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Peterbilt 378 Truck Parts For Sale

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Truck Parts (790)
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Air Intake & Filtration (41)   Air Cleaners / Air Filter Housings (21)   Air Transfer Tubes (20)Air Tanks (20)Axles & Differentials (42)   Axle Assemblies, Front (40)   Spindles / Knuckles (2)Battery Box Covers (2)Battery Boxes / Trays (18)Brakes (5)   ABS Control Modules (1)   Air Dryers (3)   Brake Parts (1)Cab Mounts (5)Cab, Body & Interior (283)   Back Windows (1)   Bumpers, Front (15)   Cabs (31)   Dashboards (14)   Door Assemblies, Front (22)   Door Mirrors (22)   Door Vent Glass (1)   Door Window Regulators (2)   Door Windows (1)   Doors (45)   Fender Extensions (3)   Fenders (4)   Grilles (3)   Hood Hinges (2)   Hoods (30)   Interior Misc. Parts (21)   Mirrors (5)   Roof Fairings (1)   Seats (9)   Side View Mirrors (15)   Sleeper Doors (8)   Sleepers (8)   Steering Wheels (3)   Sun Visors (Exterior) (1)   Sun Visors (16)Cooling & HVAC (76)   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 (13)   Intercoolers & Charge Air Coolers (10)   Intercoolers (1)   Radiator Frames (1)   Radiator Overflow Bottles / Surge Tanks (8)   Radiators (30)Electrical & Lighting (37)   Body / Chassis Control Modules (1)   Cab Wiring Harnesses (1)   Door Electrical Switches (1)   Fuse Boxes & Panels (5)   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 (22)   Exhaust Assemblies (6)   Exhaust Brackets (14)   Exhaust Pipes (2)   Exhaust Parts (4)Exterior Misc. Parts (14)Frame & Chassis (31)   Brackets, Misc. (7)   Crossmembers (13)   Deck Plates / Catwalk (1)   Frame Horns (10)Fuel System (52)   Fuel / Water Separators (1)   Fuel Tank Straps & Brackets (13)   Fuel Tanks (Truck) (38)Hood Parts (9)Hydraulics & PTO (4)   Hydraulic Tanks (4)Instrument Panel Clusters (29)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 (12)Transmission & Driveline (9)   Driveshaft Parts (2)   Driveshafts (7)Truck Bodies / Boxes / Beds (1)Wheels, Tires & Hubs (2)   Mud Flap Hangers (2)
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Shop Truck Parts by Category

Showing 576 - 600 of 791 Listings

576 - 600 of 791 listings
576 - 600 of 791 listings
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
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Stock Number25917043
MLS Number14083394
CategoryInstrument Panel Clusters
Last Updated7/18/2026
Location
Spencer, IA, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
NUMBERCall Seller
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Vander Haag's Inc.
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 Updated6/14/2026
Location
Spencer, IA, 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

2005 Peterbilt 378 Instrument Panel Cluster

$657 USD
(USED) Peterbilt 378 Gauges: 6 Engine: CAT C12 Part#: - TACHOMETER, OIL PSI, WATER TEMP, SPEEDOMETER, BATTERY VOLTS, ENGINE TEMP, FUEL GAUGE, AIR GAUGE, TRIP-METER
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Stock Number25923509
MLS Number14115938
CategoryInstrument Panel Clusters
Last Updated5/24/2026
Location
Kansas City, MO, US
Sold By
Vander Haag's Inc.
(855) 370-___  SHOW
NUMBERCall Seller
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Vander Haag's Inc.
Peterbilt 378 Charge Air Cooler (ATAAC)

2007 Peterbilt 378 Charge Air Cooler (ATAAC)

$300 USD
GOOD PRESSURE CHECKED CHARGE AIR COOLER, 90 DAY WARRANTY. 379/378/357/377 FITS MANY MODELS, Core Charge: NA, Engine Make: Cummins, Engine Model: ISX
ConditionUsed
Engine ModelCummins ISX
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2007
Part Number222101
Stock Number122823-4
MLS Number12544106
CategoryIntercoolers & Charge Air Coolers
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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Holst Truck Parts
Peterbilt 378 Charge Air Cooler (ATAAC)

2004 Peterbilt 378 Charge Air Cooler (ATAAC)

$300 USD
GOOD PRESSURE CHECKED CHARGE AIR COOLER 90 DAY WARRANTY, Core Charge: NA, Engine Make: Caterpillar, Engine Model: C15
ConditionUsed
Engine ModelCaterpillar C15
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
Part Number222101
Stock Number122622-8
MLS Number11809826
CategoryIntercoolers & Charge Air Coolers
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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Holst Truck Parts
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