Peterbilt 378 For Sale

2005 Peterbilt 378 Front Axle Assembly

$1,495 USD

GOOD USED AXLE ASSEMBLY OR PARTS, Capacity: 12000, Serial#: 35118780, Hub Bolts: 10, Brake Type: DRUM

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2005
Capacity	12000
Part Number	E1202I
Stock Number	101424-8
MLS Number	13212632
Category	Axle Assemblies, Front
Last Updated	7/31/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

1994 Peterbilt 378 Steering Column

$395 USD

GOOD USED STEERING COLUMN., Engine Make: Caterpillar, Engine Model: 3406B

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1994
Stock Number	71326-10
MLS Number	14509628
Category	Steering Columns
Last Updated	7/28/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

1994 Peterbilt 378 Left Door

$450 USD

GOOD USED LH DOOR ASSY, MANUAL WINDOW. HAS A DENT ON BOTTOM, Window Type: Manual

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1994
Side	LEFT
Stock Number	71326-7
MLS Number	14509625
Category	Doors
Last Updated	7/28/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(855) 905-___ SHOW
NUMBERCall Seller

2007 Peterbilt 378 Tool Box

$250.24 USD

2007 Peterbilt 378 Tool Box, Aluminum, Need Measurement

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	2541570
MLS Number	13716532
Category	Tool Boxes
Last Updated	7/24/2026
Location	Watseka, IL, US
Sold By	LKQ Heavy Truck

(844) 734-___ SHOW
NUMBERCall Seller

2004 Peterbilt 378 Dump Truck

$59,950 USD

2004 PETERBILT 378 Tri-Axle Dump Truck, 430HP, Rebuilt Caterpillar C12, 8LL Eaton Fuller, Chalmers Suspension, 46K rears, 20 Yard Ox Bodies Box, double frame, good tires, Second owner, runs...

Condition	Used
Stock Number	PKR0XUCF770385
MLS Number	13516257
Category	Dump Trucks
Last Updated	7/21/2026
Location	Lafayette, LA, US
Sold By	Proxy Equipment

2006 Used Peterbilt 378 SET, Mud Flap Hangers

$258 USD

Used 378 SET, Mud Flap Hangers, Dimensions: 8.00"x30.25", Side: Set, Type: Straight Type

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Side	Set
Stock Number	727-10630
MLS Number	14495219
Category	Mud Flap Hangers
Last Updated	7/21/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2006 Used Peterbilt 378 Front Closing Crossmember

$270 USD

Used 378 Front Closing Crossmember, W x H x L: 15.25"x7.25"x30.50"

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Stock Number	648-13228
MLS Number	14495114
Category	Crossmembers
Last Updated	7/21/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2006 Used Peterbilt 378 Engine Crossmember

$250 USD

Used 378 Engine Crossmember, W x H x L: 4.50"x9.50"x27.00"

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Stock Number	648-13229
MLS Number	14495113
Category	Crossmembers
Last Updated	7/21/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2006 Used Peterbilt 378 Center Crossmember

$361 USD

Used 378 Center Crossmember, W x H x L: 9.75"x8.50"x32.50"

Quantity	3
Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Stock Number	648-13230
MLS Number	14495112
Category	Crossmembers
Last Updated	7/21/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2006 Used Peterbilt 378 Center Crossmember

$361 USD

Used 378 Center Crossmember, W x H x L: 9.75"x8.25"x32.75"

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Part Number	0147626002
Stock Number	648-13231
MLS Number	14495111
Category	Crossmembers
Last Updated	7/21/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

1994 Peterbilt 378 Salvage Truck

Contact for price

94 PETE 378,3406B 425HP 3ZJ40133,RTO14708LL,DT461 411/560 2SPEEDS ON AIR TRAC,FL941 20K FRT AXLE, Serial#: 3ZJ, Ratio: 411/560, Engine Make: Caterpillar, Transmission Make: Eaton/Fuller

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1994
Stock Number	71326
MLS Number	14489878
Category	Salvage Trucks
Last Updated	7/17/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(855) 794-___ SHOW
NUMBERCall Seller

1999 Peterbilt 378 Right Front Door Assembly

$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	7/16/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(801) 478-___ SHOW
NUMBERCall Seller

Used Peterbilt 378 Lower Hood Roller Bracket, Part # 13-04387

$140 USD

BRACKET-ROLLER LOWER HOOD STL 13-04387

Quantity	14
Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	102665
MLS Number	12770193
Category	Hood Parts
Last Updated	7/14/2026
Location	Salt Lake City, UT, US
Sold By	Vriens Truck Parts

(801) 478-___ SHOW
NUMBERCall Seller

Peterbilt 378 Tilt Assist Spring Hood Bracket, Part # 13-03506

$125 USD

BRACKET-TILT ASSIST SPR HOOD 13-03506

Quantity	6
Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	102664
MLS Number	12770192
Category	Hood Parts
Last Updated	7/14/2026
Location	Salt Lake City, UT, US
Sold By	Vriens Truck Parts

2006 Used Peterbilt 378 Oil Tank

$1,000 USD

Used 378 Oil Tank, W x H x L: 25.00" x 25.00" x 36.00"

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Stock Number	692-10145
MLS Number	14475499
Category	Hydraulic Tanks
Last Updated	7/10/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2006 Used Peterbilt 378 Battery Box

$195 USD

Used 378 Battery Box, Side: Driver, Tray Material: Aluminum, Battery Capacity: 4, Width: 29.50", Height: 13.00", Steps: No, Latch/Strap: N/A

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Side	Driver
Stock Number	600-12557
MLS Number	14475498
Category	Battery Boxes / Trays
Last Updated	7/10/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2006 Used Peterbilt 378 SET, Full Tandem Fenders

$1,500 USD

Used 378 SET, Full Tandem Fenders, Side: Set, Material: Steel

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Side	Set
Stock Number	608-14025
MLS Number	14475497
Category	Fenders
Last Updated	7/10/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

(855) 794-___ SHOW
NUMBERCall Seller

1999 Peterbilt 378 Cooling Assembly

Contact for price

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

Condition	Used
Engine Model	3406E
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	7/10/2026
Location	Dinuba, CA, US
Sold By	Garabedian Equipment

(833) 300-___ SHOW
NUMBERCall Seller

2007 Peterbilt 378 Day Cab Truck - Cummins 475HP, 18 Speed Manual

Contact for price

Installed optionEXTENDED CAB,

Condition	Used
Usage	554,387 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	475 HP
Engine Model	Cummins ISX
Drivetrain	6x4
Transmission	18 Speed Manual
Suspension	Air Trac
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.91 ratio
Stock Number	C-37690
MLS Number	14474895
Category	Day Cab Semi Trucks
Last Updated	7/15/2026
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

(833) 835-___ SHOW
NUMBERCall Seller

2001 Peterbilt 378 Right Fender Extension

Contact for price

2001 Peterbilt 378 RH Fender Extension - Passenger Side - Used - May have some cosmetic blemishes (see photos). Got questions or need more information? Give us a shout by phone, email, or...

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2001
Side	RIGHT
Part Number	TBD
Stock Number	PT-0644-20
MLS Number	11906478
Category	Fender Extensions
Last Updated	7/8/2026
Location	York, ON, Canada
Sold By	Lomoca Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Used 2006 Peterbilt 378 60.5" Complete White Hood

$3,763 USD

(USED) Peterbilt 378 SFA/SBA: SFA Color: WHITE Type: COMPLETE Length: 60.5 COMPLETE HOOD. CRACKS ON PASSENGER SIDE FENDER, BOTH FENDERS HAVE CHIPS ON EDGES, STRESS CRACKING ALONG TOP OF HOOD...

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25795626
MLS Number	13586083
Category	Hoods
Last Updated	6/26/2026
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

2005 Peterbilt 378 Fuel Tank

$570 USD

(USED) Peterbilt 378 Gallons: 89 Length: 40 Width/Dia: 26 Height: - SHALLOW DENTS NEAR SEAM UNDER STRAPS

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25717431
MLS Number	13236041
Category	Fuel Tanks (Truck)
Last Updated	6/25/2026
Location	Des Moines, IA, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Used 1997 Peterbilt 378 SFA Red Complete Hood 60.5" Length

$3,763 USD

(USED) Peterbilt 378 SFA/SBA: SFA Color: RED Type: COMPLETE Length: 60.5 COMPLETE RH HEADLIGHT CRACKED BOTTOM OF LH FENDER CRACKED RH WHEEL WELL CRACKED

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25708931
MLS Number	13193584
Category	Hoods
Last Updated	6/26/2026
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(833) 835-___ SHOW
NUMBERCall Seller

2001 Peterbilt 378 Engine Mount

Contact for price

Peterbilt 378 Radiator Mount For Sale, Used. Call for more information, we ship everywhere., Air/Hydraulic: Air/Hydraulic, Engine Make: Caterpillar, Engine Model: C15

Condition	Used
Engine Model	Caterpillar C15
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2001
Stock Number	PT-0644-39
MLS Number	14439515
Category	Engine Mounts
Last Updated	6/19/2026
Location	York, ON, Canada
Sold By	Lomoca Inc.