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Used Peterbilt 378 Truck Parts For Sale by Dealerships

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Truck Parts (859)
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Air Intake & Filtration (48)   Air Cleaners / Air Filter Housings (27)   Air Transfer Tubes (21)Air Tanks (23)Axles & Differentials (46)   Axle Assemblies, Front (43)   Spindles / Knuckles (3)Battery Box Covers (2)Battery Boxes / Trays (21)Brakes (6)   ABS Control Modules (2)   Air Dryers (3)   Brake Parts (1)Cab Mounts (6)Cab, Body & Interior (301)   Back Windows (1)   Bumpers, Front (15)   Cabs (32)   Dashboards (14)   Door Assemblies, Front (23)   Door Mirrors (22)   Door Vent Glass (1)   Door Window Regulators (2)   Door Windows (1)   Doors (44)   Fender Extensions (6)   Fenders (4)   Grilles (3)   Hood Brackets (2)   Hood Hinges (3)   Hoods (32)   Interior Misc. Parts (21)   Mirrors (5)   Roof Fairings (1)   Seats (9)   Side View Mirrors (16)   Sleeper Doors (8)   Sleeper Windows (4)   Sleepers (8)   Steering Wheels (3)   Sun Visors (Exterior) (1)   Sun Visors (Interior) (4)   Sun Visors (16)Cooling & HVAC (79)   A/C Compressors (1)   A/C Condensers (3)   Blower Motors (HVAC) (2)   Coolant Tubes (1)   Cooling Assemblies (Rad., Cond., ATAAC) (7)   Fan Blades (1)   Fan Clutches (1)   Heater / AC Climate Control Parts (14)   Intercoolers & Charge Air Coolers (10)   Intercoolers (1)   Radiator Frames (1)   Radiator Overflow Bottles / Surge Tanks (8)   Radiators (29)Electrical & Lighting (43)   Body / Chassis Control Modules (1)   Cab Wiring Harnesses (1)   Door Electrical Switches (1)   Fuse Boxes & Panels (6)   Gauges (4)   Headlight Assemblies (10)   Radios (4)   Side Marker Lamps (1)   Throttle Position Sensors (4)   Windshield Washer Reservoirs (6)   Windshield Wiper Arms (2)   Windshield Wiper Motors (3)Electrical Misc. Parts (1)Engine & Powertrain (5)   Engine Mounts (5)Exhaust & Emissions (20)   Diesel Exhaust Fluid (DEF) Tanks (1)   Exhaust Assemblies (4)   Exhaust Brackets (12)   Exhaust Pipes (2)   Exhaust Stacks (1)   Exhaust Parts (4)Exterior Misc. Parts (14)Frame & Chassis (40)   Brackets, Misc. (8)   Crossmembers (10)   Deck Plates / Catwalk (2)   Fifth Wheels (1)   Frame Horns (13)   Frames (2)   Headache Racks (1)   Steps (Frame, Fuel Tank, Fairing) (2)   Tow Hooks (1)Fuel System (55)   Fuel / Water Separators (1)   Fuel Tank Straps & Brackets (16)   Fuel Tanks (Truck) (38)Hood Parts (9)Hydraulics & PTO (3)   Hydraulic Tanks (3)Instrument Panel Clusters (34)Miscellaneous Truck Parts (4)Power Steering Reservoirs (2)Suspension & Steering (69)   Leaf Springs, Front (12)   Leaf Springs, Rear (1)   Power Steering Assemblies (1)   Spring Hangers (2)   Steering Columns (24)   Steering Gears / Racks (4)   Steering Pumps (1)   Steering Shafts (1)   Suspension Crossmembers / K-Frames (8)   Suspension Misc. Parts (9)   Suspensions (6)Tool Boxes (14)Transmission & Driveline (9)   Driveshaft Parts (2)   Driveshafts (7)Truck Bodies / Boxes / Beds (1)Wheels, Tires & Hubs (1)   Mud Flap Hangers (1)
Make
Peterbilt (860)
Model
378 (860)
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Used (860)
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Showing 276 - 300 of 860 Listings

276 - 300 of 860 listings
276 - 300 of 860 listings
Used 2005 Peterbilt 378 Interior Dog House / Cup Holder

Used 2005 Peterbilt 378 Interior Dog House / Cup Holder

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2005 Peterbilt 378 Interior Dog House / Cup Holder For Sale P/N - 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)2005
Stock NumberPT-0625-9
MLS Number10682864
CategoryInterior Misc. Parts
Last Updated3/24/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
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Lomoca Inc.
Used 2005 Peterbilt 378 Dashboard Gauge Cluster Panel

Used 2005 Peterbilt 378 Dashboard Gauge Cluster Panel

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2005 Peterbilt 378 Dashboard Gauge Cluster Panel 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)2005
Stock NumberPT-0625-6
MLS Number10682861
CategoryHeater / AC Climate Control Parts
Last Updated3/26/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
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Lomoca Inc.
Peterbilt 378 Cab Assembly

2005 Peterbilt 378 Cab Assembly

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2005 Peterbilt 378 Cab For Parts - Shell, dash, seats, doors, mirrors, clusters, modules and upholstery sold separately - Used - May have some cosmetic blemishes (see photos). Give us a...
ConditionUsed
Engine ModelCummins ISX
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2005
Stock NumberPT-0625-3
MLS Number10674000
CategoryCabs
Last Updated10/9/2024
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
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Lomoca Inc.
Used 2004 Peterbilt 378 Dash Panel

Used 2004 Peterbilt 378 Dash Panel

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2004 Peterbilt 378 Dash Panel 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-0653-52
MLS Number11654842
CategoryHeater / AC Climate Control Parts
Last Updated3/26/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
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Lomoca Inc.
2004 Peterbilt 378 Heater / AC Climate Control Module, Part # 18-04461

2004 Peterbilt 378 Heater / AC Climate Control Module, Part # 18-04461

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2004 Peterbilt 378 Heater / AC Climate Control Module For Sale P/N 18-04461 - Used - May have some cosmetic blemishes (see photos). 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)2004
Part Number18-04461
Stock NumberPT-0653-49
MLS Number11654841
CategoryHeater / AC Climate Control Parts
Last Updated3/26/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
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Lomoca Inc.
Peterbilt 378 Left Side View Mirror

2004 Peterbilt 378 Left Side View Mirror

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2004 Peterbilt 378 Side View Mirror For Sale - LH / Driver Side - 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
SideLEFT
Stock NumberPT-0653-23
MLS Number10908001
CategorySide View Mirrors
Last Updated10/8/2024
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 Updated4/2/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
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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 Updated10/8/2024
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
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Lomoca Inc.
Peterbilt 378 Cab Assembly

2004 Peterbilt 378 Cab Assembly

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2004 Peterbilt 378 Cab For Parts - Shell, dash, seats, doors, mirrors, clusters, modules and upholstery sold separately - Used - May have some cosmetic blemishes (see photos). Give us a...
ConditionUsed
Engine ModelCaterpillar C15
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
Stock NumberPT-0653-7
MLS Number10830694
CategoryCabs
Last Updated10/8/2024
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
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Lomoca Inc.
Peterbilt 378 Front Axle Assembly

2004 Peterbilt 378 Front Axle Assembly

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Eaton EFA20F4 Front Steer Axle For Sale - Hub to Hub - Used - May have some cosmetic blemishes (see photos). Give us a shout by phone, email, or text. We ship everywhere., Serial#: EFA20F4,...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
Capacity20000
Stock NumberPT-0653-3
MLS Number10830690
CategoryAxle Assemblies, Front
Last Updated10/4/2024
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
Email Seller
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Lomoca Inc.
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