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Peterbilt 378 Truck Parts For Sale in United States

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Truck Parts (582)
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Air Intake & Filtration (39)   Air Cleaners / Air Filter Housings (19)   Air Transfer Tubes (20)Air Tanks (13)Axles & Differentials (27)   Axle Assemblies, Front (25)   Spindles / Knuckles (2)Battery Box Covers (2)Battery Boxes / Trays (12)Brakes (3)   Air Dryers (3)Cab, Body & Interior (219)   Back Windows (1)   Bumpers, Front (14)   Cabs (21)   Dashboards (13)   Door Assemblies, Front (20)   Door Mirrors (22)   Door Vent Glass (1)   Door Window Regulators (2)   Door Windows (1)   Doors (35)   Fender Extensions (2)   Fenders (2)   Grilles (2)   Hood Hinges (1)   Hoods (19)   Interior Misc. Parts (11)   Mirrors (5)   Roof Fairings (1)   Seats (7)   Side View Mirrors (13)   Sleeper Doors (6)   Sleepers (4)   Steering Wheels (3)   Sun Visors (13)Cooling & HVAC (58)   A/C Condensers (1)   Blower Motors (HVAC) (2)   Cooling Assemblies (Rad., Cond., ATAAC) (5)   Fan Blades (1)   Fan Clutches (1)   Heater / AC Climate Control Parts (7)   Intercoolers & Charge Air Coolers (9)   Intercoolers (1)   Radiator Overflow Bottles / Surge Tanks (8)   Radiators (23)Electrical & Lighting (32)   Cab Wiring Harnesses (1)   Fuse Boxes & Panels (6)   Gauges (4)   Headlight Assemblies (6)   Radios (3)   Throttle Position Sensors (4)   Windshield Washer Reservoirs (3)   Windshield Wiper Arms (2)   Windshield Wiper Motors (3)Electrical Misc. Parts (1)Exhaust & Emissions (17)   Exhaust Assemblies (4)   Exhaust Brackets (12)   Exhaust Pipes (1)   Exhaust Parts (4)Exterior Misc. Parts (1)Frame & Chassis (24)   Brackets, Misc. (6)   Crossmembers (7)   Deck Plates / Catwalk (1)   Frame Horns (9)   Frames (1)Fuel System (28)   Fuel / Water Separators (1)   Fuel Tank Straps & Brackets (9)   Fuel Tanks (Truck) (18)Hood Parts (8)Hydraulics & PTO (3)   Hydraulic Tanks (3)Instrument Panel Clusters (25)Miscellaneous Truck Parts (3)Power Steering Reservoirs (1)Suspension & Steering (53)   Leaf Springs, Front (12)   Power Steering Assemblies (1)   Spring Hangers (1)   Steering Columns (16)   Steering Gears / Racks (2)   Steering Pumps (1)   Suspension Crossmembers / K-Frames (6)   Suspension Misc. Parts (7)   Suspensions (7)Tool Boxes (8)Truck Bodies / Boxes / Beds (1)Wheels, Tires & Hubs (1)   Mud Flap Hangers (1)
Make
Peterbilt (583)
Model
378 (583)
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Showing 251 - 275 of 583 Listings

251 - 275 of 583 listings
251 - 275 of 583 listings
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-54221
MLS Number12197216
CategoryCrossmembers
Last Updated5/13/2026
Location
Elkton, MD, US
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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
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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
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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
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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
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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
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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
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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
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Peterbilt 378 Steering Column

2001 Peterbilt 378 Steering Column

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(Used) 2001 Peterbilt 378, STEERING COLUMN- Type: Cruise Control, Color: Black, Includes: Steering Wheel, Column Switches, 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)2001
Stock NumberP-72279
MLS Number12630670
CategorySteering Columns
Last Updated5/13/2026
Location
Elkton, MD, US
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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: Engine Oil Temperature, Engine Oil Pressure, RPM, MPH, Water Temperature, Brake Air Pressure, Material: Plastic, For more information...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberP-72281
MLS Number12630672
CategoryInstrument Panel Clusters
Last Updated5/13/2026
Location
Elkton, MD, US
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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, Battery Volts, Controls: Air Suspension, Shift at any Speed except if a wheel is spinning, Traction Equalizer, Material:...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberP-72284
MLS Number12630675
CategoryInstrument Panel Clusters
Last Updated5/13/2026
Location
Elkton, MD, US
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Used 2001 Peterbilt 378 Miscellaneous Dash Switches

Used 2001 Peterbilt 378 Miscellaneous Dash Switches

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(Used) 2001 Peterbilt 378, MISCELLANEOUS DASH SWITCHES- Controls: Eng Brake, Eng Fan, Cruise Control, Heat Mirror, Material: Plastic, 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)2001
Stock NumberP-72288
MLS Number12630679
CategoryInterior Misc. Parts
Last Updated5/13/2026
Location
Elkton, MD, US
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Used 2001 Peterbilt 378 Miscellaneous Dash Switches

Used 2001 Peterbilt 378 Miscellaneous Dash Switches

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(Used) 2001 Peterbilt 378, MISCELLANEOUS DASH SWITCHES- Controls: Wiper Washer, Panel Lights, Head Lights, CL LPS, Material: Plastic, 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)2001
Stock NumberP-72289
MLS Number12630680
CategoryInterior Misc. Parts
Last Updated5/13/2026
Location
Elkton, MD, US
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Used 2001 Peterbilt 378 Brown Leather Headliner

Used 2001 Peterbilt 378 Brown Leather Headliner

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(Used) 2001 Peterbilt 378, HEAD LINER- Color: Brown, Material: Leather, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberP-72290
MLS Number12630681
CategoryInterior Misc. Parts
Last Updated5/13/2026
Location
Elkton, MD, US
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Peterbilt 378 Sun Visor

2001 Peterbilt 378 Sun Visor

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(Used) 2001 Peterbilt 378, SUN VISOR- Side: Driver Left Side, Color: Brown, Material: Vinyl, Type: Adjustable, 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)2001
Stock NumberP-72291
MLS Number12630682
CategorySun Visors
Last Updated5/13/2026
Location
Elkton, MD, US
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Peterbilt 378 Sun Visor

2001 Peterbilt 378 Sun Visor

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(Used) 2001 Peterbilt 378, SUN VISOR- Side: Passenger Right Side, Color: Brown, Material: Vinyl, Type: Adjustable, 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)2001
Stock NumberP-72292
MLS Number12630683
CategorySun Visors
Last Updated5/13/2026
Location
Elkton, MD, US
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Peterbilt 378 Sun Visor

2001 Peterbilt 378 Sun Visor

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(Used) 2001 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)2001
Stock NumberP-72293
MLS Number12630684
CategorySun Visors
Last Updated5/13/2026
Location
Elkton, MD, US
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Peterbilt 378 Dashboard Assembly

2001 Peterbilt 378 Dashboard Assembly

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(Used) 2001 Peterbilt 378, DASH ASSEMBLY- Color: Black Material: Plastic, Less Instrumentations, 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)2001
Stock NumberP-72294
MLS Number12630685
CategoryDashboards
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Front Axle Assembly

1996 Peterbilt 378 Front Axle Assembly

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(Used) 1996 Peterbilt 378, COMPLETE FRONT AXLE- Part Number: 813955, Serial Number: H-95-07-35517, Center Leaf to Center Leaf: 34", Make: Eaton, Model: 12F4, Capacity: 12,000 Lbs, Hub...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1996
Capacity12,000 Lbs
Part Number813955
Stock NumberP-112328
MLS Number13867890
CategoryAxle Assemblies, Front
Last Updated5/13/2026
Location
Elkton, MD, US
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Peterbilt 378 Front Leaf Spring

1996 Peterbilt 378 Front Leaf Spring

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(Used) 1996 Peterbilt 378, FRONT LEAF SPRINGS- Side: Driver Left Side, Material: Steel, Leaf Quantity: 2, Dimensions: L=56", W=4", 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)1996
Stock NumberP-112329
MLS Number13867891
CategoryLeaf Springs, Front
Last Updated5/13/2026
Location
Elkton, MD, US
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Peterbilt 378 Front Leaf Spring

1996 Peterbilt 378 Front Leaf Spring

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(Used) 1996 Peterbilt 378, FRONT LEAF SPRINGS- Side: Passenger Right Side, Material: Steel, Leaf Quantity: 2, Dimensions: L=56", W=4", 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)1996
Stock NumberP-112330
MLS Number13867892
CategoryLeaf Springs, Front
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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Peterbilt 378 Left Spindle

1996 Peterbilt 378 Left Spindle

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(Used) 1996 Peterbilt 378, FRONT SPINDLE/KNUCKLE- Part Number: 813955, Serial Number: H-95-07-35517, Side: Driver Left Side, Make: Eaton, Model: 12F4, Capacity: 12,000 Lbs, Hub Bolts: 10,...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1996
SideLEFT
Capacity12,000 Lbs
Part Number813955
Stock NumberP-112334
MLS Number13867896
CategorySpindles / Knuckles
Last Updated5/13/2026
Location
Elkton, MD, US
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Peterbilt 378 Right Spindle

1996 Peterbilt 378 Right Spindle

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(Used) 1996 Peterbilt 378, FRONT SPINDLE/KNUCKLE- Part Number: 813955, Serial Number: H-95-07-35517, Side: Passenger Right Side, Make: Eaton, Model: 12F4, Capacity: 12,000 Lbs, Hub Bolts:...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1996
SideRIGHT
Capacity12,000 Lbs
Part Number813955
Stock NumberP-112335
MLS Number13867897
CategorySpindles / Knuckles
Last Updated5/13/2026
Location
Elkton, MD, US
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Peterbilt 378 Battery Box Cover

1996 Peterbilt 378 Battery Box Cover

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(Used) 1996 Peterbilt 378, BATTERY BOX COVER- Side: Driver Left Side, Capacity: 4 Batteries, Material: Aluminum, Dimensions: L=30.5", H=16", W=16", Damage Reference images for condition, ...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1996
Stock NumberP-112369
MLS Number13868820
CategoryBattery Box Covers
Last Updated5/13/2026
Location
Elkton, MD, US
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Peterbilt 378 Air Dryer

1996 Peterbilt 378 Air Dryer

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(Used) 1996 Peterbilt 378, AIR DRYER- Make: Bendix, Model: AD-9, Material: Steel, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1996
Stock NumberP-112373
MLS Number13868824
CategoryAir Dryers
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
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