Engine Parts

BESTfit Peterbilt 359 Clutch Return SpringThis 14.625 Inch Clutch Return Spring for a Peterbilt 359 is designed to replace your OE 06-00981 factory style clutch return spring. This direct replacement black clutch spring is constructed of high quality...

BESTfit Metal Radiator With Clamps & Bushings* High Quality Radiator Kit* Made Of Copper/Brass* 2 Row Core* With Frame* Kit Includes:  - (1) Radiator  - (1) 36 Inch X 2.50 Inch Coolant Hose  - (1) 6 Foot X .375 Inch Coolant Hose  -...

BESTfit 10.625 Inch Clutch Release Shaft Fits Peterbilt 359This 10.625 Inch Clutch Release Shaft Kit for a Peterbilt 359 is designed to replace your OE 06-00775 factory style clutch release shaft. This direct replacement clutch release shaft is...

BESTfit High Performance Copper Brass Radiator Kit With Surge Tank And 5 Row Core* High Quality Radiator Kit* Made Of Copper/Brass* 5 Row* Surge Tank Mounted On Top* Great For High Horsepower Or Heavy Haul Applications* 16 Fins Per Inch vs. 14 Fins With...

BESTfit Copper/ Brass Radiator W/ Out Oil CoolerKeep your engine temperature under control with the BESTfit 4 Row Radiator without Oil Cooler, designed specifically for Peterbilt trucks. With 2 1/2 inch inlet and outlet fittings, this radiator delivers...

BESTfit Radiator Mount Fits PeterbiltMaintain smooth and reliable cooling in your Peterbilt with the BESTfit Radiator Mount, crafted from durable polyurethane to absorb engine vibration and road shock. Replacing OEM numbers 07-02552, R307508, and 656215,...

BESTfit Spring For Fuel Pump Throttle Fits Peterbilt 359, 378, 379Maintain your truck's fuel system efficiency with the BESTfit Fuel Pump Throttle Spring. Designed to provide consistent tension and smooth throttle operation, this durable spring supports...

BESTfit 4 Row Radiator Kit W/ Out Surge Tank* High Quality Radiator Kit* Made Of Copper/Brass* With Hoses, Clamps And Mounting Accessories* Without Surge Tank* 4 Row Core* With Frame Work* Kit Includes:  - (1) Radiator  - (1) 36 Inch X 1.00...

BESTfit Radiator With 4 Row Core Fits Peterbilt* High Quality Radiator* Made Of Copper/Brass* With Surge Tank* 4 Row Core* With Frame Work* Core Dimensions:  - 36.25 Inch Height  - 34.625 Inch Width  - 2.500 Inch Core Thickness  - 2...

BESTfit 8.25 X 14.50 Inch Radiator Surge Tank Fits Peterbilt 378 & 379The BESTfit Remote Mount Radiator Surge Tank 8.25 x 14.50 inch is a high-quality component designed to enhance the cooling system of Peterbilt trucks. Its remote mount design allows...

BESTfit Radiator Core Fits PeterbiltThe BESTfit 5 Row Radiator Core 37.5 x 38.75 inch is the ideal choice for Peterbilt owners needing a dependable cooling solution. Its five rows of cooling tubes maximize heat dissipation and help prevent engine...

304 Stainless Steel Lower Coolant Tube With 3/8 Inch NPT Plug And 1 Inch Hose PortThe BESTfit 2 1/2 inch stainless steel lower coolant tube is a durable replacement for OE part F66-2854, engineered for Peterbilt 567 models. Made from high-quality 304...