2003 GMC Sierra 2500 HD Exhaust Muffler
Browse our online catalogue to find original replacement Exhaust Mufflers specifically designed to fit a 2003 GMC Sierra 2500 HD.
2003 GMC Sierra 2500 HD Exhaust Muffler
$338.93
$213.61
10+ In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 337.8cm (133.0in.);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 337.8cm (133.0in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$338.93
$213.61
10+ In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 364.5cm (143.5in.);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 364.5cm (143.5in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$338.93
$213.61
10+ In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 388.6cm (153.0in.);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 388.6cm (153.0in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$338.93
$213.61
10+ In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 337.8cm (133.0in.);
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 337.8cm (133.0in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$338.93
$213.61
10+ In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 364.5cm (143.5in.);
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 364.5cm (143.5in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$338.93
$213.61
10+ In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 388.6cm (153.0in.);
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 388.6cm (153.0in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$336.31
In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 337.8cm (133.0in.);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 337.8cm (133.0in.);
Vehicle Fitment Notes:
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
2003 GMC Sierra 2500 HD Exhaust Muffler
$336.31
In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 364.5cm (143.5in.);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 364.5cm (143.5in.);
Vehicle Fitment Notes:
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
2003 GMC Sierra 2500 HD Exhaust Muffler
$336.31
In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 388.6cm (153.0in.);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 388.6cm (153.0in.);
Vehicle Fitment Notes:
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
2003 GMC Sierra 2500 HD Exhaust Muffler
$336.31
In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 400.1cm (157.5in.);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 400.1cm (157.5in.);
Vehicle Fitment Notes:
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
2003 GMC Sierra 2500 HD Exhaust Muffler
$336.31
In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 337.8cm (133.0in.);
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 337.8cm (133.0in.);
Vehicle Fitment Notes:
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
2003 GMC Sierra 2500 HD Exhaust Muffler
$336.31
In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 364.5cm (143.5in.);
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 364.5cm (143.5in.);
Vehicle Fitment Notes:
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
2003 GMC Sierra 2500 HD Exhaust Muffler
$336.31
In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 388.6cm (153.0in.);
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 388.6cm (153.0in.);
Vehicle Fitment Notes:
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
2003 GMC Sierra 2500 HD Exhaust Muffler
$336.31
In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 400.1cm (157.5in.);
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 400.1cm (157.5in.);
Vehicle Fitment Notes:
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts 3 (in) Inlet and Outlet
2003 GMC Sierra 2500 HD Exhaust Muffler
$170.68
Limited Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 337.8cm (133.0in.);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 337.8cm (133.0in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$170.68
Limited Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 364.5cm (143.5in.);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 364.5cm (143.5in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$170.68
Limited Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 388.6cm (153.0in.);
Engine Base: 6.0L 5967cc 364ci V8 (4.00x3.62; 101.6x92.0); Wheel Base: 388.6cm (153.0in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$170.68
Limited Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 337.8cm (133.0in.);
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 337.8cm (133.0in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$170.68
Limited Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 364.5cm (143.5in.);
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 364.5cm (143.5in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$170.68
Limited Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Pick-Up: Ready in 1 Hour Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 388.6cm (153.0in.);
Engine Base: 8.1L 496ci V8 (4.25x4.37; 108.0x111.0); Wheel Base: 388.6cm (153.0in.);
Vehicle Fitment Notes:
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
with 2.5 (in) Muffler Inlet with Federal Emissions System except Low Emission Vehicle (LEV) If welded assembly, replace all required parts with Small Diameter Muffler Use Reducer Bushing 41974 to connect with OE Converter Pipe
2003 GMC Sierra 2500 HD Exhaust Muffler
$257.89
$194.84
In Stock
Condition: New
Ships: Friday Feb. 20th
Pick-Up: Ready in 2-4 Hours Friday Feb. 20th
Pick-Up: Ready in 2-4 Hours Friday Feb. 20th
Required Per Vehicle: 1
Made in USA
Fits: 2003 GMC Sierra 2500 HD
Equipped With:
Engine Base: 6.6L 6599cc 403ci V8 (4.06x3.90; 103.0x99.0);
Engine Base: 6.6L 6599cc 403ci V8 (4.06x3.90; 103.0x99.0);
Vehicle Fitment Notes:
If Welded Assembly, Replace All Required Parts
If Welded Assembly, Replace All Required Parts