Peterbilt 378 For Sale

2007 Used Peterbilt 378 SET, Mud Flap Hangers

$180 USD

Used 378 SET, Mud Flap Hangers, Dimensions: 7.00"x27.50", Side: Set, Type: J-Type

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2007
Side	Set
Stock Number	727-10620
MLS Number	14005184
Category	Mud Flap Hangers
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2007 Used Peterbilt 378 Hydraulic Tank

$750 USD

Used 378 Hydraulic Tank, W x H x L: 48.00" x 25.00" x 14.00"

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2007
Stock Number	692-10140
MLS Number	14052495
Category	Hydraulic Tanks
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2007 Used Peterbilt 378 RH Cowl Extension

$150 USD

Used 378 RH Cowl Extension, Position: Front, Side: Passenger, Color: White

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2007
Side	Passenger
Part Number	1505181R
Stock Number	785-11217
MLS Number	14005183
Category	Cab Exterior Panels
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2007 Used Peterbilt 378 LH Cowl Extension

$150 USD

Used 378 LH Cowl Extension, Position: Front, Side: Driver, Color: White

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2007
Side	Driver
Part Number	1505181L
Stock Number	785-11216
MLS Number	14005182
Category	Cab Exterior Panels
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2007 Used Peterbilt 378 RH Exhaust Stack

$850 USD

Used 378 RH Exhaust Stack, Side: Passenger, Style: N/A, Type: Exhaust Stack, Length: 120.00", Width: -

Condition	Used
L x W	120.00" x -
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2007
Side	Passenger
Stock Number	639-11793
MLS Number	14005181
Category	Exhaust Parts
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2007 Used Peterbilt 378 LH Exhaust Stack

$850 USD

Used 378 LH Exhaust Stack, Side: Driver, Style: N/A, Type: Exhaust Stack, Length: 122.00", Width: 8.00"

Condition	Used
L x W	122.00" x 8.00"
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2007
Side	Driver
Stock Number	639-11792
MLS Number	14005180
Category	Exhaust Parts
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2007 Used Peterbilt 378 Fifth Wheel Crossmember

$361 USD

Used 378 Fifth Wheel Crossmember, W x H x L: 13.25"x9.50"x33.25"

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2007
Stock Number	648-12855
MLS Number	13984104
Category	Crossmembers
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2007 Used Peterbilt 378 Tool Box

$395 USD

Used 378 Tool Box, Side: Passenger, Width: 29.50", Height: 13.25", Material: Aluminum, Steps: Yes, Latch/Strap: N/A

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2007
Side	Passenger
Stock Number	693-10341
MLS Number	13984103
Category	Tool Boxes
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2007 Used Peterbilt 378 Sleeper Cab

$3,500 USD

Used 378 Sleeper Cab, Style: Sleeper Cab, Color: White/Blue

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2007
Stock Number	603-11952
MLS Number	14052494
Category	Cabs
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2007 Used Peterbilt 378 Hood

$2,260 USD

Used 378 Hood, Color: White/Blue, Centerline: 61.00"

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2007
Part Number	1304821
Stock Number	612-14952
MLS Number	14044533
Category	Hoods
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

Used Peterbilt 378 Hood Hinge

$150 USD

Used 378 Hood Hinge, Side: Passenger

Condition	Used
Side	Passenger
Part Number	1304708R
Stock Number	674-10394
MLS Number	13230510
Category	Hood Hinges
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

Used Peterbilt 378 RH Door

$225 USD

Used 378 RH Door, Side: Passenger

Quantity	8
Condition	Used
Side	Passenger
Stock Number	606-13170
MLS Number	11257698
Category	Doors
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2005 Used Peterbilt 378 RH Exhaust Stack Bracket

$135 USD

Used 378 RH Exhaust Stack Bracket, Side: Passenger, Type: Exhaust Stack Bracket, Length: 7.50", Width: 9.00"

Condition	Used
L x W	7.50" x 9.00"
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2005
Side	Passenger
Part Number	1415638R
Stock Number	639-10636
MLS Number	10749402
Category	Exhaust Parts
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

2005 Used Peterbilt 378 RH Sleeper Door

$162 USD

Used 378 RH Sleeper Door, Side: Passenger, Color: White

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2005
Side	Passenger
Stock Number	667-10383
MLS Number	10753112
Category	Sleeper Doors
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

New Aftermarket Peterbilt 378 5" Drop Chop Window Chop

$68 USD

New Aftermarket 378 5" Drop Chop Window Chop, Position: Cab Exterior, Size: 5", Side: Set, Type: Chopped Window Visor, Material: Steel

Quantity	2
Condition	Used
Side	Set
Part Number	P1068
Stock Number	654-10195
MLS Number	10413603
Category	Sun Visors
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

New Peterbilt 357/378 119" BBC SFA Hood Shell

Contact for price

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

(801) 478-___ SHOW
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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

(855) 370-___ SHOW
NUMBERCall Seller

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.

2006 Peterbilt 378 Headlight Assembly

$195 USD

LH HEADLAMP MOUNTING BRACKET. HEADLAMP IS DAMAGED

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Stock Number	11026-17
MLS Number	14094137
Category	Headlight Assemblies
Last Updated	1/16/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2006 Peterbilt 378 Headlight Assembly

$350 USD

RH HEADLAMP ASSY

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Stock Number	11026-16
MLS Number	14094136
Category	Headlight Assemblies
Last Updated	1/16/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2006 Peterbilt 378 Tool Box

$250 USD

GOOD USED TOOL BOX ASSY 30'' PAINTED/ PAINT NOT GREAT.

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Stock Number	11026-11
MLS Number	14091630
Category	Tool Boxes
Last Updated	1/16/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2006 Peterbilt 378 Tool Box

$150 USD

USED TOOLBOX ASSY 25'' FAIR CONDITION

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Stock Number	11026-12
MLS Number	14091629
Category	Tool Boxes
Last Updated	1/16/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2006 Peterbilt 378 Right Mirror

$250 USD

GOOD USED RH SIDE MIRROR ASSY

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Side	RIGHT
Stock Number	11026-13
MLS Number	14091628
Category	Mirrors
Last Updated	1/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2006 Peterbilt 378 Right Air Cleaner / Air Filter Housing

$395 USD

GOOD USED RH SIDE 15'' AIRCLEANER, Dimensions: 15'', Material: METAL

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2006
Side	RIGHT
Stock Number	11026-14
MLS Number	14091627
Category	Air Cleaners / Air Filter Housings
Last Updated	1/15/2026
Location	Ucon, ID, US
Sold By	Holst Truck Parts