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Peterbilt 378 Truck Parts For Sale in United States

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Air Intake & Filtration (39)   Air Cleaners / Air Filter Housings (19)   Air Transfer Tubes (20)Air Tanks (13)Axles & Differentials (27)   Axle Assemblies, Front (25)   Spindles / Knuckles (2)Battery Box Covers (2)Battery Boxes / Trays (12)Brakes (3)   Air Dryers (3)Cab, Body & Interior (220)   Back Windows (1)   Bumpers, Front (14)   Cabs (21)   Dashboards (13)   Door Assemblies, Front (20)   Door Mirrors (22)   Door Vent Glass (1)   Door Window Regulators (2)   Door Windows (1)   Doors (35)   Fender Extensions (2)   Fenders (2)   Grilles (2)   Hood Hinges (1)   Hoods (20)   Interior Misc. Parts (11)   Mirrors (5)   Roof Fairings (1)   Seats (7)   Side View Mirrors (13)   Sleeper Doors (6)   Sleepers (4)   Steering Wheels (3)   Sun Visors (13)Cooling & HVAC (58)   A/C Condensers (1)   Blower Motors (HVAC) (2)   Cooling Assemblies (Rad., Cond., ATAAC) (5)   Fan Blades (1)   Fan Clutches (1)   Heater / AC Climate Control Parts (7)   Intercoolers & Charge Air Coolers (9)   Intercoolers (1)   Radiator Overflow Bottles / Surge Tanks (8)   Radiators (23)Electrical & Lighting (32)   Cab Wiring Harnesses (1)   Fuse Boxes & Panels (6)   Gauges (4)   Headlight Assemblies (6)   Radios (3)   Throttle Position Sensors (4)   Windshield Washer Reservoirs (3)   Windshield Wiper Arms (2)   Windshield Wiper Motors (3)Electrical Misc. Parts (1)Exhaust & Emissions (17)   Exhaust Assemblies (4)   Exhaust Brackets (12)   Exhaust Pipes (1)   Exhaust Parts (4)Exterior Misc. Parts (1)Frame & Chassis (24)   Brackets, Misc. (6)   Crossmembers (7)   Deck Plates / Catwalk (1)   Frame Horns (9)   Frames (1)Fuel System (29)   Fuel / Water Separators (1)   Fuel Tank Straps & Brackets (10)   Fuel Tanks (Truck) (18)Hood Parts (8)Hydraulics & PTO (3)   Hydraulic Tanks (3)Instrument Panel Clusters (25)Miscellaneous Truck Parts (3)Power Steering Reservoirs (1)Suspension & Steering (53)   Leaf Springs, Front (12)   Power Steering Assemblies (1)   Spring Hangers (1)   Steering Columns (16)   Steering Gears / Racks (2)   Steering Pumps (1)   Suspension Crossmembers / K-Frames (6)   Suspension Misc. Parts (7)   Suspensions (7)Tool Boxes (8)Truck Bodies / Boxes / Beds (1)Wheels, Tires & Hubs (1)   Mud Flap Hangers (1)
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Peterbilt (585)
Model
378 (585)
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Showing 501 - 525 of 585 Listings

501 - 525 of 585 listings
501 - 525 of 585 listings
Peterbilt 378 Fuel Tank Strap / Bracket

2002 Peterbilt 378 Fuel Tank Strap / Bracket

$242 USD
(USED) Peterbilt 378 Tank Dia: 25.5 Strap Width: 3.75 Material: STAINLESS Includes Step : NO Ref# 11-04522 M000 STRAP W/ BRACKETS, EACH SOLD SEPERATELY
Quantity2
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Part Number11-04522 M000
Stock Number25979468
MLS Number14314455
CategoryFuel Tank Straps & Brackets
Last Updated4/16/2026
Location
Sioux Falls, SD, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
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Vander Haag's Inc.
Peterbilt 378 Front Door Assembly

2002 Peterbilt 378 Front Door Assembly

$645 USD
(USED) Peterbilt 378 Color: BLACK Pwr Wnd: NO W/ Mirror: NO Type: COMPLETE DOES NOT INCLUDE MIRROR Ref# 2018778M001L LOWER POCKET HAS EXTRA SCREWS HOLDING POCKET UP
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Part Number2018778M001L
Stock Number25979479
MLS Number14314451
CategoryDoor Assemblies, Front
Last Updated4/16/2026
Location
Sioux Falls, SD, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
NUMBERCall Seller
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Vander Haag's Inc.
Used 2002 Peterbilt 378 Heater / AC Temp Control, Part # 18-04323

Used 2002 Peterbilt 378 Heater / AC Temp Control, Part # 18-04323

$431 USD
(USED) Peterbilt 378 Ref# 18-04323 3 KNOBS AND 3 BUTTONS, MISSING FAN SPEED KNOB, CRACK ABOVE AC ON/OFF SWITCH
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Part Number18-04323
Stock Number25979532
MLS Number14314442
CategoryHeater / AC Climate Control Parts
Last Updated4/16/2026
Location
Sioux Falls, SD, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
NUMBERCall Seller
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Vander Haag's Inc.
Peterbilt 378 Instrument Panel Cluster

1996 Peterbilt 378 Instrument Panel Cluster

$657 USD
(USED) Peterbilt 378 Gauges: 8 Engine: CAT 3406C Part#: NOT AVAILABLE TACHOMETER, OIL PSI, WATER TEMP, SPEEDOMETER, BATTERY VOLTS, ENGINE TEMP, FUEL GAUGE, AIR GAUGE, TRIP-METER, CRACKED...
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Stock Number25917043
MLS Number14083394
CategoryInstrument Panel Clusters
Last Updated4/5/2026
Location
Spencer, IA, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
NUMBERCall Seller
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Vander Haag's Inc.
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