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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 2019 GMC Sierra 3500 HD SLT.
Spectra Premium
Part # 7-4739
$147.67
BD Diesel
Part # 1061532
$102.73
Motorad
Part # 448-180
$14.22
Elring
Part # 792.640
$9.05
Dorman
Part # 54218
$18.99
Vernet
Part # TH2107.86J
$13.32
Dayco
Part # 70036
$24.72
GPD
Part # 2411007
$58.12
Four Seasons
Part # 66017
$52.86
Wehrli
Part # WCF100742-BB
$174.08
Standard Motor Products
Part # TX89T
$14.82
Gates
Part # 42229
$146.27
Wehrli
Part # WCF100188-RED
$219.90
Dorman
Part # 902-2081
$18.52
Wehrli
Part # WCF100433-RED
$580.99
Fel-Pro
Part # 35720
$6.83
Motorad
Part # 447-185
$16.88
Fel-Pro
Part # 72435
$2.70
Four Seasons
Part # 73340
$33.05
GPD
Part # 1712496
$19.46
This page groups parts listed for the 2019 GMC Sierra 3500 HD SLT. 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 cooling system parts for the 2019 GMC Sierra 3500 HD SLT. 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 Wehrli, Dorman, Motorad, Four Seasons, and Mishimoto, 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.
