierra 3500 Classic? Posted by Customer
    A:
    Install the catalytic converter to muffler nuts and tighten them to 45 N.m (33 lb ft).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Muffler
    Q:
    How do you detach the exhaust muffler from the exhaust manifold pipe for the 2007 GMC Sierra 3500 Classic? Posted by Customer
    A:
    Remove the nuts connecting the exhaust muffler to the exhaust manifold pipe, followed by the nuts connecting the exhaust manifold pipe to the exhaust manifold.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Exhaust Pipe
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Muffler 15798951 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 15798951 Muffler is available in the market under the name GM Exhaust Pipe, Muffler. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 15798951 Muffler fits certain Chevrolet Silverado 2500 HD, Silverado 3500, Silverado 3500 Classic models, as well as GMC Sierra 2500 HD, Sierra 3500, Sierra 3500 Classic models.
The original GM component designated by manufacturer part number 15798951 maintains top performance when functioning as the Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W unit. The component 15798951 is constructed from durable material and its dimensions span 113.2 x 27.7 x 14.8 inches while weighing 57.70 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Muffler, Exhaust. The part 15798951 has available replacement options 15077789, 15757987. 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.