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 (841)
Category
Air Intake & Filtration (47)   Air Cleaners / Air Filter Housings (26)   Air Transfer Tubes (21)Air Tanks (23)Axles & Differentials (45)   Axle Assemblies, Front (42)   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 (290)   Back Windows (1)   Bumpers, Front (14)   Cab Exterior Panels (2)   Cabs (31)   Dashboards (14)   Door Assemblies, Front (22)   Door Mirrors (20)   Door Vent Glass (1)   Door Window Regulators (2)   Door Windows (1)   Doors (42)   Fender Extensions (4)   Fenders (3)   Grilles (3)   Hood Brackets (2)   Hood Hinges (3)   Hoods (31)   Interior Misc. Parts (21)   Mirrors (5)   Roof Fairings (1)   Seats (9)   Side View Mirrors (14)   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 (41)   Body / Chassis Control Modules (1)   Cab Wiring Harnesses (1)   Door Electrical Switches (1)   Fuse Boxes & Panels (6)   Gauges (2)   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 (38)   Brackets, Misc. (8)   Crossmembers (10)   Deck Plates / Catwalk (2)   Fifth Wheels (1)   Frame Horns (11)   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 (35)Miscellaneous Truck Parts (4)Power Steering Reservoirs (2)Suspension & Steering (67)   Leaf Springs, Front (12)   Leaf Springs, Rear (1)   Power Steering Assemblies (1)   Spring Hangers (2)   Steering Columns (22)   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 (842)
Model
378 (842)
A limited list of models are shown. Select a category above to view all available models.
Condition
Used (842)
Model Year
-
Horsepower
-
Price
-
Country
State / Region
Select a country to view available states.
Market Type
For Sale (842)

Shop Truck Parts by Category

Showing 376 - 400 of 842 Listings

376 - 400 of 842 listings
376 - 400 of 842 listings
Used 2001 Peterbilt 378 Hood Assembly 60" Fiberglass, Blue

Used 2001 Peterbilt 378 Hood Assembly 60" Fiberglass, Blue

$3,749.98 USD
(Used) 2001 Peterbilt 378, HOOD ASSEMBLY- Length: 60", Color: Blue, Material: Fiberglass, Minor Damage Reference images for condition, 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-72266
MLS Number12630659
CategoryHoods
Last Updated3/23/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Peterbilt 378 Radiator Overflow Bottle / Surge Tank

2001 Peterbilt 378 Radiator Overflow Bottle / Surge Tank

Contact for price
(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 Updated3/20/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Peterbilt 378 Right Air Cleaner / Air Filter Housing

2001 Peterbilt 378 Right Air Cleaner / Air Filter Housing

Contact for price
(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 Updated7/22/2025
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Peterbilt 378 Air Tank

2001 Peterbilt 378 Air Tank

$224.98 USD
(Used) 2001 Peterbilt 378, AIR TANK- Side: Rear, Location: Top, Material: Steel, Dimensions: L=32", D=10", Front Ports: 2, Rear Ports: 2, Side Ports: 3, For more information about this...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberP-72251
MLS Number12630644
CategoryAir Tanks
Last Updated11/18/2025
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Peterbilt 378 Air Tank

2001 Peterbilt 378 Air Tank

$224.98 USD
(Used) 2001 Peterbilt 378, AIR TANK- Side: Rear, Location: Top, Material: Steel, Dimensions: L=35", D=10", Front Ports: 2, Rear Ports: 2, Side Ports: 3, For more information about this...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberP-72250
MLS Number12630643
CategoryAir Tanks
Last Updated11/18/2025
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Peterbilt 378 Air Tank

2001 Peterbilt 378 Air Tank

$224.98 USD
(Used) 2001 Peterbilt 378, AIR TANK- Side: Driver Left Side, Location: Bottom, Material: Steel, Dimensions: L= 22", D=9", Front Ports: 2, Rear Ports: 2, Side Ports: 3, For more...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberP-72248
MLS Number12630641
CategoryAir Tanks
Last Updated11/18/2025
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Peterbilt 378 Air Tank

2001 Peterbilt 378 Air Tank

$224.98 USD
(Used) 2001 Peterbilt 378, AIR TANK- Side: Driver Left Side, Location: Bottom, Material: Steel, Dimensions: L=28", D=9", Front Ports: 2, Rear Ports: 3, For more information about this item...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2001
Stock NumberP-72244
MLS Number12630637
CategoryAir Tanks
Last Updated11/18/2025
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Peterbilt 378 Hydraulic Tank

2001 Peterbilt 378 Hydraulic Tank

Contact for price
(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 Updated2/13/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Peterbilt 378 Cab Assembly

2001 Peterbilt 378 Cab Assembly

Contact for price
(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 Updated2/13/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Peterbilt 378 Radiator Overflow Bottle / Surge Tank

2007 Peterbilt 378 Radiator Overflow Bottle / Surge Tank

$175 USD
GOOD USED SURGE TANK/ RADIATOR OVERFLOW BOTTLE/ STEEL FIREWALL MOUNT., Dimensions: NA, Fill Location: TOP
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2007
Part NumberGET
Stock Number122823
MLS Number12580946
CategoryRadiator Overflow Bottles / Surge Tanks
Last Updated1/22/2024
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
1998 Peterbilt 378 Hood Assembly 55" Length with Headlights and Grille

1998 Peterbilt 378 Hood Assembly 55" Length with Headlights and Grille

Contact for price
1998 Peterbilt 378 Hood Assembly - Used - Length: 55 inch - Complete with headlights and grill - Part has some damage on the driver side (see photos) - Compatible with some older and newer...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Part NumberTBD
Stock NumberPT-0460-7
MLS Number9989565
CategoryHoods
Last Updated3/23/2026
Location
York, ON, Canada
Sold By
Lomoca Inc.
(833) 835-___  SHOW
NUMBERCall Seller
Email Seller
Save
Lomoca Inc.
Peterbilt 378 Cab Assembly

2007 Peterbilt 378 Cab Assembly

$3,995 USD
GOOD USED CAB SHELL// AIR RIDE/ SHELL ONLY. NO MIRRORS,DOORS OR GUAGES OR STEERING COLUMN. UNDER HOOD AIR CLEANER/STANDARD TRANS WITH CLUTCH PEDAL., Air/Hydraulic: Air/Hydraulic, Engine Make...
ConditionUsed
Engine ModelCummins ISX
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2007
Part NumberNA
Stock Number122823-2
MLS Number12544104
CategoryCabs
Last Updated1/5/2024
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Peterbilt 378 Side View Mirror

2004 Peterbilt 378 Side View Mirror

$324.98 USD
(Used) 2004 Peterbilt 378 SIDE VIEW MIRROR - DRIVERS SIDE, MANUAL, Reference images for condition 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-56350
MLS Number12247601
CategorySide View Mirrors
Last Updated10/30/2025
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Peterbilt 378 Air Dryer

1998 Peterbilt 378 Air Dryer

Contact for price
(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 Updated12/19/2023
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Peterbilt 378 Frame Horn

1998 Peterbilt 378 Frame Horn

$1,198.99 USD
(Used) 1998 Peterbilt 378, FRAME HORN- Part Number: 02-02516 L, Side: Driver Left Side, Location: Front Left, Associated Parts Supported: Hood, Material: Aluminum, Dimensions: L=24",...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1998
Part Number02-02516 L
Stock NumberP-54225
MLS Number12197220
CategoryFrame Horns
Last Updated1/20/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
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 Updated12/18/2023
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
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