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Used Peterbilt 378 Truck Parts For Sale by Dealerships

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A/V Equipment (4)   Radios (4)Air Cleaners / Air Filter Housings (23)Air Tanks (23)Air Transfer Tubes (15)Axles & Differentials (45)   Axle Assemblies, Front (42)   Spindles / Knuckles (3)Back Windows (1)Battery Box Covers (2)Battery Boxes / Trays (19)Blower Motors (HVAC) (2)Body / Chassis Control Modules (1)Brakes (6)   ABS Control Modules (2)   Air Dryers (3)   Brake Parts (1)Bumpers, Front (12)Cab Exterior Panels (2)Cab Mounts (6)Cabs (29)Cooling & HVAC (76)   A/C Compressors (1)   A/C Condensers (3)   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 (11)   Intercoolers (1)   Radiator Frames (1)   Radiator Overflow Bottles / Surge Tanks (8)   Radiators (30)Dashboards (12)Diesel Exhaust Fluid (DEF) Tanks (1)Door Electrical Switches (1)Door Mirrors (18)Door Vent Glass (1)Door Window Regulators (2)Door Windows (1)Doors (64)   Door Assemblies, Front (19)Driveshaft Parts (2)Driveshafts (7)Electrical Misc. Parts (1)Engine Parts (5)   Engine Mounts (5)   Exhaust Parts (18)Exhaust Assemblies (4)Exhaust Brackets (7)Exhaust Pipes (2)Exhaust Stacks (1)Exterior Misc. Parts (14)Fairings (1)   Roof Fairings (1)Fender Extensions (4)Fenders (3)Frame & Chassis (38)   Brackets, Misc. (8)   Crossmembers (11)   Deck Plates / Catwalk (2)   Fifth Wheels (1)   Frame Horns (12)   Frames (2)   Steps (Frame, Fuel Tank, Fairing) (2)Fuel / Water Separators (1)Fuel Tank Straps & Brackets (14)Fuel Tanks (Truck) (36)Fuse Boxes & Panels (4)Gauges (3)Grilles (3)Headlight Assemblies (6)Hood Parts (14)   Hood Brackets (2)   Hood Hinges (3)Hoods (33)Hydraulic Tanks (3)Instrument Panel Clusters (33)Interior Misc. Parts (21)Leaf Springs, Front (12)Leaf Springs, Rear (1)Mirrors (5)Miscellaneous Truck Parts (8)Mud Flap Hangers (1)Power Steering Assemblies (1)Power Steering Reservoirs (2)Seats (9)Side Marker Lamps (1)Side View Mirrors (14)Sleeper Parts (10)   Sleeper Doors (6)   Sleeper Windows (4)Sleepers (6)Spring Hangers (2)Steering Columns (21)Steering Gears / Racks (4)Steering Pumps (1)Steering Shafts (1)Steering Wheels (3)Sun Visors (Exterior) (1)Sun Visors (Interior) (4)Sun Visors (16)Suspension Crossmembers / K-Frames (8)Suspension Misc. Parts (9)Suspensions (6)Throttle Position Sensors (4)Tool Boxes (14)Truck Bodies / Boxes / Beds (1)   Windshield Washer Reservoirs (6)   Windshield Wiper Arms (2)   Windshield Wiper Motors (3)
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Peterbilt (806)
Model
378 (806)
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Used (806)
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Shop Truck Parts by Category

Showing 151 - 175 of 806 Listings

151 - 175 of 806 listings
151 - 175 of 806 listings
Peterbilt 378 Right Fuel Tank

2005 Peterbilt 378 Right Fuel Tank

Contact for price
2005 PETE 378 ALUMINUM 120 GALLON PASSENGER SIDE FUEL TANK WITH 4 BRACKETS AND STEPS 23X72 FRONT FILL, Capacity: 120 GALLON, Dimensions: 23X72, Material: Aluminum, Fuel Tank Shape: ROUND
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2005
SideRIGHT
Capacity120 GALLON
Stock Number3646-PETE-13
MLS Number13346991
CategoryFuel Tanks (Truck)
Last Updated2/5/2026
Location
STURGEON COUNTY, AB, Canada
Sold By
Badger Truck Parts Ltd.
(855) 624-___  SHOW
NUMBERCall Seller
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Badger Truck Parts Ltd.
Peterbilt 378 Left Fuel Tank

2005 Peterbilt 378 Left Fuel Tank

$350 USD
USED TANK ASSEMBLY SMALL DENTS ON BOTTOM/ SEE PICTURES/ 68" WELD TO WELD, Capacity: 150, Dimensions: 26X68, Material: Aluminum
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2005
SideLEFT
Capacity150
Part Number11-04651-046B011J
Stock Number101424-7
MLS Number13212631
CategoryFuel Tanks (Truck)
Last Updated6/15/2025
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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Holst Truck Parts
Peterbilt 378 Front Door Assembly

1995 Peterbilt 378 Front Door Assembly

$120 USD
(USED) Peterbilt 378 Color: White Pwr Wnd: YES W/ Mirror: NO Type: COMPLETE DOES NOT INCLUDE MIRROR COMPLETE, DOES NOT INCLUDE MIRROR, SURFACE RUST UNDER PAINT, PAINT CHIPS AND SCRATCHED
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Stock Number25218912
MLS Number11438539
CategoryDoor Assemblies, Front
Last Updated2/28/2025
Location
Sioux Falls, SD, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
NUMBERCall Seller
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Vander Haag's Inc.
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