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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 2003 Chevrolet Silverado 1500 HD LS.
ACL
Part # 1B663H-11
$32.26
Eaton
Part # 26882-00S
$307.99
Clevite
Part # MS2199HC
$226.48
NGK
Part # 51033
$61.81
FTI Performance
Part # SRLT48082-3
$1554.75
Motul
Part # 104001
$264.80
Clevite
Part # MS2199HX
$194.04
Cometic Gasket
Part # C5489-036
$97.74
NGK
Part # 3784
$13.74
NGK
Part # 7397
$36.10
Clevite
Part # CB1776A30
$17.15
SCT Performance
Part # 30604
$23.75
COMP Cams
Part # 54-702-11
$442.84
FTI Performance
Part # SRLS48082
$1195.71
Clevite
Part # CB663A20
$15.87
Royal Purple
Part # 05320
$286.99
Victor Reinz
Part # OS32241
$48.88
FTI Performance
Part # SRLT46391-3
$1554.75
Cometic Gasket
Part # C15496-051
$97.74
ACL
Part # 5M7298HXC-STD
$253.34
This page groups parts listed for the 2003 Chevrolet Silverado 1500 HD 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 engine & drivetrain parts for the 2003 Chevrolet Silverado 1500 HD 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 Cometic Gasket, Yukon Gear & Axle, King Engine Bearings, Clevite, and ACL, 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.
