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Used Peterbilt 378 Truck Parts For Sale in United States

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Truck Parts (604)
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Air Intake & Filtration (41)   Air Cleaners / Air Filter Housings (20)   Air Transfer Tubes (21)Air Tanks (12)Axles & Differentials (27)   Axle Assemblies, Front (25)   Spindles / Knuckles (2)Battery Box Covers (2)Battery Boxes / Trays (12)Brakes (4)   ABS Control Modules (1)   Air Dryers (3)Cab, Body & Interior (223)   Back Windows (1)   Brake / Clutch / Gas Pedal Parts (1)   Bumpers, Front (9)   Cabs (22)   Dashboards (13)   Door Assemblies, Front (20)   Door Mirrors (22)   Door Vent Glass (1)   Door Window Regulators (2)   Door Windows (1)   Doors (36)   Fender Extensions (2)   Fenders (3)   Grilles (2)   Hood Hinges (1)   Hoods (19)   Interior Misc. Parts (11)   Mirrors (5)   Roof Fairings (1)   Seats (7)   Side View Mirrors (14)   Sleeper Doors (10)   Sleepers (4)   Steering Wheels (3)   Sun Visors (13)Cooling & HVAC (58)   A/C Condensers (1)   Blower Motors (HVAC) (2)   Coolant Tubes (1)   Cooling Assemblies (Rad., Cond., ATAAC) (5)   Fan Blades (1)   Fan Clutches (1)   Heater / AC Climate Control Parts (8)   Intercoolers & Charge Air Coolers (9)   Intercoolers (1)   Radiator Overflow Bottles / Surge Tanks (8)   Radiators (21)Electrical & Lighting (34)   Cab Wiring Harnesses (2)   Fuse Boxes & Panels (5)   Gauges (5)   Headlight Assemblies (6)   Radios (3)   Throttle Position Sensors (4)   Windshield Washer Reservoirs (3)   Windshield Wiper Arms (2)   Windshield Wiper Motors (4)Electrical Misc. Parts (1)Exhaust & Emissions (16)   Diesel Exhaust Fluid (DEF) Tanks (1)   Exhaust Assemblies (6)   Exhaust Brackets (8)   Exhaust Pipes (1)   Exhaust Parts (4)Exterior Misc. Parts (1)Frame & Chassis (30)   Brackets, Misc. (6)   Crossmembers (11)   Deck Plates / Catwalk (3)   Frame Horns (10)Fuel System (30)   Fuel / Water Separators (1)   Fuel Tank Straps & Brackets (10)   Fuel Tanks (Truck) (19)Hood Parts (8)Hydraulics & PTO (4)   Hydraulic Tanks (4)Instrument Panel Clusters (28)Miscellaneous Truck Parts (3)Power Steering Reservoirs (1)Suspension & Steering (52)   Leaf Springs, Front (12)   Leaf Springs, Rear (1)   Power Steering Assemblies (1)   Spring Hangers (1)   Steering Columns (15)   Steering Gears / Racks (2)   Steering Pumps (1)   Suspension Crossmembers / K-Frames (6)   Suspension Misc. Parts (6)   Suspensions (7)Tool Boxes (11)Truck Bodies / Boxes / Beds (1)Wheels, Tires & Hubs (2)   Mud Flap Hangers (2)
Make
Peterbilt (605)
Model
378 (605)
A limited list of models are shown. Select a category above to view all available models.
Condition
Used (605)
Model Year
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Price
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Country
United States (605)
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For Sale (605)

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Showing 301 - 325 of 605 Listings

301 - 325 of 605 listings
301 - 325 of 605 listings
Peterbilt 378 Air Tank

1996 Peterbilt 378 Air Tank

$224.98 USD
(Used) 1996 Peterbilt 378, AIR TANK (3)- Side: Passenger Right Side, Location: Passenger Side Outside Frame, Material: Steel, Dimensions: L=31", D=9", Front Ports: 1, Rear Ports: 2, Side...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1996
Stock NumberP-112372
MLS Number13868823
CategoryAir Tanks
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Left Door Window

2007 Peterbilt 378 Left Door Window

$134.99 USD
2007 PETERBILT 378 Used Driver Side Door Glass (Local Pick Up Only) We Ship Worldwide! Call Now For A Shipping Estimate! Make: PETERBILT Model: 378
ConditionUsed
Fits To Make(s)PETERBILT
Fits To Model(s)378
Will Fit Year(s)2007
SideLEFT
Stock Number6590
MLS Number9733019
CategoryDoor Windows
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
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Peterbilt 378 Radio

2004 Peterbilt 378 Radio

$89.99 USD
(Used) 2004 Peterbilt 378, RADIO- Type: Delphi, Six Presets, Plays: AM/FM, Disc, AUX, Bluetooth, For more information about this item, give us a call.We ship Worldwide! (CRG HEAVY TRUCK...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
Stock NumberP-39582
MLS Number11875167
CategoryRadios
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Sun Visor

1998 Peterbilt 378 Sun Visor

$69.99 USD
(USED) 1998 Peterbilt 378 - Sun Visor - Side Driver Side. Material: Vinyl. Color: Gray. Type: Adjustable/ Sliding. For more information about this item, give us a call. We ship Worldwide!....
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Stock NumberP-24729
MLS Number10827685
CategorySun Visors
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Sun Visor

1998 Peterbilt 378 Sun Visor

$69.99 USD
(USED) 1998 Peterbilt 378 - Sun Visor - Side: Passenger Side. Material: Vinyl. Color: Gray. Type: Adjustable/ Sliding. For more information about this item, give us a call. We ship...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Stock NumberP-24730
MLS Number10827686
CategorySun Visors
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Hydraulic Tank

2004 Peterbilt 378 Hydraulic Tank

Contact for price
(Used) 2004 Peterbilt 378, HYDRAULIC TANK- Side: Driver Side, Material: Metal, Color: Black, Shape: Rectangular, Dimensions: L=33”, W=19", H=23", Reference images for condition, For more...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
Stock NumberP-39520
MLS Number11868589
CategoryHydraulic Tanks
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Roof Fairing

2004 Peterbilt 378 Roof Fairing

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(Used) 2004 Peterbilt 378, EXTERIOR SUN VISOR- Side: Center Of Truck, Color: Chrome, Material: Chrome, For more information about this item,give us a call. We ship Worldwide! (CRG HEAVY...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
Stock NumberP-39557
MLS Number11868639
CategoryRoof Fairings
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Sun Visor

2004 Peterbilt 378 Sun Visor

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(Used) 2004 Peterbilt 378, SUN VISOR- Side: Driver Side, Color: Brown, Material: Vinyl, Type: Adjustable, For more information about this item, give us a call.We ship Worldwide! (CRG HEAVY...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
Stock NumberP-39585
MLS Number11875170
CategorySun Visors
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Sun Visor

2004 Peterbilt 378 Sun Visor

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(Used) 2004 Peterbilt 378, SUN VISOR- Side: Passenger Side, Color: Brown, Material: Vinyl, Type: Adjustable, For more information about this item, give us a call.We ship Worldwide! (CRG...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
Stock NumberP-39586
MLS Number11875171
CategorySun Visors
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Instrument Panel Cluster

2001 Peterbilt 378 Instrument Panel Cluster

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(Used) 2001 Peterbilt 378, INSTRUMENT CLUSTER- Gauges: Fuel Level, Air Pressure, Main Trans Oil Temp, Battery Volts, Manifold PSI, Front Driver Oil Temp, Air Pressure, Exhaust Temp, Rear...
ConditionUsed
Engine ModelCaterpillar C12
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberP-47609
MLS Number12038746
CategoryInstrument Panel Clusters
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Crossmember

1998 Peterbilt 378 Crossmember

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(Used) 1998 Peterbilt 378, FRAME RAILS- Side: Driver Left Side, Material: Aluminum, Length: 21' 6", Height: 10 1/2", Width: 3 1/2", For more information about this item, give us a call. We...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Stock NumberP-54207
MLS Number12197202
CategoryCrossmembers
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Crossmember

1998 Peterbilt 378 Crossmember

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(Used) 1998 Peterbilt 378, FRAME RAILS- Side: Passenger Right Side, Material: Aluminum, Length: 21' 6", Height: 10 1/2", Width: 3 1/2", For more information about this item, give us a call...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Stock NumberP-54210
MLS Number12197205
CategoryCrossmembers
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Crossmember

1998 Peterbilt 378 Crossmember

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(Used) 1998 Peterbilt 378, CROSSMEMBER- Location: Front, Material: Aluminum, Dimensions: L=34", H=4", W=5.5", For more information about this item, give us a call. We ship Worldwide! (CRG...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Stock NumberP-54214
MLS Number12197209
CategoryCrossmembers
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Crossmember

1998 Peterbilt 378 Crossmember

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(Used) 1998 Peterbilt 378, CROSSMEMBER- Location: Mid Front, Material: Aluminum, Dimensions: L=34", H=4", W=5.5", For more information about this item, give us a call. We ship Worldwide!...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Stock NumberP-54216
MLS Number12197211
CategoryCrossmembers
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
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Peterbilt 378 Crossmember

1998 Peterbilt 378 Crossmember

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(Used) 1998 Peterbilt 378, CROSSMEMBER- Location: Rear, Material: Aluminum, Dimensions: L=34", H=4", W=5.5", For more information about this item, give us a call. We ship Worldwide! (CRG...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Stock NumberP-54219
MLS Number12197214
CategoryCrossmembers
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
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Peterbilt 378 Crossmember

1998 Peterbilt 378 Crossmember

Contact for price
(Used) 1998 Peterbilt 378, CROSSMEMBER- Location: Rear, Material: Aluminum, Dimensions: L=34", H=4", W=5.5", For more information about this item, give us a call. We ship Worldwide! (CRG...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Stock NumberP-54221
MLS Number12197216
CategoryCrossmembers
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
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Peterbilt 378 Air Dryer

1998 Peterbilt 378 Air Dryer

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(Used) 1998 Peterbilt 378 AIR DRYER - For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Stock NumberP-55713
MLS Number12233414
CategoryAir Dryers
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Cab Assembly

2001 Peterbilt 378 Cab Assembly

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(Used) 2001 Peterbilt 378, CAB- Color: Blue, Type: Day Cab, Engine: Caterpillar, Less Interior, Less Doors, For more information about this item, give us a call. We ship Worldwide! (CRG...
ConditionUsed
Engine ModelCaterpillar TBD
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberP-72057
MLS Number12630456
CategoryCabs
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Hydraulic Tank

2001 Peterbilt 378 Hydraulic Tank

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(Used) 2001 Peterbilt 378, HYDRAULIC TANK- Side: Rear, Material: Aluminum, Shape: Rectangular, Dimensions: L=36", H=16.5", W=14", For more information about this item, give us a call. We...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberP-72236
MLS Number12630629
CategoryHydraulic Tanks
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Right Air Cleaner / Air Filter Housing

2001 Peterbilt 378 Right Air Cleaner / Air Filter Housing

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(Used) 2001 Peterbilt 378, AIR CLEANER- Side: Passenger Right Side, Color: Grey, Material: Steel, Engine: Caterpillar, Dimensions: L=28", D=12", For more information about this item, give...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
SideRIGHT
Stock NumberP-72260
MLS Number12630653
CategoryAir Cleaners / Air Filter Housings
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Radiator Overflow Bottle / Surge Tank

2001 Peterbilt 378 Radiator Overflow Bottle / Surge Tank

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(Used) 2001 Peterbilt 378, COOLANT RESERVOIR/ RADIATOR OVERFLOW BOTTLE- Location: On Radiator, Material: Steel, Dimensions: L=24", H=12.5", For more information about this item, give us a...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberP-72262
MLS Number12630655
CategoryRadiator Overflow Bottles / Surge Tanks
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Left Seat

2001 Peterbilt 378 Left Seat

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(Used) 2001 Peterbilt 378, SEAT- Side: Driver Left Side, Color: Grey, Material: Fabric, Type: Air Ride, For more information about this item, give us a call. We ship Worldwide! (CRG...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
SideLEFT
Stock NumberP-72277
MLS Number12630668
CategorySeats
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Right Seat

2001 Peterbilt 378 Right Seat

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(Used) 2001 Peterbilt 378, SEAT- Side: Passenger Right Side, Color: Brown, Material: Vinyl, Type: Manual, For more information about this item, give us a call. We ship Worldwide! (CRG...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
SideRIGHT
Stock NumberP-72278
MLS Number12630669
CategorySeats
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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