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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 1978 GMC Caballero Diablo.
Mahle
Part # S40564CP
$17.24
Timken
Part # 88176
$12.40
Cometic Gasket
Part # C5692-030
$102.25
Cometic Gasket
Part # C5693-040
$102.25
Dorman
Part # 785-422D
$7.95
Dorman
Part # 264-118
$87.46
Hotchkis
Part # 1707
$54.75
Cometic Gasket
Part # C5692-045
$102.25
Cometic Gasket
Part # C5691-060
$131.62
COMP Cams
Part # K69-235-4
$487.12
COMP Cams
Part # SK69-400-8
$1217.33
Cometic Gasket
Part # PRO1003T-066
$276.35
Fel-Pro
Part # 2601000
$57.57
Sealed Power
Part # 8-2555CP
$44.35
Clevite
Part # MS960P
$96.15
COMP Cams
Part # 3036CPG
$31.95
COMP Cams
Part # CL69-234-4
$452.43
Edelbrock
Part # 4240
$87.82
Dorman
Part # 785-422
$8.37
Sealed Power
Part # 5085M
$64.85
This page groups parts listed for the 1978 GMC Caballero Diablo. 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 1978 GMC Caballero Diablo. 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 COMP Cams, Cometic Gasket, Edelbrock, Mahle OE, and Fel-Pro, 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.
