1. Home
  2. For Sale
  3. Truck Parts
  4. Peterbilt
  5. 378
  6. Used

Used Peterbilt 378 Truck Parts For Sale by Dealerships

Close
Your Current Search
Industry
Truck Parts
Manufacturer
Peterbilt
Model
378
Condition
Used
Seller Type
Dealerships
Click the to remove the filter.
Save Search
Email Alert
What's Save Search and Email Alert?
Narrow Your Search
Keyword Search
Search within the selected criteria
Equipment Type
Trucks (1)
Truck Parts (775)
Category
Air Intake & Filtration (41)   Air Cleaners / Air Filter Housings (21)   Air Transfer Tubes (20)Air Tanks (20)Axles & Differentials (43)   Axle Assemblies, Front (41)   Spindles / Knuckles (2)Battery Box Covers (2)Battery Boxes / Trays (20)Brakes (5)   ABS Control Modules (1)   Air Dryers (3)   Brake Parts (1)Cab Mounts (5)Cab, Body & Interior (276)   Back Windows (1)   Bumpers, Front (15)   Cabs (32)   Dashboards (14)   Door Assemblies, Front (20)   Door Mirrors (21)   Door Vent Glass (1)   Door Window Regulators (2)   Door Windows (1)   Doors (45)   Fender Extensions (2)   Fenders (3)   Grilles (3)   Hood Hinges (2)   Hoods (29)   Interior Misc. Parts (21)   Mirrors (5)   Roof Fairings (1)   Seats (9)   Side View Mirrors (15)   Sleeper Doors (6)   Sleepers (8)   Steering Wheels (3)   Sun Visors (Exterior) (1)   Sun Visors (16)Cooling & HVAC (73)   A/C Compressors (1)   A/C Condensers (3)   Blower Motors (HVAC) (2)   Cooling Assemblies (Rad., Cond., ATAAC) (5)   Fan Blades (1)   Fan Clutches (1)   Heater / AC Climate Control Parts (12)   Intercoolers & Charge Air Coolers (10)   Intercoolers (1)   Radiator Frames (1)   Radiator Overflow Bottles / Surge Tanks (8)   Radiators (28)Electrical & Lighting (38)   Body / Chassis Control Modules (1)   Cab Wiring Harnesses (1)   Door Electrical Switches (1)   Fuse Boxes & Panels (6)   Gauges (4)   Headlight Assemblies (7)   Radios (4)   Side Marker Lamps (1)   Throttle Position Sensors (4)   Windshield Washer Reservoirs (4)   Windshield Wiper Arms (2)   Windshield Wiper Motors (3)Electrical Misc. Parts (1)Engine & Powertrain (5)   Engine Mounts (5)Exhaust & Emissions (18)   Exhaust Assemblies (4)   Exhaust Brackets (12)   Exhaust Pipes (2)   Exhaust Parts (4)Exterior Misc. Parts (14)Frame & Chassis (30)   Brackets, Misc. (7)   Crossmembers (9)   Deck Plates / Catwalk (1)   Frame Horns (10)   Frames (2)   Headache Racks (1)Fuel System (53)   Fuel / Water Separators (1)   Fuel Tank Straps & Brackets (14)   Fuel Tanks (Truck) (38)Hood Parts (9)Hydraulics & PTO (3)   Hydraulic Tanks (3)Instrument Panel Clusters (28)Miscellaneous Truck Parts (4)Power Steering Reservoirs (2)Suspension & Steering (61)   Leaf Springs, Front (12)   Power Steering Assemblies (1)   Spring Hangers (3)   Steering Columns (20)   Steering Gears / Racks (2)   Steering Pumps (1)   Steering Shafts (1)   Suspension Crossmembers / K-Frames (6)   Suspension Misc. Parts (8)   Suspensions (7)Tool Boxes (10)Transmission & Driveline (9)   Driveshaft Parts (2)   Driveshafts (7)Truck Bodies / Boxes / Beds (1)Wheels, Tires & Hubs (1)   Mud Flap Hangers (1)
Make
Peterbilt (776)
Model
378 (776)
A limited list of models are shown. Select a category above to view all available models.
Condition
Used (776)
Model Year
-
Horsepower
-
Price
-
Country
State / Region
Select a country to view available states.
Market Type
For Sale (776)

Shop Truck Parts by Category

Showing 1 - 25 of 776 Listings

1 - 25 of 776 listings
1 - 25 of 776 listings
Peterbilt 378 Engine Mount

2001 Peterbilt 378 Engine Mount

Newly Listed
Contact for price
Peterbilt 378 Radiator Mount For Sale, Used. Call for more information, we ship everywhere., Air/Hydraulic: Air/Hydraulic, Engine Make: Caterpillar, Engine Model: C15
ConditionUsed
Engine ModelCaterpillar C15
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberPT-0644-39
MLS Number14439515
CategoryEngine Mounts
Last Updated6/19/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
Email Seller
Save
Lomoca Inc.
Peterbilt 378 Left Spring Hanger

2001 Peterbilt 378 Left Spring Hanger

Newly Listed
Contact for price
Peterbilt 378 Frame Horn For Sale, Used. P/N: 02-01952L-M000, Driver Side. Call for details we ship everywhere., Capacity: 14000, Hub Bolts: 10, Brake Type: Drum, Axle Make: Eaton
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
SideLEFT
Capacity14000
Part Number02-01952L-M000
Stock NumberPT-0644-38
MLS Number14439514
CategorySpring Hangers
Last Updated6/19/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
Email Seller
Save
Lomoca Inc.
Peterbilt 378 Right Spring Hanger

2001 Peterbilt 378 Right Spring Hanger

Newly Listed
Contact for price
Peterbilt 378 Frame Horn For Sale, Used. P/N: 02-02944R, Passenger Side. Call for details we ship everywhere., Capacity: 14000, Hub Bolts: 10, Brake Type: Drum, Axle Make: Eaton
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
SideRIGHT
Capacity14000
Part Number02-02944R
Stock NumberPT-0644-37
MLS Number14439513
CategorySpring Hangers
Last Updated6/19/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
Email Seller
Save
Lomoca Inc.
Peterbilt 378 Left Fuel Tank

2001 Peterbilt 378 Left Fuel Tank

Contact for price
Peterbilt 378 Fuel tank assembly, tank, straps and mounting bracket.Measures : 72 x 25" has a small dent see pictures for details. 150 gallons capacity. Call us today, we ship everywhere.,...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
SideLEFT
Capacity150
Stock NumberPT-0644-13
MLS Number10787871
CategoryFuel Tanks (Truck)
Last Updated6/13/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
Email Seller
Save
Lomoca Inc.
1999 Peterbilt 378 Hood 55"L Set Forward Axle, Part # 13-03520

1999 Peterbilt 378 Hood 55"L Set Forward Axle, Part # 13-03520

$975 USD
1999 Peterbilt 378 Hood, 55"L, Set Forward Axle, P/N 13-03520. Multiple Cracks Repairs, Panel Separation Near Hood Supports, Emblem Damage. See Photos.
ConditionUsed
Fits To Make(s)PETERBILT
Fits To Model(s)378
Stock Number1973-7
MLS Number14291275
CategoryHoods
Last Updated5/20/2026
Location
Dinuba, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
NUMBERCall Seller
Email Seller
Save
Garabedian Equipment
Save Search
Email Alert
What's Save Search and Email Alert?
Want to narrow or modify your search criteria?
Filter by Price
Filter by Year
Filter by Location
Filter by Model
Filter by Keyword
Modify your search
Did you find what you were looking for? Yes No