Peterbilt 378 Truck Parts For Sale in United States

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New Peterbilt 357/378 119" BBC SFA Hood Shell

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New Peterbilt 357/378 119" BBC SFA Hood Shell., Color: White/Sandable Gel Coat, Centerline: 55"

Condition	Used
Part Number	JP-P05
Stock Number	612-12061
MLS Number	8942729
Category	Hoods
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2007 Peterbilt 378 Radiator

$135 USD

07-05849M000 PIPE-ELBOW INTERMED W/O DRAIN COCK HOLE

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	103132
MLS Number	13142881
Category	Radiators
Last Updated	1/22/2026
Location	Salt Lake City, UT, US
Sold By	Vriens Truck Parts

1998 Peterbilt 378 Fuse Box

$848 USD

(USED) Peterbilt 378 Engine : CAT C12 Transmission: VERIFY MOUNTS TO FIREWALL, DOES NOT INCLUDE WIRING

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25697767
MLS Number	13130554
Category	Fuse Boxes & Panels
Last Updated	1/17/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

1998 Peterbilt 378 Fuel Tank

$775 USD

(USED) Peterbilt 378 Gallons: 90 Length: 40 Width/Dia: 26 Height: -

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25708900
MLS Number	13193599
Category	Fuel Tanks (Truck)
Last Updated	1/8/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

(855) 794-___ SHOW
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1988 Peterbilt 378 Radiator

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Radiator for 1988 Peterbilt 378 with Cummins Big Cam 4 Engine

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	1511-11
MLS Number	13893133
Category	Radiators
Last Updated	12/16/2025
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 750-___ SHOW
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1996 Peterbilt 378 Front Axle Assembly

$1,500 USD

Condition	Used
Suspension	Spring
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	8627
MLS Number	10893572
Category	Axle Assemblies, Front
Last Updated	12/6/2025
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

(855) 794-___ SHOW
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1999 Peterbilt 378 Battery Box

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1999 Peterbilt 379 Driver Side LH Battery Box, 29"L x 14"W x 12"H, 4 Battery Capacity.

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	1973-14
MLS Number	13897892
Category	Battery Boxes / Trays
Last Updated	12/5/2025
Location	Fresno, CA, US
Sold By	Garabedian Equipment

1988 Peterbilt 378 Air Cleaner / Air Filter Housing

$400 USD

PETERBILT STAINLESS WRAPPED STEEL AIR CLEANER

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	51053
MLS Number	13993062
Category	Air Cleaners / Air Filter Housings
Last Updated	11/20/2025
Location	Salt Lake City, UT, US
Sold By	Vriens Truck Parts

1995 Peterbilt 378 Air Cleaner / Air Filter Housing

$175 USD

(USED) Peterbilt 378 Size: 11 Material: STEEL Style: DONALDSON Location: INTERNAL Ref# EBA11-2403

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Part Number	EBA11-2403
Stock Number	25738122
MLS Number	13315439
Category	Air Cleaners / Air Filter Housings
Last Updated	10/18/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

1998 Peterbilt 378 Cab Assembly

$2,250 USD

(USED) Peterbilt 378 Brakes: AIR Engine: CAT C12 Type: SHELL Style: DAYCAB SHELL CAB, COMPONENTS SOLD SEPERATE,

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25697726
MLS Number	13128291
Category	Cabs
Last Updated	8/1/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

1993 Peterbilt 378 Front Door Assembly

$395 USD

(USED) Peterbilt 378 Color: WHITE Pwr Wnd: YES W/ Mirror: NO Type: COMPLETE DOES NOT INCLUDE MIRROR COMPLETE DOES NOT INCLUDE MIRROR; HANDLE LOOSE

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25371402
MLS Number	11848356
Category	Door Assemblies, Front
Last Updated	7/27/2025
Location	Spencer, IA, US
Sold By	Vander Haag's Inc.

1991 Peterbilt 378 Cab Assembly

$1,500 USD

(USED) Peterbilt 378 Brakes: AIR Engine: CUMMINS N14 M Type: SHELL Style: DAYCAB SHELL CAB COMPONENTS SOLD SEPERATE, RTO-14609B,

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25434233
MLS Number	12076161
Category	Cabs
Last Updated	7/11/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

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9999 Used 17 Yard Dump Bed 16'10" L x 7.5' W x 3.5' H off Peterbilt 378

$8,500 USD

USED 17 YARD DUMP BED 16'10" L X 7.5' W X 3.5'H OFF PETERBILT 378

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	145038
MLS Number	13627288
Category	Truck Bodies / Boxes / Beds
Last Updated	4/7/2026
Location	Oil City, LA, US
Sold By	Bobby Johnson Equipment Co., Inc.

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

$140 USD

BRACKET-ROLLER LOWER HOOD STL 13-04387

Quantity	15
Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	102665
MLS Number	12770193
Category	Hood Parts
Last Updated	3/18/2026
Location	Salt Lake City, UT, US
Sold By	Vriens Truck Parts

2006 Peterbilt 378 Fuel Tank Strap / Bracket

$242 USD

(USED) Peterbilt 378 Tank Dia: 22 ROUND Strap Width: 3.50 Material: STAINLESS Includes Step : NO STRAPS W/ BRACKETS

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25795648
MLS Number	13575815
Category	Fuel Tank Straps & Brackets
Last Updated	5/14/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

2006 Peterbilt 378 Fuel Tank Strap / Bracket

$400 USD

(USED) Peterbilt 378 Tank Dia: 22 ROUND Strap Width: 3.50 Material: STAINLESS Includes Step : YES STRAPS W/ BRACKETS AND STEPS.

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25795650
MLS Number	13575814
Category	Fuel Tank Straps & Brackets
Last Updated	5/14/2025
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

1997 Peterbilt 378 Front Door Assembly

$405 USD

(USED) Peterbilt 378 Color: RED Pwr Wnd: NO W/ Mirror: NO Type: COMPLETE DOES NOT INCLUDE MIRROR

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25708945
MLS Number	13193574
Category	Door Assemblies, Front
Last Updated	5/10/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(888) 693-___ SHOW
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1992 Peterbilt 378 Cab Assembly

$2,750 USD

1992 Peterbilt Day Cab , Painted green and white , Complete cab , Driver side mirror is damaged , There is also minimal damage to the back of the cab that can be notice in...

Condition	Used
Part Number	378 Cab
MLS Number	12344877
Category	Cabs
Last Updated	3/25/2025
Location	Mineral, VA, US
Sold By	Inside Auto Parts

1995 Peterbilt 378 Dashboard Assembly

$985 USD

(USED) Peterbilt 378 Engine: CUMMINS N14 CELECT Brake Type: AIR Tran Type: MANUAL Type: LESS INSTRUMENTATION DASH ASSEMBLY LESS INSTRUMENTATION

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Stock Number	25738160
MLS Number	13315419
Category	Dashboards
Last Updated	3/21/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

Peterbilt 378 Right Door Window Regulator

$250 USD

20-18283R REGULATOR-WINDOW

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Side	Right
Stock Number	49428
MLS Number	13404437
Category	Door Window Regulators
Last Updated	2/18/2025
Location	Salt Lake City, UT, US
Sold By	Vriens Truck Parts

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2002 Peterbilt 378 Windshield Wiper Motor

$75 USD

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	1967
MLS Number	10569995
Category	Windshield Wiper Motors
Last Updated	2/8/2025
Location	Morrisville, NY, US
Sold By	Dutcher's Inc.

(844) 641-___ SHOW
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2002 Peterbilt 378 HVAC Blower Motor

$75 USD

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	1966
MLS Number	10569994
Category	Blower Motors (HVAC)
Last Updated	2/8/2025
Location	Morrisville, NY, US
Sold By	Dutcher's Inc.

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2002 Peterbilt 378 Front Leaf Spring

$150 USD

2 LEAF

Quantity	2
Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	1964
MLS Number	10569992
Category	Leaf Springs, Front
Last Updated	2/8/2025
Location	Morrisville, NY, US
Sold By	Dutcher's Inc.