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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 1978 Dodge Diplomat S.
Fel-Pro
Part # 13802
$5.95
SKF
Part # 19500
$6.81
SKF
Part # 18508
$16.14
Dana Spicer
Part # RD52006
$37.38
Timken
Part # 7300S
$13.82
Carlson
Part # H1526
$7.88
SKF
Part # 12350
$6.57
Schaeffler
Part # SS2565
$18.34
SKF
Part # 16404
$6.76
Pioneer Cable
Part # 748041
$53.80
Schaeffler
Part # SS2306
$12.13
Schaeffler
Part # SS2742
$18.34
Dorman
Part # 557-014
$23.72
Dorman
Part # 65270
$7.05
Timken
Part # 331228H
$18.47
Four Seasons
Part # 26700
$9.24
ATP
Part # TG-8
$12.18
GPD
Part # 1311302
$4.27
Dorman
Part # 097-022
$10.24
SKF
Part # 18708
$13.72
This page groups parts listed for the 1978 Dodge Diplomat S. 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 gaskets & seals parts for the 1978 Dodge Diplomat S. 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 Reinz, SKF, Pioneer Cable, Schaeffler, and Timken, 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.
