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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 2021 Ram 1500 Classic Special Service.
King Engine Bearings
Part # CR8048SM0.5
$71.35
AMP Research
Part # 19-03977-97L
$149.99
King Engine Bearings
Part # CR8032SM0.5
$55.27
King Engine Bearings
Part # CR8032XPN0.5
$155.51
King Engine Bearings
Part # CR8048SM0.75
$75.11
King Engine Bearings
Part # CR8032SM
$52.07
King Engine Bearings
Part # CR8032SM1.0
$63.39
Nitrous Express
Part # 20990-10
$1127.90
King Engine Bearings
Part # CR8032XPN0.25
$155.51
King Engine Bearings
Part # CR8032SM0.75
$63.39
Nitrous Express
Part # 20990-12
$1859.64
King Engine Bearings
Part # CS5512BB
$65.40
Reinz
Part # 19-10092-01
$46.44
Clevite
Part # CB1808A50MM
$19.33
SCT Performance
Part # 30604
$23.75
King Engine Bearings
Part # CR8048SM0.25
$71.35
Royal Purple
Part # 05320
$286.99
AMP Research
Part # 19-04279-XTA
$99.99
AMP Research
Part # 19-04513-91
$85.99
AMP Research
Part # 21-04054-80.5
$249.99
This page groups parts listed for the 2021 Ram 1500 Classic Special Service. 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 2021 Ram 1500 Classic Special Service. 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 King Engine Bearings, Fel-Pro, Victor Reinz, Yukon Gear & Axle, and Dorman, 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.
