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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 2020 Ram 3500 Big Horn.
Diode Dynamics
Part # DD0142P
$115.15
Westin
Part # 40-23005
$403.99
Dee Zee
Part # DZ95062
$37.58
Hella
Part # 2825
$0.23
Diode Dynamics
Part # DD0058P
$115.15
Diode Dynamics
Part # DD0027P
$38.35
Diode Dynamics
Part # DD0023P
$28.11
Diode Dynamics
Part # DD0022P
$28.11
Diode Dynamics
Part # DD0463P
$168.27
Diode Dynamics
Part # DD0115P
$115.15
Diode Dynamics
Part # DD0035P
$22.99
Diode Dynamics
Part # DD0021P
$28.11
Diode Dynamics
Part # DD0108P
$84.43
Hella
Part # 921
$13.12
Diode Dynamics
Part # DD0468P
$168.27
Hella
Part # 2825SB
$13.32
Hella
Part # 3157
$0.91
Diode Dynamics
Part # DD0055P
$63.95
Diode Dynamics
Part # DD0020P
$28.11
Diode Dynamics
Part # DD0113P
$63.95
This page groups parts listed for the 2020 Ram 3500 Big Horn. 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 lighting & electrical parts for the 2020 Ram 3500 Big Horn. 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 Diode Dynamics, Hella, Dee Zee, BackRack, and Baja Designs, 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.
