High Mountain Horsepower Peterbilt 378 Cooling Assemblies For Sale

1 - 3 of 3 listings

Recently Updated

$99.99 USD

Steel Coolant Pipe, 2 1/2" Diameter, Take off 2004 Peterbilt 378 with a Cummins ISX450 Engine, OEM# F66-6021 / F666021

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	15771
MLS Number	13984575
Category	Cooling Assemblies (Rad., Cond., ATAAC)
Last Updated	1/3/2026
Location	Spokane Valley, WA, US
Sold By	High Mountain Horsepower

$124.95 USD

Steel Coolant Pipe, 2 1/2" to 3" Diameter, Take off 2004 Peterbilt 389 with a Cummins ISX450 Engine, OEM# F66-6159 / F666159

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	15779
MLS Number	13984583
Category	Cooling Assemblies (Rad., Cond., ATAAC)
Last Updated	12/5/2025
Location	Spokane Valley, WA, US
Sold By	High Mountain Horsepower

$79.95 USD

Charge Air cooler Pipe 4", take off 1993 Peterbilt 378, Engine: CAT 3406C,

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	378
Stock Number	14399
MLS Number	13727295
Category	Cooling Assemblies (Rad., Cond., ATAAC)
Last Updated	10/19/2025
Location	Spokane Valley, WA, US
Sold By	High Mountain Horsepower

Showing 1 - 3 of 3 Cooling Assembly Listings