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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 2003 Chevrolet Silverado 3500 LS.
Aisin
Part # RPGM-005
$48.09
Rostra
Part # 66-0081
$70.71
Hella
Part # 9005SB
$9.09
Sunsong
Part # 3401292
$17.06
Walker Products
Part # 225-1017
$37.75
Holstein Parts
Part # 2CAM0201
$69.64
Standard Motor Products
Part # PSW21
$126.90
Dorman
Part # 10-0107B
$465.11
Standard Motor Products
Part # SC168
$32.45
URO Parts
Part # GM0616709
$31.40
Eagle Eyes
Part # GM269-B001LR
$87.80
Dorman
Part # 931-565
$242.78
Hella
Part # 168
$4.21
Collision
Part # GM1268103
$73.25
Dorman
Part # 700-251
$19.42
Dorman
Part # 57317
$89.36
Collision
Part # GM1066167
$19.97
Continental
Part # WL41579
$68.38
GPD
Part # 1811659
$44.62
Delphi
Part # PS10000
$66.12
This page groups parts listed for the 2003 Chevrolet Silverado 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 wiring & electrical parts for the 2003 Chevrolet Silverado 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 Dorman, Standard Motor Products, Walker Products, Hella, and GPD, 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.
