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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 2018 GMC Sierra 2500 HD Base.
Wehrli
Part # WCF100742-GB
$174.08
Dorman
Part # 667-439
$68.71
Dayco
Part # DP990
$154.41
Elring
Part # 868.630
$5.19
Delphi
Part # TS10076
$23.96
Walker Products
Part # 211-1118
$12.51
Walker Products
Part # 211-2015
$11.81
Gates
Part # 34198S
$22.83
Wehrli
Part # WCF100433-GRY
$580.99
Holstein Parts
Part # 2CTS0318
$10.47
US Motor Works
Part # MCK1053
$166.53
Dorman
Part # 620-996
$117.03
Motorad
Part # 2523-160
$17.09
Vernet
Part # TH2107.86J
$9.32
Fel-Pro
Part # 35635
$3.12
GPD
Part # 1712496
$15.49
Collision
Part # GM1225365C
$113.60
CSF
Part # 10724
$117.38
Spectra Premium
Part # 7-4739
$147.91
Collision
Part # GM1225387
$142.83
This page groups parts listed for the 2018 GMC Sierra 2500 HD Base. 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 2018 GMC Sierra 2500 HD Base. 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.
