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Peterbilt 378 Truck Parts For Sale

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Air Intake & Filtration (40)   Air Cleaners / Air Filter Housings (20)   Air Transfer Tubes (20)Air Tanks (20)Axles & Differentials (42)   Axle Assemblies, Front (40)   Spindles / Knuckles (2)Battery Box Covers (2)Battery Boxes / Trays (19)Brakes (5)   ABS Control Modules (1)   Air Dryers (3)   Brake Parts (1)Cab Mounts (5)Cab, Body & Interior (278)   Back Windows (1)   Bumpers, Front (16)   Cabs (31)   Dashboards (14)   Door Assemblies, Front (20)   Door Mirrors (22)   Door Vent Glass (1)   Door Window Regulators (2)   Door Windows (1)   Doors (45)   Fender Extensions (2)   Fenders (3)   Grilles (3)   Hood Hinges (2)   Hoods (31)   Interior Misc. Parts (21)   Mirrors (5)   Roof Fairings (1)   Seats (9)   Side View Mirrors (15)   Sleeper Doors (6)   Sleepers (7)   Steering Wheels (3)   Sun Visors (Exterior) (1)   Sun Visors (16)Cooling & HVAC (75)   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 (30)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 (28)   Brackets, Misc. (7)   Crossmembers (9)   Deck Plates / Catwalk (1)   Frame Horns (10)   Frames (1)Fuel System (52)   Fuel / Water Separators (1)   Fuel Tank Straps & Brackets (13)   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)
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Showing 76 - 100 of 774 Listings

76 - 100 of 774 listings
76 - 100 of 774 listings
Peterbilt 378 Right Fuel Tank

2002 Peterbilt 378 Right Fuel Tank

$400 USD
USED RH APROX 150 GAL FUEL TANK OFF 2002 PETE 378, Capacity: APROX 150 GAL, Dimensions: 26 X 66, Material: Aluminum, Fuel Tank Shape: ROUND
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2002
SideRIGHT
CapacityAPROX 150 GAL
Stock Number120820-22
MLS Number12774607
CategoryFuel Tanks (Truck)
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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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 Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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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 Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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