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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 1978 Chevrolet K20 Silverado.
GPD
Part # 2311430
$53.78
Standard Motor Products
Part # TC441
$65.28
Sunsong
Part # 3401648
$20.43
Standard Motor Products
Part # HP4360
$25.09
Standard Motor Products
Part # S-78
$7.45
Collision
Part # GM1310104
$18.60
Denso
Part # 4715
$13.52
Dorman
Part # 74323
$8.70
ATP
Part # JMS-9
$356.58
Standard Motor Products
Part # NS-15
$15.65
Standard Motor Products
Part # VR-111
$21.39
Standard Motor Products
Part # TW-45
$45.09
Dorman
Part # 77047
$43.22
Denso
Part # 4509
$13.54
Walker Products
Part # 924-1553
$59.30
Collision
Part # GM1320103
$61.49
Skyward Automotive
Part # SKDR32T
$20.73
Walker Products
Part # 924-1512
$46.46
TerePower
Part # N7127-9
$152.15
Standard Motor Products
Part # EFL-552
$9.71
This page groups parts listed for the 1978 Chevrolet K20 Silverado. 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 1978 Chevrolet K20 Silverado. 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 Standard Motor Products, Dorman, ATP, Rostra, and Four Seasons, 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.
