Peterbilt 378 Radiators For Sale by Dealerships

(844) 402-___ SHOW
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1996 Peterbilt 378 Radiator

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(Used) 1996 Peterbilt 378, RADIATOR- Price is for Radiator ONLY- Picture is for display only, Engine: Detroit Series 60, Dimensions: L=37", H=36", Material: Aluminum, Less Condenser and...

Condition	Used
Engine Model	Detroit SERIES 60
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1996
Stock Number	P-112381
MLS Number	13868832
Category	Radiators
Last Updated	10/5/2025
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

(855) 905-___ SHOW
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2006 Peterbilt 378 Radiator

$565 USD

S21K0056 - Used Radiator Assembly off of a 2006 Peterbilt 378, Engine - Cummins ISX, Material - All Metal, Row - 3, Height 36 1/4 Inches, Width 33 1/4 Inches, Depth 2 Inches,...

Condition	Used
Engine Model	Cummins ISX
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	2131249
MLS Number	11330825
Category	Radiators
Last Updated	8/23/2025
Location	Spokane Valley, WA, US
Sold By	LKQ Heavy Truck

(801) 478-___ SHOW
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Peterbilt 378 Radiator

$135 USD

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

Quantity	2
Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	103132
MLS Number	13142881
Category	Radiators
Last Updated	12/14/2024
Location	Salt Lake City, UT, US
Sold By	Vriens Truck Parts

(833) 835-___ SHOW
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2004 Peterbilt 378 Radiator

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2004 Peterbilt 378 Radiator Assembly / Cooling Pack For Sale - Complete with radiator, CAC, AC condenser and Shroud - Used - May have some cosmetic blemishes (see photos). Give us a shout by...

Condition	Used
Engine Model	Caterpillar C15
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2004
Stock Number	PT-0653-35
MLS Number	10923033
Category	Radiators
Last Updated	10/9/2024
Location	York, ON, Canada
Sold By	Lomoca Inc.

2005 Peterbilt 378 Radiator

$895 USD

GOOD USED TAKEOUT/ PRESSURE CHECKED RADIATOR ASSEMBLY/ NO RADIATOR CAP/ FIREWALL MOUNTED RESERVOIR, Engine Make: Caterpillar, Engine Model: C15, With Frame: true

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2005
Part Number	239298
Stock Number	60224-7
MLS Number	12918614
Category	Radiators
Last Updated	6/7/2024
Location	Ucon, ID, US
Sold By	Holst Truck Parts

1999 Peterbilt 378 Radiator

$1,095 USD

USED COOLING PACK, N14 ENGINE, WILL PRESSURE CHECK, 90 DAY WARRANTY, Engine Make: Cummins, Engine Model: N14, With Frame: true

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1999
Stock Number	52724-14
MLS Number	12918567
Category	Radiators
Last Updated	6/7/2024
Location	Ucon, ID, US
Sold By	Holst Truck Parts

1998 Peterbilt 378 Radiator

$895 USD

USED COOLING PACK 3406E, WILL PRESSURE CHECK, 90 DAY WARRANTY, Engine Make: Caterpillar, Engine Model: 3406E, With Frame: true

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1998
Stock Number	52624-13
MLS Number	12894491
Category	Radiators
Last Updated	5/25/2024
Location	Ucon, ID, US
Sold By	Holst Truck Parts

(833) 359-___ SHOW
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2002 Peterbilt 378 Radiator

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USED PETERBILT 378 RADIATOR

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	T3829
MLS Number	12828741
Category	Radiators
Last Updated	5/2/2024
Location	Crandall, TX, US
Sold By	Tim Jordan's Truck Parts Inc.

2005 Peterbilt 378 Radiator

$1,095 USD

COOLING PACK ASSY 05 378 379 ISX CUMMINS TESTED WITH 90 DAY WARRANTY, Engine Make: Cummins, Engine Model: ISX, With Frame: true

Condition	Used
Engine Model	Cummins ISX
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2005
Stock Number	32923-14
MLS Number	11987694
Category	Radiators
Last Updated	12/18/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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

Condition	Used
Engine Model	Caterpillar C15
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2004
Part Number	239208
Stock Number	122622-13
MLS Number	11809831
Category	Radiators
Last Updated	12/18/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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

Condition	Used
Engine Model	Caterpillar C12
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2003
Part Number	239208
Stock Number	42022-13
MLS Number	11363117
Category	Radiators
Last Updated	12/18/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2000 Peterbilt 378 Radiator

$750 USD

GOOD TESTED RADIATOR ASSY 00 378 3406E CAT, FINS NEED STRAIGHTENED SOME, Engine Make: Caterpillar, Engine Model: C15

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2000
Stock Number	71421-13
MLS Number	10897365
Category	Radiators
Last Updated	12/17/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2001 Peterbilt 378 Radiator

$895 USD

GOOD TESTED RADIATOR 01 378 C15, 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	11421-13
MLS Number	10654409
Category	Radiators
Last Updated	12/17/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2002 Peterbilt 378 Radiator

$895 USD

GOOD TESTED RADIATOR 02 378 C12 CAT, Engine Make: Caterpillar, Engine Model: C12

Condition	Used
Engine Model	Caterpillar C12
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2002
Stock Number	120820-12
MLS Number	10617251
Category	Radiators
Last Updated	12/17/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2000 Peterbilt 378 Radiator

$1,095 USD

GOOD USED COOLING PACK. WILL BE PRESSURE CHECKED., Dimensions: N/A, Engine Make: Caterpillar, Engine Model: 3406E, Fill Location: N/A

Condition	Used
Engine Model	Caterpillar 3406E
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2000
Stock Number	80919-13
MLS Number	9861777
Category	Radiators
Last Updated	12/17/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2003 Peterbilt 378 Radiator

$1,095 USD

GOOD USED COOLING PACK ASSEMBLY. WILL BE PRESSURE CHECKED. INCLUDES AIR COOLER AND CONDENSER, Dimensions: N/A, Engine Make: Caterpillar, Engine Model: C15, Fill Location: N/A

Condition	Used
Engine Model	Caterpillar C15
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2003
Stock Number	100618-16
MLS Number	9526717
Category	Radiators
Last Updated	12/17/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

2002 Peterbilt 378 Radiator

$995 USD

GOOD USED COOLPAK. WILL BE PRESSURE CHECKED. INCLUDES AIR COOLER AND CONDENSER. WAS IN FIRE, CHECK FOR DAMAGE, Dimensions: GET, Engine Make: Caterpillar, Engine Model: C15, Fill Location:...

Condition	Used
Engine Model	Caterpillar C15
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2002
Stock Number	81817-8
MLS Number	9194094
Category	Radiators
Last Updated	12/17/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

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

Condition	Used
Engine Model	Cummins 444
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1987
Part Number	NA
Stock Number	32722-13
MLS Number	11293327
Category	Radiators
Last Updated	5/19/2023
Location	Ucon, ID, US
Sold By	Holst Truck Parts

Peterbilt 378 Radiator for a 1999 Peterbilt 378 SBA

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GOOD RADIATOR SET. OUT OF A RUNNING AND DRIVING TRUCK., Engine Make: Caterpillar, Engine Model: C12

Condition	Used
Engine Model	Caterpillar C12
Fits To Make(s)	Peterbilt
Fits To Model(s)	378 SBA
Will Fit Year(s)	1999
Stock Number	515187-13
MLS Number	10468600
Category	Radiators
Last Updated	5/11/2023
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

1997 Peterbilt 378 Radiator

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GOOD, Engine Make: Cummins, Engine Model: N14 Plus

Condition	Used
Engine Model	Cummins N14 Plus
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1997
Stock Number	440306-12
MLS Number	10237614
Category	Radiators
Last Updated	5/11/2023
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

1997 Peterbilt 378 Radiator

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GOOD, Engine Make: Cummins, Engine Model: N14 Plus

Condition	Used
Engine Model	Cummins N14 Plus
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1997
Stock Number	444994-6
MLS Number	10156350
Category	Radiators
Last Updated	5/11/2023
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

1996 Peterbilt 378 Radiator

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GOOD, Engine Make: Cummins, Engine Model: N14

Condition	Used
Engine Model	Cummins N14
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	1996
Stock Number	410937-14
MLS Number	10146573
Category	Radiators
Last Updated	5/11/2023
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

(855) 624-___ SHOW
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2005 Peterbilt 378 Radiator

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2005 PETE 378 RAD PACK, Engine Make: Caterpillar, Engine Model: C15

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2005
Stock Number	3638-PETE-8
MLS Number	13347017
Category	Radiators
Last Updated	3/7/2025
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.

(855) 624-___ SHOW
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2005 Peterbilt 378 Radiator

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2005 PETE 378 RAD PACK, Engine Make: Caterpillar, Engine Model: C15

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	378
Will Fit Year(s)	2005
Stock Number	3646-PETE-8
MLS Number	13346986
Category	Radiators
Last Updated	3/7/2025
Location	STURGEON COUNTY, AB, Canada
Sold By	Badger Truck Parts Ltd.