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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 1990 GMC K1500 Sierra.
Cometic Gasket
Part # C5299AFM
$14.21
Fel-Pro
Part # ES72671
$12.19
US Motor Works
Part # 22154
$66.99
Motorad
Part # ST16V
$13.00
Dorman
Part # 800-401.5
$41.13
Gates
Part # 21441
$20.33
GPD
Part # 2911284
$85.89
Motorad
Part # 3003
$20.15
Motorad
Part # 5200-160
$16.15
Sunsong
Part # 3401806
$12.30
Dorman
Part # 604-991
$42.14
Motorad
Part # 332-195
$12.78
Spectra Premium
Part # CU434
$135.50
Four Seasons
Part # 36976
$36.71
US Motor Works
Part # MCK1036
$117.21
Beck Arnley
Part # 158-0536
$22.77
Standard Motor Products
Part # TX3K
$18.76
Four Seasons
Part # 5295NK
$297.46
GPD
Part # 2811792
$50.68
Standard Motor Products
Part # FLS-3
$8.67
This page groups parts listed for the 1990 GMC K1500 Sierra. 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 1990 GMC K1500 Sierra. 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 Gates, Motorad, Dorman, Four Seasons, and Standard Motor Products, 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.
