Engine Parts

Lower Coolant Tube By BESTfitReplace your Peterbilt truck's lower coolant tube with the BESTfit Stainless Steel Lower Coolant Tube, engineered for 357, 359, 377, 378, and 379 models. This multibend tube includes a 1/2-inch and 3/8-inch threaded fitting,...

4 ID X 4.21 OD X 8 Inch Hot Side CAC Hose By BESTfitDeliver dependable airflow in your EGR hot-side system with the BESTfit 4 ID x 4.21 OD x 8 Inch CAC Hose. This high-quality silicone hose provides flexibility, heat resistance, and durability for...

3.5 ID X 3.71 OD X 6 Inch Hot Side CAC Hose By BESTfitProtect your engine and maintain smooth EGR operation with the BESTfit 3.5 ID x 3.71 OD x 6 Inch Hot Side CAC Hose. Constructed from durable silicone, this high-quality hose measures 6 inches long...

4/4.5 ID X 6.5 Inch Hot Side CAC Hose By BESTfitEnsure smooth airflow and long-term performance with the BESTfit 4/4.5 ID x 6.5 Inch CAC Hose, designed for EGR hot-side systems. Made of high-quality silicone, this hose withstands high temperatures while...

3/3.5 ID X 3.21/3.71 OD X 6 Inch Cold CAC Hose By BESTfitThe BESTfit 3/3.5 ID x 3.21/3.71 OD x 6 Inch CAC Hose delivers dependable charge air flow for EGR cold side systems. Made from professional-grade silicone, it offers excellent heat resistance,...

3.5 ID X 3.71 OD X 6 Inch Cold CAC Hose By BESTfitAchieve reliable airflow and superior engine protection with the BESTfit 3.5 ID x 3.71 OD x 6 Inch CAC Hose. Engineered for EGR cold side systems, this silicone hose provides excellent heat resistance,...

34 X 38.875 X 2 Inch Radiator W/ Out Frame & Oil Cooler By BESTfitMaintain peak engine performance with the BESTfit 34 x 38.875 x 2 Inch Plastic & Aluminum Radiator, compatible with Peterbilt and Kenworth trucks. Featuring a durable plastic/aluminum core...

BESTfit Charge Air Cooler Fits International 8000 Series 1990-1999* High Quality Charge Air Cooler* Core Size:  - 35.650 Inch Height  - 24.680 Inch Width  - 1.630 Inch Depth  - 4.00 Inch Inlet  - 4.00 Inch Outlet* Sold...

Freightliner M2-106 Radiator By BESTfitProtect your Freightliner M2-106 engine with the BESTfit 28.625 x 29.500 x 2.00 Inch Radiator, designed for models 2008 and newer. This high-quality radiator includes frame pins and retaining clips for accurate...

BESTfit Charge Air Cooler Kit Fits Freightliner* High Quality Charge Air Cooler* Inches Core Size  - 28.625 Height  - 21.500 Width  - 2.000 Core Thickness  - 3.000 Inlet  - 3.000 Outlet* Has Extra 1 Inch Hose Port On Driver?s...

Freightliner AC Condenser Replacement By BESTfitThe BESTfit AC Condenser is a high-quality replacement for part A2272870000, designed for Freightliner Cascadia trucks with DD15 or ISX15 engines. Measuring 35 inches long, it delivers reliable cooling...

O- Ring Kit For A/C By BESTfit Fits Early Model ApplicationsEnsure a secure, leak-free seal in your air conditioning system with the BESTfit A/C O-Ring Kit for early model applications. This high-quality kit is made from durable EPDM material, designed...