Used Peterbilt 378 For Sale in United States

1990 Peterbilt 378 Cab Assembly

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1990 Peterbilt 378 Cab Complete, Wired For Caterpillar 3176A With A Eaton/ Fuller Manual Transmission.

Condition	Used
Stock Number	4316-13
MLS Number	14037060
Category	Cabs
Last Updated	4/10/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

1990 Peterbilt 378 Complete Hood 55"L

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1990 Peterbilt 378 Hood Complete, 55"L, Broken Passenger Headlamp.

Condition	Used
Stock Number	4316-12
MLS Number	14037052
Category	Hoods
Last Updated	4/10/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

1990 Peterbilt 378 Tool Box

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Passenger Side Tool Box, 24"L x 20"W x 22"H.

Condition	Used
Stock Number	4316-8
MLS Number	14037040
Category	Tool Boxes
Last Updated	4/10/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(844) 574-___ SHOW
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2006 Peterbilt 378 Day Cab Truck

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Location: Bemidji, MN, Caterpillar C15 ACERT Compound Turbo Diesel Engine, Eaton Fuller 18 Speed Manual Transmission, GVWR: 75000lbs, PTO, Wet Kit, Inter Axle Lock, Pusher Axle, Engine...

Condition	Used
Usage	36,000 Hours
Duty Class	Heavy Duty Day Cab Truck
Stock Number	98635
MLS Number	14303778
Category	Day Cab Semi Trucks
Last Updated	4/10/2026
Location	Merrill, WI, US
Sold By	Integrity Sales and Auction LLC

(844) 574-___ SHOW
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2005 Peterbilt 378 Day Cab Truck

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Location: ISA WI Yard - Merrill, WI, Caterpillar C15 ACERT Turbo Diesel Engine, 13 Speed Manual Transmission, 48000LB GVWR, 12000LB Front, 18000LB Rears, PTO, Two Line Wet Kit, Air Ride...

Condition	Used
Usage	742,356 Miles
Duty Class	Heavy Duty Day Cab Truck
Stock Number	98646
MLS Number	14282888
Category	Day Cab Semi Trucks
Last Updated	4/10/2026
Location	Merrill, WI, US
Sold By	Integrity Sales and Auction LLC

(855) 905-___ SHOW
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1990 Peterbilt 378 Headache Rack

Newly Listed

$250 USD

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	2630292
MLS Number	14301891
Category	Headache Racks
Last Updated	4/10/2026
Location	Portland, OR, US
Sold By	LKQ Heavy Truck

1988 Peterbilt 378 Fifth Wheel

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$400 USD

Holland FW35 Air Slide Fifth Wheel, 33.5" Frame Width, 86.5" Rail, 52.5" Slide Base, 24" Slide Travel, 6.75" Deck Height, Driver Side Release. Top Plate P/N XA-351-A-L-P, S/N A00002539H

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	1511-12
MLS Number	13893134
Category	Fifth Wheels
Last Updated	4/9/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 980-___ SHOW
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2006 Peterbilt 378 Gasoline / Fuel Truck - Caterpillar, 10 Speed Manual

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$24,500 USD

2006 PETERBILT 378 CATERPILLAR C13, FLEX AIR SUSPENSION, 10 SPEED TRANSMISSION, ALL ALUMINUM 22.5 WHEELS,,

Condition	Used
Usage	784,891 Miles
Duty Class	Heavy Duty Gasoline / Fuel Truck
Engine Model	Caterpillar C13 ACERT
Drivetrain	6x4
Transmission	10 Speed Manual
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.58 ratio
Stock Number	635128-PB
MLS Number	12906251
Category	Gasoline / Fuel Trucks
Last Updated	4/8/2026
Location	OGDEN, UT, US
Sold By	Rocky Mountain Truck Parts

1990 Peterbilt 378 Fender Extension

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$200 USD

Passenger Side Fender Extension For 1990 Peterbilt 378.

Condition	Used
Side	Driver
Stock Number	4316-11
MLS Number	14037050
Category	Fender Extensions
Last Updated	4/10/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

1990 Peterbilt 378 Fender Extension

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$200 USD

Driver Side Fender Extension For 1990 Peterbilt 378.

Condition	Used
Side	Driver
Stock Number	4316-10
MLS Number	14037047
Category	Fender Extensions
Last Updated	4/10/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

1999 Peterbilt 378 Right Front Door Assembly

Price Drop $350 USD

1999 Peterbilt 378 Passenger Side Door Assembly, Manual Window, w/ Mirror.

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Side	Right
Stock Number	1973-10
MLS Number	13897891
Category	Door Assemblies, Front
Last Updated	4/7/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

1999 Peterbilt 378 Hood 55"L Set Forward Axle, Part # 13-03520

$1,250 USD

1999 Peterbilt 378 Hood, 55"L, Set Forward Axle, P/N 13-03520. Multiple Cracks Repairs, Panel Separation Near Hood Supports, Emblem Damage. See Photos.

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	1973-7
MLS Number	14291275
Category	Hoods
Last Updated	4/5/2026
Location	Dinuba, CA, US
Sold By	Garabedian Equipment

1999 Peterbilt 378 Cooling Assembly

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Cooling Assembly, Complete, Includes RAD, CAC, and Condenser

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	1973-6
MLS Number	14291274
Category	Cooling Assemblies (Rad., Cond., ATAAC)
Last Updated	4/5/2026
Location	Dinuba, CA, US
Sold By	Garabedian Equipment

(844) 624-___ SHOW
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2003 Peterbilt 378 Day Cab Truck - Caterpillar 450HP, 13 Speed Manual

$74,950 USD

Classic work horse with a two line wet kit!, -Low mile CAT6NZ 450HP, -13 Speed manual, -Chalmers walking beam suspension, -210" Wheelbase, -Headache rack, We have financing options available...

Condition	Used
Usage	130,147 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Caterpillar C15
Drivetrain	6x4
Transmission	13 Speed Manual
Suspension	Chalmers
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	COWS11243
MLS Number	14244582
Category	Day Cab Semi Trucks
Last Updated	4/2/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(855) 905-___ SHOW
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2001 Peterbilt 378 Right Hood Bracket

$50 USD

HOOD GUIDE

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Side	Right
Stock Number	2540964
MLS Number	14184369
Category	Hood Brackets
Last Updated	4/2/2026
Location	Portland, OR, US
Sold By	LKQ Heavy Truck

(855) 905-___ SHOW
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2001 Peterbilt 378 Left Hood Bracket

$50 USD

HOOD GUIDE

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Side	Left
Stock Number	2540963
MLS Number	14184368
Category	Hood Brackets
Last Updated	4/2/2026
Location	Portland, OR, US
Sold By	LKQ Heavy Truck

(844) 624-___ SHOW
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2003 Peterbilt 378 Day Cab Truck - Caterpillar 450HP, 13 Speed Manual

$74,950 USD

Classic work horse with a two line wet kit!, -Low mile CAT6NZ 450HP, -13 Speed manual, -Chalmers walking beam suspension, -210" Wheelbase, -Headache rack, We have financing options available...

Condition	Used
Usage	5,987 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Caterpillar C15
Drivetrain	6x4
Transmission	13 Speed Manual
Suspension	Chalmers
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	COWS11243
MLS Number	14244580
Category	Day Cab Semi Trucks
Last Updated	4/1/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

(866) 695-___ SHOW
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2007 Peterbilt 378 Sleeper Semi Truck - Cummins 485HP

$75,000 USD

130955 Miles, Engine: CUMMINS ISX, 485 HP, Fuel Type: Diesel, Drive: 6x4, Air Trac Suspension, Sleeper Size: 36, Tandem Rear Axles

Condition	Used
Usage	130,955 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	485 HP
Engine Model	Cummins ISX
Drivetrain	6x4
Transmission	8LL
Sleeper Size	36"
Suspension	Air Trac
Rear Axle	Tandem Axle
Rear End	3.55 ratio
Stock Number	MCO656239
MLS Number	14160276
Category	Sleeper Semi Trucks
Last Updated	4/1/2026
Location	Dallas, TX, US
Sold By	MCO Truck and Equipment

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2006 Peterbilt 378 Day Cab Truck - Cummins 485HP

$65,000 USD

99759 Miles, 6119 Hours, Engine: CUMMINS ISX, 485 HP, Fuel Type: Diesel, Drive: 6x4, Air Trac Suspension, Wheel Base: 230, Tandem Rear Axles, Rear Axle Weight: 46000 lb

Condition	Used
Usage	6,119 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	485 HP
Engine Model	Cummins ISX
Drivetrain	6x4
Transmission	18 Speed
Suspension	Air Trac
Rear Axle	Tandem Axle
Rear End	46,000 lb
Stock Number	MCO645601
MLS Number	13811581
Category	Day Cab Semi Trucks
Last Updated	4/1/2026
Location	Dallas, TX, US
Sold By	MCO Truck and Equipment

1990 Peterbilt 378 Fuel Tank

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Driver Side Fuel Tank, 67"L x 26"D, 150 Gallon Capacity, Straps And Brackets Included.

Condition	Used
Side	Driver
Capacity	150
Stock Number	4316-9
MLS Number	14037044
Category	Fuel Tanks (Truck)
Last Updated	4/3/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 370-___ SHOW
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2005 Peterbilt 378 Fuel Tank

$760 USD

(USED) Peterbilt 378 Gallons: 100 Length: 51 Width/Dia: 26 Height: 26 100 GALLON ALUMINUM TANK ONLY 23" FTF

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25719159
MLS Number	13251598
Category	Fuel Tanks (Truck)
Last Updated	3/27/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(801) 478-___ SHOW
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Peterbilt 378 Suspension Crossmember / K-Frame

$450 USD

01-51526-002 CROSSMEMBER-AL MIDSHIP/CAB MTG, MULTIPLE COLORS, SHIP EASIEST TO GRAB

Quantity	2
Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	99438
MLS Number	12105213
Category	Suspension Crossmembers / K-Frames
Last Updated	3/26/2026
Location	Salt Lake City, UT, US
Sold By	Vriens Truck Parts

(844) 641-___ SHOW
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2006 Peterbilt 378 Right Fuel Tank

$800 USD

100 GALLON

Condition	Used
L x W	64 x 23
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Side	Right
Stock Number	12478
MLS Number	14268891
Category	Fuel Tanks (Truck)
Last Updated	3/31/2026
Location	Morrisville, NY, US
Sold By	Dutcher's Inc.

(844) 641-___ SHOW
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2006 Peterbilt 378 Left Battery Box

$450 USD

UNDER LEFT DOOR WITH LID

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Side	Left
Stock Number	12474
MLS Number	14268887
Category	Battery Boxes / Trays
Last Updated	3/31/2026
Location	Morrisville, NY, US
Sold By	Dutcher's Inc.