Peterbilt 378 Truck Parts For Sale

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Peterbilt (796)
Model
378 (796)
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For Sale (796)

Showing 76 - 100 of 796 Listings

76 - 100 of 796 listings
76 - 100 of 796 listings
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
Peterbilt 378 Radiator

2004 Peterbilt 378 Radiator

$995 USD
GOOD USED RADIATOR ASSEMBLY. WILL PRESSURE CHECK. 90 DAY WARRANTY 378/379 RESERVIOR ON TOP, Engine Make: Caterpillar, Engine Model: C15, Material: COPPER BRASS
ConditionUsed
Engine ModelCaterpillar C15
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2004
Part Number239208
Stock Number122622-13
MLS Number11809831
CategoryRadiators
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
Peterbilt 378 Cab Assembly

2004 Peterbilt 378 Cab Assembly

$5,995 USD
UNIBILT CAB SHELL ASSEMBLY/ HAS EXTERNAL BREATHERS/CAT WIRING NO GUAGES/NO COLUMN/NO BREATHERS/DOORS SEPERATE, Air/Hydraulic: Air/Hydraulic, 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 Number379/378/385
Stock Number122622-6
MLS Number11809824
CategoryCabs
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
Peterbilt 378 Radiator

2003 Peterbilt 378 Radiator

$895 USD
GOOD USED RADIATOR ASSEMBLY, WILL PRESSURE CHECK. 90 DAY WARRANTY, Dimensions: NA, Engine Make: Caterpillar, Engine Model: C12, Material: COPPER/BRASS
ConditionUsed
Engine ModelCaterpillar C12
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2003
Part Number239208
Stock Number42022-13
MLS Number11363117
CategoryRadiators
Last Updated5/14/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
Peterbilt 378 Charge Air Cooler (ATAAC)

2003 Peterbilt 378 Charge Air Cooler (ATAAC)

$300 USD
GOOD USED PRESSURE CHECKED AIR TO AIR/ CHARGE AIR COOLER, Engine Make: Caterpillar, Engine Model: C12
ConditionUsed
Engine ModelCaterpillar C12
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2003
Part Number222101
Stock Number42022-7
MLS Number11363111
CategoryIntercoolers & Charge Air Coolers
Last Updated5/14/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
Peterbilt 378 Front Axle Assembly

2003 Peterbilt 378 Front Axle Assembly

$1,495 USD
USED AXLE ASSEMBLY OR PARTS SEALED BEARING HUB ASSEMBLY $350.00 SPINDLE $450.00, Serial#: 6NZ, Hub Bolts: 10, Brake Type: S CAM, Axle Make: ROCKWELL
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2003
Part NumberFF985
Stock Number40622-12
MLS Number11346686
CategoryAxle Assemblies, Front
Last Updated5/14/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
Peterbilt 378 Radiator

1987 Peterbilt 378 Radiator

$1,095 USD
GOOD USED RADIATOR ASSEMBLY. LOW FLOW/ WILL PRESSURE CHECK. 90 DAY WARRANTY, Dimensions: GET, Engine Make: Cummins, Engine Model: 444
ConditionUsed
Engine ModelCummins 444
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)1987
Part NumberNA
Stock Number32722-13
MLS Number11293327
CategoryRadiators
Last Updated5/14/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
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