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Peterbilt 378 Truck Parts For Sale

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Truck Parts (801)
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Air Intake & Filtration (43)   Air Cleaners / Air Filter Housings (21)   Air Transfer Tubes (22)Air Tanks (19)Axles & Differentials (42)   Axle Assemblies, Front (40)   Spindles / Knuckles (2)Battery Box Covers (2)Battery Boxes / Trays (18)Brakes (6)   ABS Control Modules (2)   Air Dryers (3)   Brake Parts (1)Cab Mounts (5)Cab, Body & Interior (286)   Back Windows (1)   Brake / Clutch / Gas Pedal Parts (1)   Bumpers, Front (11)   Cabs (32)   Dashboards (14)   Door Assemblies, Front (20)   Door Mirrors (22)   Door Vent Glass (1)   Door Window Regulators (2)   Door Windows (1)   Doors (46)   Fender Extensions (3)   Fenders (4)   Grilles (3)   Hood Hinges (2)   Hoods (29)   Interior Misc. Parts (21)   Mirrors (5)   Roof Fairings (1)   Seats (9)   Side View Mirrors (16)   Sleeper Doors (10)   Sleeper Windows (4)   Sleepers (8)   Steering Wheels (3)   Sun Visors (Exterior) (1)   Sun Visors (16)Cooling & HVAC (77)   A/C Compressors (1)   A/C Condensers (3)   Blower Motors (HVAC) (2)   Coolant Tubes (1)   Cooling Assemblies (Rad., Cond., ATAAC) (5)   Fan Blades (1)   Fan Clutches (1)   Heater / AC Climate Control Parts (13)   Intercoolers & Charge Air Coolers (10)   Intercoolers (1)   Radiator Frames (1)   Radiator Overflow Bottles / Surge Tanks (8)   Radiators (30)Electrical & Lighting (40)   Body / Chassis Control Modules (1)   Cab Wiring Harnesses (2)   Door Electrical Switches (1)   Fuse Boxes & Panels (5)   Gauges (5)   Headlight Assemblies (7)   Radios (4)   Side Marker Lamps (1)   Throttle Position Sensors (4)   Windshield Washer Reservoirs (4)   Windshield Wiper Arms (2)   Windshield Wiper Motors (4)Electrical Misc. Parts (1)Engine & Powertrain (5)   Engine Mounts (5)Exhaust & Emissions (17)   Diesel Exhaust Fluid (DEF) Tanks (1)   Exhaust Assemblies (6)   Exhaust Brackets (8)   Exhaust Pipes (2)   Exhaust Parts (4)Exterior Misc. Parts (14)Frame & Chassis (34)   Brackets, Misc. (7)   Crossmembers (13)   Deck Plates / Catwalk (3)   Frame Horns (11)Fuel System (54)   Fuel / Water Separators (1)   Fuel Tank Straps & Brackets (14)   Fuel Tanks (Truck) (39)Hood Parts (9)Hydraulics & PTO (4)   Hydraulic Tanks (4)Instrument Panel Clusters (31)Miscellaneous Truck Parts (4)Power Steering Reservoirs (2)Suspension & Steering (60)   Leaf Springs, Front (12)   Leaf Springs, Rear (1)   Power Steering Assemblies (1)   Spring Hangers (3)   Steering Columns (19)   Steering Gears / Racks (2)   Steering Pumps (1)   Steering Shafts (1)   Suspension Crossmembers / K-Frames (6)   Suspension Misc. Parts (7)   Suspensions (7)Tool Boxes (13)Transmission & Driveline (9)   Driveshaft Parts (2)   Driveshafts (7)Truck Bodies / Boxes / Beds (1)Wheels, Tires & Hubs (2)   Mud Flap Hangers (2)
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Peterbilt (802)
Model
378 (802)
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Showing 451 - 475 of 802 Listings

451 - 475 of 802 listings
451 - 475 of 802 listings
Peterbilt 378 Right Seat

1996 Peterbilt 378 Right Seat

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(Used) 1996 Peterbilt 378, SEAT- Side: Passenger Right Side, Color: Blue, Material: Fabric, Type: Manual, Damage Reference images for condition, For more information about this item, give...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1996
SideRIGHT
Stock NumberP-112399
MLS Number13868850
CategorySeats
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Peterbilt 378 Right Fuel Tank

1998 Peterbilt 378 Right Fuel Tank

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1998 PETERBILT 378 FUEL TANK,SPLIT TANK, MEASURES: 87 X 23, CAPACITY: 131 GAL, ALUMINUM,PASSENGER SIDE. SMALL BUMP AT THE BACK., Dimensions: 87 X 23, Material: Aluminium
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
SideRIGHT
Stock NumberPT-0460-12
MLS Number9989568
CategoryFuel Tanks (Truck)
Last Updated5/14/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
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Lomoca Inc.
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
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Peterbilt 378 Air Cleaner / Air Filter Housing

1996 Peterbilt 378 Air Cleaner / Air Filter Housing

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(Used) 1996 Peterbilt 378, AIR CLEANER- Side: Center Of Truck, Color: Black, Material: Steel, Engine: Detroit Series 60, Dimensions: L=27.5", D=12", Damage Reference images for condition, ...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1996
Stock NumberP-112379
MLS Number13868830
CategoryAir Cleaners / Air Filter Housings
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Peterbilt 378 Front Bumper

1998 Peterbilt 378 Front Bumper

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Peterbilt 378 Bumper - Used - Material: Stainless Steel. Removed from a 1998 Peterbilt 378 truck, this bumper is made of stainless steel and has some damage which can be seen in the...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Stock NumberPT-0460-5
MLS Number9989563
CategoryBumpers, Front
Last Updated5/14/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
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Lomoca Inc.
Peterbilt 378 Front Bumper

1998 Peterbilt 378 Front Bumper

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1998 Peterbilt 378 16" Stainless Steel Bumper - Used - Part has some damage (see photos). Do you have questions or need more information? Give us a shout by phone, email, or text. We ship...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Part NumberTBD
Stock NumberPT-0460-29
MLS Number9989741
CategoryBumpers, Front
Last Updated5/14/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
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Lomoca Inc.
Peterbilt 378 Left Door

2004 Peterbilt 378 Left Door

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2004 Peterbilt 378 Door For Sale - LH / Driver Side - Manual door complete with interior panel, glass and exterior shell - Used - May have some cosmetic blemishes (see photos). Give us a...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
SideLEFT
Stock NumberPT-0653-20
MLS Number10867183
CategoryDoors
Last Updated5/14/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
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Lomoca Inc.
Peterbilt 378 Tool Box

2001 Peterbilt 378 Tool Box

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Peterbilt 378 toolbox, utility box, with steps and cover, Heater not included, passenger side. Box has some damage see pictures for reference. Call for details we ship everywhere., Material:...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberPT-0644-11
MLS Number10787869
CategoryTool Boxes
Last Updated5/14/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
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Lomoca Inc.
Peterbilt 378 Radiator

2004 Peterbilt 378 Radiator

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2004 Peterbilt 378 Radiator Assembly / Cooling Pack For Sale - Complete with radiator, CAC, AC condenser and Shroud - Used - May have some cosmetic blemishes (see photos). Give us a shout by...
ConditionUsed
Engine ModelCaterpillar C15
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
Stock NumberPT-0653-35
MLS Number10923033
CategoryRadiators
Last Updated6/13/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
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Lomoca Inc.
Used 2004 Peterbilt 378 Tow Hook

Used 2004 Peterbilt 378 Tow Hook

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2004 Peterbilt 378 Tow Hook For Sale - Used - May have some cosmetic blemishes (see photos). Give us a shout by phone, email, or text. We ship everywhere.
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
Stock NumberPT-0653-22
MLS Number10867185
CategoryMiscellaneous Truck Parts
Last Updated5/14/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
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Lomoca Inc.
Peterbilt 378 Hydraulic Tank

2004 Peterbilt 378 Hydraulic Tank

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(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
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
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
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
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CRG Heavy Truck Parts
Peterbilt 378 Cooling Assembly

1995 Peterbilt 378 Cooling Assembly

$1,270 USD
(USED) Peterbilt 378 Rad#: N/A ATA#: 05-18731 Condenser#: N/A Engine: CUMMINS N14 CELECT+ Ref# N/A COOLING ASSEMBLY, INCLUDES RADIATOR, CHARGE AIR COOLER, AC CONDENSER, INCLUDES OVERFLOW...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Part NumberN/A
Stock Number25737955
MLS Number13312612
CategoryCooling Assemblies (Rad., Cond., ATAAC)
Last Updated4/17/2026
Location
Sioux Falls, SD, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
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Vander Haag's Inc.
Peterbilt 378 Instrument Panel Cluster

1991 Peterbilt 378 Instrument Panel Cluster

$300 USD
(USED) Peterbilt 378 Gauges: 7 Engine: CUMMINS N14 M Part#: - RPM, FUEL, MPH, ENGINE OIL TEMP, OIL PSI, AIR PSI, AIR FILTER RESTRICTION GUAGE, DOES NOT INCLUDE WARNING BAR
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Stock Number25434237
MLS Number12076163
CategoryInstrument Panel Clusters
Last Updated3/13/2026
Location
Kansas City, MO, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
NUMBERCall Seller
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Vander Haag's Inc.
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