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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 2003 Chevrolet Express 3500 LS.
Standard Motor Products
Part # S-926
$56.23
Delphi
Part # ES20094
$64.99
Walker Exhaust
Part # 83509
$333.23
Dorman
Part # 645-668
$50.66
NGK
Part # 21514
$82.03
URO Parts
Part # GM1321182
$35.43
Walker Products
Part # 350-34415
$50.90
Walker Products
Part # 350-34076
$40.98
Walker Products
Part # 250-241119
$58.60
Walker Products
Part # 250-24339
$50.12
AP Exhaust
Part # 645853
$320.10
Denso
Part # 234-4651
$52.08
AP Exhaust
Part # H300
$9.10
Bosch
Part # 15894
$44.40
Bosch
Part # 15895
$51.56
Walker Exhaust
Part # 31718
$15.50
Eastern Catalytic
Part # 50399
$359.92
AP Exhaust
Part # 608227
$125.46
Four Seasons
Part # 75788
$57.52
Dorman
Part # 611-202
$25.13
This page groups parts listed for the 2003 Chevrolet Express 3500 LS. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.
We offer a wide selection of exhaust systems parts for the 2003 Chevrolet Express 3500 LS. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.
We carry parts from trusted brands including AP Exhaust, Walker Exhaust, Dorman, Walker Products, and Eastern Catalytic, plus many more. Filter by brand to find your preferred manufacturer.
Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.
Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.
