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Peterbilt 378 Truck Parts For Sale

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Air Intake & Filtration (44)   Air Cleaners / Air Filter Housings (23)   Air Transfer Tubes (21)Air Tanks (20)Axles & Differentials (45)   Axle Assemblies, Front (42)   Spindles / Knuckles (3)Battery Box Covers (2)Battery Boxes / Trays (21)Brakes (5)   ABS Control Modules (1)   Air Dryers (3)   Brake Parts (1)Cab Mounts (5)Cab, Body & Interior (289)   Back Windows (1)   Bumpers, Front (16)   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 Hinges (2)   Hoods (32)   Interior Misc. Parts (21)   Mirrors (5)   Roof Fairings (1)   Seats (9)   Side View Mirrors (16)   Sleeper Doors (6)   Sleepers (8)   Steering Wheels (3)   Sun Visors (Exterior) (1)   Sun Visors (16)Cooling & HVAC (77)   A/C Compressors (1)   A/C Condensers (3)   Blower Motors (HVAC) (2)   Cooling Assemblies (Rad., Cond., ATAAC) (6)   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 (31)Electrical & Lighting (41)   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 (4)   Windshield Wiper Arms (2)   Windshield Wiper Motors (3)Electrical Misc. Parts (1)Engine & Powertrain (4)   Engine Mounts (4)Exhaust & Emissions (18)   Exhaust Assemblies (4)   Exhaust Brackets (12)   Exhaust Pipes (2)   Exhaust Parts (4)Exterior Misc. Parts (14)Frame & Chassis (35)   Brackets, Misc. (8)   Crossmembers (10)   Deck Plates / Catwalk (2)   Fifth Wheels (1)   Frame Horns (13)   Frames (1)Fuel System (54)   Fuel / Water Separators (1)   Fuel Tank Straps & Brackets (15)   Fuel Tanks (Truck) (38)Hood Parts (9)Hydraulics & PTO (3)   Hydraulic Tanks (3)Instrument Panel Clusters (32)Miscellaneous Truck Parts (4)Power Steering Reservoirs (2)Suspension & Steering (62)   Leaf Springs, Front (12)   Power Steering Assemblies (1)   Spring Hangers (1)   Steering Columns (22)   Steering Gears / Racks (4)   Steering Pumps (1)   Steering Shafts (1)   Suspension Crossmembers / K-Frames (6)   Suspension Misc. Parts (8)   Suspensions (6)Tool Boxes (11)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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Peterbilt (813)
Model
378 (813)
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Showing 676 - 700 of 813 Listings

676 - 700 of 813 listings
676 - 700 of 813 listings
Peterbilt 378 Front Door Assembly

1997 Peterbilt 378 Front Door Assembly

$225 USD
(USED) Peterbilt 378 Color: RED Pwr Wnd: NO W/ Mirror: NO Type: COMPLETE DOES NOT INCLUDE MIRROR COMPLETE DOOR ASSEMBLY, EXTERIOR DOOR HANDLE HAS A HOLE RUSTED THROUGH IT, MAY NEED REPLACED
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Stock Number25968767
MLS Number14269947
CategoryDoor Assemblies, Front
Last Updated3/27/2026
Location
Spencer, IA, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
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Vander Haag's Inc.
Used 2004 Peterbilt 378 Complete Hood, 60.5" Length, White

Used 2004 Peterbilt 378 Complete Hood, 60.5" Length, White

$2,260 USD
(USED) Peterbilt 378 SFA/SBA: SFA Color: WHITE Type: COMPLETE Length: 60.5 COMPLETE HOOD GRILL SURROUND IS BENT PAINT IS PEELING IN SEVERAL PLACES LEFT FRONT EDGE OF THE FENDER IS DAMAGED...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Stock Number25933063
MLS Number14123213
CategoryHoods
Last Updated3/28/2026
Location
Winimac, IN, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
NUMBERCall Seller
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Vander Haag's Inc.
Peterbilt 378 Fuel Tank Strap / Bracket

2004 Peterbilt 378 Fuel Tank Strap / Bracket

$400 USD
(USED) Peterbilt 378 Tank Dia: 26 Strap Width: 3.75 Material: STAINLESS Includes Step : NO SET OF 2 STRAPS W/ BRACKETS AND STEPS., ONE STRAP IS STAINLESS, ONE IS ALUMINUM.
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Stock Number25933114
MLS Number14123193
CategoryFuel Tank Straps & Brackets
Last Updated3/18/2026
Location
Winimac, IN, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
NUMBERCall Seller
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Vander Haag's Inc.
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