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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 2021 Ram 3500 Limited Longhorn.
Spectra Premium
Part # LO164
$12.30
Continental
Part # FP22060S
$148.55
Delphi
Part # FG2865
$262.59
Spectra Premium
Part # LO186
$26.38
Fleece Performance
Part # FPE-SF-CUMM-1121
$412.35
Victor Reinz
Part # GS33682
$41.14
Fleece Performance
Part # FPE-34562
$869.31
BD Diesel
Part # 1050371
$131.56
Motorad
Part # 12422S
$22.43
Standard Motor Products
Part # LDP15
$40.75
Dee Zee
Part # DZ91754S
$868.17
Fleece Performance
Part # FPE-SF-CUMM-2024-50
$412.35
GB Remanufacturing
Part # 7-040
$84.93
Dee Zee
Part # DZ92556NS
$601.45
Dee Zee
Part # DZ91752X
$767.80
Standard Motor Products
Part # S-1410
$43.60
Dee Zee
Part # DZ92756B
$1396.74
Bosch
Part # 0445124047
$762.07
GB Remanufacturing
Part # 7-045
$89.50
Standard Motor Products
Part # S2860
$12.02
This page groups parts listed for the 2021 Ram 3500 Limited Longhorn. 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 fuel injectors & pumps parts for the 2021 Ram 3500 Limited Longhorn. 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 Dee Zee, Titan Fuel Tanks, GB Remanufacturing, Delphi, and Spectra Premium, 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.
